JP2017112883A - Harvesting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a harvesting device suppressing loss of harvest targets.SOLUTION: A harvesting device includes: a raking reel 42 acting to rake planted crops and including a plurality of tines; a reaping device 44 cutting the planted crops; a conveyance deck receiving and conveying reaped crops; and a plurality of receiving members 43 passing above the reaping device 44 and extending to a front side with respect to the reaping device 44 and arranged at an interval enabling culms of the planted crops to pass therethrough in a reaping width direction. The tine 68 is arranged so as to rake the crops passing above the receiving members 43 and received by the receiving members 43 to a rear part.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a harvesting device that is provided at the front part of a machine body and that cuts a planted crop while scraping it.

  Conventionally, the harvesting device as described above is configured to include a scraping reel that acts on the planted crop, a cutting device that cuts the planted crop, and a transport deck that receives and transports the cropped crop. (For example, refer to Patent Document 1).

JP2013-128466A

  In the above conventional configuration, when a planted crop is scraped with a scraping reel, if the scraping reel comes into contact with a portion to be harvested (hereinafter referred to as “harvesting target”) of the crop, the harvesting target is planted. May leave the crop. In the harvesting machine described in Patent Document 1, when the harvested object is detached from the planted crop, the harvested object falls on the ground on the front side of the cutting device, and loss is likely to occur. In particular, when harvesting corn as a crop, there is a corn tuft that is formed in a form in which a large number of seeds that are harvested are aligned on the outer surface of a rod-shaped core, and is wrapped by foliage. It tends to break away from the pedicles and cause loss.

  Therefore, in view of the above situation, a harvesting device that can suppress the loss of the harvested object is desired.

The characteristic configuration of the harvesting apparatus according to the present invention is:
A scraping reel having a plurality of tines acting on the planted crop, a mowing device for cutting the planted crop, a transport deck for receiving and transporting the harvested crop, and the mowing device passing above the mowing device A plurality of receiving members that extend to the front side and are provided at intervals through which the stems of planted crops can pass in the cutting width direction,
The tine is provided so as to be able to scrape back a crop that has passed over the receiving member and received by the receiving member.

  According to the present invention, when the planted crop is scraped by the scraping reel, even if the scraping reel comes into contact with the planted crop and the harvested object is detached from the planted crop, the harvested target is not removed from the harvesting device. Before it falls on the ground on the front side, it is received by the receiving member. Thereby, it can avoid that the harvest target object falls on the ground.

  When the planted crop is scraped by the scraping reel, the stems of the planted crop pass through the gaps formed between the receiving members along the cutting width direction. Since it is located, it is possible to appropriately receive the harvested object that has left the planted crop.

  Then, since the tine can scrape the crop that has passed over the receiving member and received by the receiving member backward, the harvest object that has been detached from the crop and received by the receiving member is transported backward. It is possible to avoid being left on the receiving member without being sent to the deck.

  Therefore, not only the harvesting object falls on the ground, but also the harvesting object can be avoided from being placed on the receiving member, and the loss of the harvesting object can be suppressed. became.

  In the present invention, the tine passes through a gap between the first tine capable of scraping the crop received by the receiving member backward and the plurality of receiving members longer than the first tine. And a second tine capable of scraping the crop backwards.

  According to this structure, when the 2nd tine scrapes, it can pass through the clearance gap between receiving members, and can scrape a crop toward a rear cutting device. Then, the first tine can scrape the harvested object received by the receiving member backward.

  Therefore, in addition to the original scraping function of scraping the planted crop toward the reaping device, the harvesting object that has been released due to the scraping action can be scraped by the scraping reel.

In the present invention, a plurality of support members extending along the cutting width direction and supporting the plurality of tines at intervals in the cutting width direction are provided in the scraping reel at intervals in the circumferential direction.
It is preferable that the support member includes a first support member that supports only the first tine and a second support member that supports only the second tine.

  According to this configuration, among the plurality of support members provided at intervals in the circumferential direction, only the plurality of first tines are supported by the first support member, and only the plurality of second tines are supported by the second support member. Is done. Since the timing at which the first tine acts is shifted from the timing at which the second tine acts, it is possible to efficiently scrape the harvested object detached during the second tine by the first tine. .

  In the present invention, it is preferable that the second support member has a larger number than the first support member.

  According to this configuration, since the number of the second support members, that is, the number of the second tines is large, the original scavenging function of scoring the planted crop with the second tine to the harvesting device is sufficiently exhibited. can do.

In the present invention, a part of the plurality of gaps formed between the receiving members is formed as a wide gap having a wider width in the cutting width direction than the other gaps,
It is preferable that a narrow receiving member extending in the front-rear direction and narrower in the cutting width direction than the receiving member is provided in the wide gap.

  According to this configuration, for example, a wide gap having a wide width in the cutting width direction is formed in a place where planted crops are likely to stay. In addition, by providing a narrow receiving member narrower in the cutting width direction than the receiving member in the wide gap, when the planted crop is scraped toward the cutting device by passing between the receiving members. , It becomes easy to guide the planted crops, it is possible to suppress the stay.

  In the present invention, the front end portion of the narrow receiving member is positioned closer to the rear side of the body than the front end portion of the receiving member, and the upper end portion of the narrow receiving member is located above the guide portion of the receiving member. It is preferable that it is located.

  According to this configuration, the crop guided in the wide gap is easy to be guided without staying since it passes through the front end portion of the receiving member and reaches the front end portion of the narrow receiving member. After the front end of the receiving member has passed, it tends to stay. However, the harvested object that has been detached first hits the upper end of the tall narrow receiving member and is then guided onto the receiving member. The tine is squeezed backwards well.

  In the present invention, it is preferable that the wide gap is formed at an end of the transport deck in the cutting width direction.

  According to this configuration, crops on adjacent vegetation strips that are different from the harvest target may be scraped together at the end portion in the cutting width direction of the transport deck to increase the crop amount. As a result, there is a high risk of crop retention. Therefore, by forming a wide gap at the end in the cutting width direction, it is possible to avoid the retention of crops at the end.

It is a whole side view of a combine. It is a whole top view of a combine. It is a side view of a cutting part. It is a side view of a take-in reel. It is a front view of a take-in reel. It is a top view of a receiving member. It is a side view of a receiving member. It is a side view of a narrow receiving member. It is a vertical front view of a receiving member. It is a perspective view of a support stand. It is a vertical side view of a tine attachment part. It is a side view of a cover member connection part. It is a front view of a cover member connection part. It is a top view of a body frame. It is a vertical side view of an airframe frame. It is a side view of a wheel support part. It is the XVII-XVII sectional view taken on the line of FIG. It is a front view of a weight sensor arrangement | positioning part. It is the XIX-XIX sectional view taken on the line of FIG.

  Hereinafter, a case where an embodiment of a harvesting apparatus according to the present invention is applied to a cutting unit provided in a normal combine will be described with reference to the drawings.

  In this embodiment, when defining the front-rear direction of the aircraft, it is defined along the aircraft advancing direction in the working state, and when defining the left-right direction of the aircraft, the left-right direction is defined as viewed in the aircraft advancing direction. . That is, the direction indicated by the reference symbol (F) in FIGS. 1 and 2 is the front side of the aircraft, and the direction indicated by the reference symbol (B) in FIGS. The direction indicated by reference sign (L) in FIG. 2 is the left side of the aircraft, and the direction indicated by reference sign (R) in FIG.

  FIG.1 and FIG.2 has shown the normal type combine provided with the harvesting apparatus based on this invention. This combine can harvest corn as a crop.

  The combine is a traveling machine body 1, a harvester 2 as a harvesting device that is located on the front side of the traveling machine body 1 and scrapes a planted crop as it travels, and a feeder that conveys the harvested crop backward. 3 is provided. The traveling machine body 1 includes a pair of left and right crawler traveling devices 4 and a body frame 5 supported by the crawler traveling device 4.

  An operation unit 7 covered with a cabin 6 is provided on the right side of the front portion of the traveling machine body 1. The driver 7 is provided with a driver seat 8, a meter panel 9, a side panel 10, a steering lever 11, and the like. At the rear of the traveling machine body 1, a threshing device 12 that threshs the harvested crop and a grain tank 13 that stores the grain obtained by the threshing process are provided in a state of being aligned in the left-right direction of the machine body.

  In the crawler traveling device 4, a track frame 15 that supports a plurality of ground rolling wheels 14 is pivotally connected to the body frame 5 via swing links 16 on both front and rear sides. Then, by swinging the swing link 16 with a hydraulic cylinder (not shown), the track frame 15 can be moved up and down relative to the body frame 5 to change the ground height of the body.

  As shown in FIGS. 14 and 15, the body frame 5 includes a plurality of longitudinal frame bodies 5 </ b> A that extend along the longitudinal direction of the body and a plurality of lateral frame bodies 5 </ b> B that extend along the lateral direction of the body, which are connected in a grid pattern. ing. Since a force is applied in multiple directions to the place where the swing link 16 is pivotally supported, the lateral frame bodies 5B positioned on both the front and rear sides are connected to each other by the inclined frame body 5C extending along the oblique direction to strengthen the strength. I am trying.

  Of the plurality of grounded rollers 14 in the crawler traveling device 4, the fourth roller 14a from the front end is configured as a fixed roller, not a vertically swinging roller as in the prior art. As shown in FIGS. 16 and 17, substantially U-shaped support brackets 17 in a plan view are integrally connected to the left and right sides of a track frame 15 having a structure in which a frame body having a substantially U-shaped cross section is vertically stacked. A notch 18 having a U-shape in side view is formed at the lower end edge of the support bracket 17, and a ring body unit 19 is attached to the notch 18. The wheel body unit 19 is assembled in advance in a unit state by externally mounting and attaching a wheel 14 a to the outer peripheral portion of the support shaft 20 via a bearing 21. The support shaft 20 is inserted into the notches 18 on both the left and right sides, and is fastened and fixed with bolts 23 via washers 22.

  The threshing device 12 executes a threshing process on the harvested crop conveyed by the feeder 3 by a handling cylinder 24 provided in the handling chamber and a receiving net (not shown) provided on the lower side thereof. The processed material that has leaked the receiving net is sorted into grains and waste straw by a sorting section (not shown) below the handling room. At the rear of the machine body of the threshing device 12, there is provided a waste straw shredding device 25 that shreds waste straw waste generated by the threshing process and discharges it downward and outward, and the grain is stored in the grain tank 13. .

  At the rear of the grain tank 13, a grain discharging device 26 that discharges the grains stored in the grain tank 13 to the outside is provided. The grain discharging device 26 includes a vertical screw conveyor 26A that conveys the grain discharged upward by a bottom screw 27 (see FIG. 18) provided in the grain tank 13 along the front-rear direction, and a vertical screw conveyor 26A. The horizontal screw conveyor 26B which conveys a grain from the terminal part of a horizontal direction, and discharges | emits it from the front-end | tip.

  The grain tank 13 is supported by the machine body so as to be able to swing around the longitudinal axis Y that is the rotational axis of the vertical screw conveyor 26A, and retracts toward the machine body side (see FIG. 2). It is configured to be switchable to a maintenance posture (not shown) that projects outward to the side. The combine is provided with a weight sensor 28 made of, for example, a load cell that can measure the weight of the grain stored in the grain tank 13.

The weight sensor 28 is arranged so that it can measure the weight accurately by measuring the position corresponding to the lowermost end of the grain tank 13.
That is, as shown in FIGS. 18 and 19, a support plate 29 for supporting the bottom screw 27 is provided at the front end of the grain tank 13. At the lower end of the support plate 29, rolling rollers 31 are rotatably supported by bearing brackets 30 provided on the front and back sides, respectively. When the posture of the grain tank 13 is changed between the normal posture and the maintenance posture, the rolling roller 31 moves lightly while supporting the load by rolling on the receiving surface 32 provided in the body frame 5. Guide you as you can.

  The rolling roller 31 is also used as a detected portion that acts on the weight sensor 28. In the weight sensor 28, a sensor body 28A is supported on a cradle 33 provided at the lower part of the machine body frame 5, and an upper weight detection unit 28B is provided. A roller support 34 is provided so as to straddle the weight sensor 28.

  The roller support 34 includes a horizontal roller receiver 34a and vertical surface portions 34b positioned on both front and rear sides of the roller receiver 34a, and is formed in a substantially inverted U shape in side view. Long holes 35 extending in the vertical direction are formed in the vertical surface portions 34 b on both the front and rear sides, and engaging pins 36 that enter and engage the long holes 35 are provided in the machine body frame 5.

  As shown in FIG. 18, when the grain tank 13 is positioned at an appropriate position in the normal posture, the lock pin 37 that is energized and biased by the spring enters the engagement hole 38 formed in the receiving surface 32. In addition, the rolling roller 31 is configured to be held at the position corresponding to the weight detection unit 28B. The position of the pair of rolling rollers 31 is set so that a load is applied substantially evenly on the upper side of the weight detector 28B. Since the roller support 34 can move up and down by the amount of accommodation by the long hole 35, the weight sensor 28 can measure the weight of the grain tank 13.

Next, the cutting unit 2 will be described.
The cutting unit 2 is integrally connected to the feeder 3 and is connected to the front portion of the machine body frame 5 via the feeder 3 so as to be movable up and down. That is, the feeder 3 is supported by the machine body so as to be swingable around an axis X1 extending in the left-right direction of the machine body. A hydraulic cylinder 39 is provided across the feeder 3 and the machine frame 5. The feeder 3 is swung around the axis P1 by the hydraulic cylinder 39, and the cutting unit 2 is moved up and down.

  The mowing unit 2 includes a mowing frame 40 that supports the entire mowing unit, a pair of left and right dividers 41 that divide the planted crop into harvesting targets and non-harvesting targets, a scraping reel 42 that scrapes the planting crop, and a scraping action. Accordingly, a plurality of receiving members 43 for receiving the corn tufts separated from the planted crops, a clipper-type mowing device 44 for cutting the planted crops, and an auger 45 for gathering the harvested crops toward the center in the cutting width direction. And.

  When explanation is given about the corn tuft, the corn creates tufts containing a large number of seeds (grains) that are harvested. The tufted portion includes a large number of seeds inside the foliage, and the seeds are formed in a form aligned with the outer surface of the rod-shaped core.

  In the harvesting unit 2, the planted crop is divided into a harvesting target and a non-harvesting target by the pair of left and right dividers 41, and the planted crop to be harvested is scraped by the take-up reel 42. Then, the stalks of the planted crop scraped by the scraping reel 42 are cut by the reaping device 44, the harvested crop is gathered together by the auger 45 toward the center in the cutting width direction, and the threshing device 12 is fed by the feeder 3. It is conveyed to.

  The cutting frame 40 includes a rear wall portion 46 integrally connected to the front portion of the feeder 3, left and right side wall portions 47 connected to the left and right sides of the rear wall portion 46, and a cutting crop to the auger 45. And a transport deck 48 for transporting the head. A lateral frame 49 that extends in the cutting width direction and supports the cutting device 44 is bolted to the front end of the transport deck 48. The left and right side wall portions 47 are formed in a substantially triangular shape in a side view, and the pair of left and right dividers 41 are formed in a substantially triangular shape in a side view so as to be connected to the front portions of the left and right side wall portions 47. .

  As shown in FIGS. 1 and 3, a vertical metal guide plate 50 having a wide guide surface in the vertical direction and the front-rear direction is attached to the upper portion of the side wall 47. The upper edge portion of the front side of the guide plate 50 is formed to extend rearward and upward in a state of being connected from the upper end portion of the rear portion of the divider 41, and the upper edge portion of the rear side is substantially the same along the front-rear direction. It is formed to be high. By providing the guide plate 50, it is possible to guide the weeding so that the crop to be cut protrudes outward through the upper side of the side wall portion 47 and the uncut crop does not enter the cutting region of the cutting portion 2. .

  As shown in FIGS. 6 and 7, the cutting device 44 is configured as a clipper that reciprocates in the cutting width direction. The cutting device 44 includes a cutting blade 51 that reciprocates in the cutting width direction, a knife bar 52 that drives the cutting blade 51, and a knife clip 53 that holds the cutting blade 51 slidably. In addition, the receiving blade with respect to the cutting blade 51 is comprised by the support stand 57 mentioned later. The knife clip 53 is bolted to the horizontal frame 49. The cutting blade 51 is reciprocated in the cutting width direction by the knife bar 52, and the planted crop is cut.

  As shown in FIG. 2, the auger 45 is rotatably supported by a pair of left and right side walls 47 in the cutting frame 40. The auger 45 is configured such that the harvested crop is transported laterally by the screw blades 55 and scraped into the feeder 3 by the scraping fingers 56.

Next, the receiving member 43 will be described.
The receiving member 43 extends to the front side of the cutting blade 51 through the upper portion of the cutting blade 51 in a state substantially parallel to the cutting blade 51. The front end position of the receiving member 43 is located slightly behind the pair of left and right dividers 41. The receiving member 43 is bolted to a support base 57 fixed to the horizontal frame 49.

  As shown in FIGS. 6, 7, and 9, the receiving member 43 is configured by a corrugated metal member having a cross-sectional shape in which peak portions 43 b and 43 d and valley portions 43 a and 43 c are arranged in the cutting width direction. The part side is formed in a tapered shape (specifically, a sharp triangular shape). A reinforcing plate 43f is attached to a portion of the lower surface where the bolt is connected.

  As shown in FIG. 7, the support table 57 extends below the cutting blade 51 to the front side of the cutting blade 51 and supports the receiving member 43 from below at a position on the front side of the cutting blade 51. The support base 57 is fixed to the horizontal frame 49 with bolts 58 and nuts 59 in a state along the lower surface of the cutting blade 51. At this time, the support base 57 corresponding to the position of the knife clip 53 among the plurality of support bases 57 is fixed to the lateral frame 49 together with the knife clip 53 by bolts 58 and nuts 59.

  As shown in FIG. 10, the support base 57 extends below the cutting blade 51 to the front side of the cutting blade 51. A bolt hole 57a corresponding to the bolt 58 is formed at the rear end portion, and an abutting portion 57A protruding rearward is formed. When the contact portion 57A contacts the horizontal frame 49, the fixed state of the support base 57 with respect to the horizontal frame 49 is stabilized.

  The rear end portion of the receiving member 43 is fixed to the front end attaching portion 57 </ b> B by a bolt 60. A pair of left and right bolt holes 57b corresponding to the bolts 60 are formed in the mounting portion 57B. A guide surface 57G that extends in the front-rear direction and guides the crop (the crop that has entered between the adjacent receiving members 43) is formed on the lateral outer surface. A concave portion 57c for preventing interference with the knife bar 52 is formed in the upper portion. A groove 57d into which the cutting blade 51 enters is formed in the front and rear middle part. The edge of the portion located on the lower side of the groove 57d forms a receiving blade of the reaping device 44.

  As shown in FIG. 6, the plurality of receiving members 43 are provided at intervals D1 (equal intervals) in the cutting width direction. That is, the interval D1 between the plurality of receiving members 43 is set to the same interval as the interval D2 (see FIG. 5) between the plurality of tines 68. Further, the gap G between the adjacent receiving members 43 is an interval at which the corn tufts detached from the planted crop can be received.

  As shown in FIGS. 2 and 6, a wide gap 61 at the left end in the cutting width direction of the transport deck 48 is wider than the gap formed between the receiving members 43 at other positions in the cutting width direction. Is formed. The wide gap 61 is provided with a narrow receiving member 62 extending in the front-rear direction and narrower than the receiving member 43 in the cutting width direction.

  In other words, a wide gap 61 is formed between the receiving member 43 located on the leftmost side of the plurality of receiving members 43 and the left divider 41. In the wide gap 61, two narrow receiving members 62 are provided in a state extending in the front-rear direction with a gap in the horizontal direction. As shown in FIG. 8, the narrow receiving member 62 includes an upper guide portion 62a made of a small-diameter round bar that is long in the front-rear direction at the upper portion, and is connected to the upper guide portion 62a at the lower portion and supports 57 A plate-like support portion 62b is provided.

  As shown in FIG. 6, the front end portion of the narrow receiving member 62 is located on the rear side of the machine body relative to the front end portion of the receiving member 43, and as shown in FIG. 8, as the upper end portion of the narrow receiving member 62 The upper guide part 62 a is located above the guide part (upper end part) of the receiving member 43.

  As shown in FIGS. 3 to 5, the take-up reel 42 is rotatably supported by the reel frame 63 via the rotation shaft 42 a. The reel frame 63 has a rotation support shaft 63A attached to the rear wall portion 46 of the cutting frame 40 by a support stay 64, and is supported by the cutting frame 40 so as to be swingable about an axis P2 extending in the left-right direction of the machine body. Yes. A pair of left and right hydraulic cylinders 65 are provided across the reel frame 63 and the cutting frame 40. The reel frame 63 is swung around the axis P2 by the hydraulic cylinder 65, and the take-up reel 42 is moved up and down.

  Reel discs 66 are respectively provided at the left and right ends of the rotating shaft 42a. The reel disk 66 includes a boss portion 66a positioned at the center supported by the rotating shaft 42a, and six arm portions 66b extending radially outward from the boss portion 66a. A tine support rod 67 as a support member is installed over the tops of the arm portions 66b of the left and right reel disks 66.

  Of the six tine support rods 67, a plurality of tines 68 that act on the planted crops are attached to a total of three tine support rods 67 every other one. As shown in FIG. 11, the tine 68 has a T-shaped cross section. The tine 68 is made of a metal member, for example. The tine 68 includes a horizontal portion 68a along the cutting width direction and a vertical portion 68b along the direction orthogonal to the cutting width direction. The tine 68 is attached to the tine support rod 67 so that the vertical portion 68b faces rearward. The width (length in the cutting width direction) B (see FIG. 5) of the tine 68 (lateral portion 68a) is set to be smaller than the gap G between the adjacent receiving members 43.

  Each of the six tine support rods 67 is made of a round pipe material and is supported so as to be rotatable relative to the reel disk 66. The rotation phase of the tine support rod 67 is arranged at the right end of the take-up reel 42 so that the tine 68 provided on the tine support rod 67 always maintains a downward posture as the rotary shaft 42a rotates. A posture holding mechanism 69 having a well-known structure is provided. The posture holding mechanism 69 will be briefly described. As shown in FIGS. 4 and 5, a rotary body 70 having the same configuration as that of the right reel disk 66 is provided with the rotation axis slightly shifted back and forth, and the rotation thereof. The top portions of the body 70 and the reel disc 66 corresponding to the tine support rod 67 are pivotally connected by a link 71. That is, a parallel quadruple link is formed by each eccentric rotating shaft core and each of the connecting points on both sides of the link 71. When power is transmitted to the rotating shaft 42a and the link 71 rotates, the link 71 maintains the same posture. By connecting the tine support rod 67 and the link 71, the rotation phase of the tine support rod 67 is set to a substantially constant phase. By holding, the tine 68 can maintain the downward posture.

  As shown in FIG. 11, a plate 72 is welded and fixed to the upper end portion of the vertically oriented portion 68 b in the tine 68. A welding nut 73 is provided on the surface of the plate 72 on the side facing portion 68a. The tine support rod 67 is provided with a channel member 74 extending along the tine support rod 67. The end of the tine 68 on the plate 72 side is fitted into the channel member 74 and is fixed to the channel member 74 from the rear by bolts 75.

  The tine 68 passes the gap between the first tine 68A, which is longer than the first tine 68A and the plurality of receiving members 43, and the crop is moved backward. And a second tine 68B that can be raked into. The tine support rod 67 includes one first support rod 67A that supports only the first tine 68A, and two second support rods 67B that support only the second tine 68B. That is, the number of the second support rods 67B is larger than that of the first support rods 67A.

  As shown in FIG. 4, any one of the three tine support rods 67 is a first support rod 67A, and the longitudinal direction of the first support rod 67A, that is, the axial direction of the rotating shaft 42a ( Hereinafter, the short first tine 68A is attached in a state of being arranged at a predetermined interval along the rotation axis direction). The remaining two of the three tine support rods 67 are second support rods 67B, and the first support rods 67B are arranged in the second support rods 67B at a predetermined interval along the rotational axis direction. A second tine 68B longer than the tine 68A is attached.

  As shown in FIG. 5, the mounting positions of the first tine 68A and the second tine 68B are displaced along the rotational axis direction. The attachment position of the first tine 68A is set to a position passing through the upper part of the receiving member 43. On the other hand, the attachment position of the second tine 68B is set to a position that passes through the gap G between the adjacent receiving members 43.

  Therefore, when the second tine 68B passes between the adjacent receiving members 43 along the tip locus shown by the line Q1 in FIG. 4, the receiving member 43 does not hinder the operation of the tine 68, and the planted crop Can be firmly scraped by the second tine 68B. Even if the corn tufts separated from the planted crop are sandwiched between the adjacent receiving members 43, the corn tufts can be scraped by the tines 68.

  Then, the first tine 68A passes through the upper part of the receiving member 43 along the tip trajectory indicated by the line Q2 in FIG. 4 so that the corn tufts detached from the planted crop are placed on the upper part of the receiving member 43. Even if the longitudinal direction is placed in a posture along the front-rear direction, the first tine 68A can be scraped backward.

  A cover member 80 is provided to cover the gaps between the plurality of arm portions 66b of the reel disc 66 located on the uncut side where the uncut crop is located, that is, the left side, of the reel disc 66 on the left and right sides during the cutting operation. Yes.

  The cover member 80 is provided over the entire circumference so as to cover the laterally open portions of the plurality of reel disks 66. The cover member 80 is made of a synthetic resin material having permeability, so that a driver who is operating in the operation unit 7 can visually confirm the outer left side of the cover member 80.

  As shown in FIGS. 3, 12, and 13, the cover member 80 includes six divided cover bodies 80 a divided in the circumferential direction, and the end portions of the adjacent divided cover bodies 80 a are overlapped to form a reel disk 66. Bolts are connected in a tightened state at a mounting portion 81 corresponding to the arm portion 66b. Further, a plate-like connecting plate 82 for connecting the tops of the adjacent arm portions 66b of the reel disk 66 is extended laterally, and adjacent extending portions 82a are separated in the extended portion 82a located on the lateral side. The ends of the cover body 80a are overlapped and bolted.

[Another embodiment]

(1) In the above embodiment, the tine support rod 67 includes two first support rods 67A that support only the first tine 68A and one second support rod 67B that supports only the second tine 68B. The second support rod 67B is configured to have a larger number than the first support rod 67A. However, instead of this configuration, the first support rod 67A may be configured to have a greater number than the second support rod 67B. Alternatively, all of the six tine support rods 67 may be provided with a tine 68, and in this case, the first support rod 67A and the second support rod 67B may have the same configuration of three each, It may be implemented with various changes such as a configuration in which the number of devices is large.

(2) In the above embodiment, the tine 68 scrapes the crop backward by passing through the gap between the first tine 68A capable of scratching the crop received by the receiving member 43 backward and the receiving member 43. The second tine 68B can be included, but it may be configured to include only the first tine 68A. Moreover, the structure which equips each tine support rod 67 with the 1st tine 68A and the 2nd tine 68B may be sufficient.

(3) In the said embodiment, although the wide clearance gap 61 was provided in the edge part of a cutting width direction, it was good also as a structure provided in the state located between the receiving members located in the middle of the cutting width direction. . It is good also as a structure provided with two or more wide clearance gaps 61. FIG.

(4) In the above-described embodiment, the receiving member 43 is configured by a corrugated plate member. However, for example, the receiving member 43 may be configured by a flat plate member, or may be configured by an arc-shaped plate member. Also good. That is, the shape and material of the receiving member 43 are not limited to the shape and material according to the above embodiment, and various shapes and materials can be employed.

(5) In the above embodiment, the tine 68 has a T-shaped cross section, but it may be constituted by a claw-type tine.

(6) In the above embodiment, the tine 68 is formed of a metal member, but may be formed of a resin member.

(7) In the above embodiment, the metal guide plate 50 is provided. However, the guide plate may be a transparent plate, or may be formed of a punching metal, a wire mesh, a lattice, or the like.

(8) In the above embodiment, an operation mode for harvesting corn as a crop is assumed, but an operation mode for harvesting crops such as rice, wheat, buckwheat, and soybeans may be used.

  INDUSTRIAL APPLICABILITY The present invention can be used for a harvesting device provided in a combine that harvests crops such as rice, wheat, buckwheat, soybean, and corn.

42 Picking reel 43 Receiving member 44 Cutting device 48 Transport deck 61 Wide gap 62 Narrow receiving member 62a Upper end
67 support member 67A first support member 67B second support member 68 tine 68A first tine 68B second tine

Claims (7)

A scraping reel having a plurality of tines acting on the planted crop, a mowing device for cutting the planted crop, a transport deck for receiving and transporting the harvested crop, and the mowing device passing above the mowing device A plurality of receiving members that extend to the front side and are provided at intervals through which the stems of planted crops can pass in the cutting width direction,
The harvester is provided so that the tine passes above the receiving member and is able to scrape the crop received by the receiving member backward.   The tine has a first tine capable of scraping the crop received by the receiving member backward and a gap that is longer than the first tine and between the plurality of receiving members and moves the crop backward. The harvesting device according to claim 1, further comprising a second tine capable of being scraped. A plurality of support members extending along the cutting width direction and supporting the plurality of tines at intervals in the cutting width direction are provided on the scraping reel at intervals in the circumferential direction.
The harvesting device according to claim 2, wherein the support member includes a first support member that supports only the first tine and a second support member that supports only the second tine.   The harvesting device according to claim 3, wherein the second support member has a larger number than the first support member. A part of the plurality of gaps formed between the receiving members is formed as a wide gap having a wider width in the cutting width direction than the other gaps,
The harvesting device according to any one of claims 1 to 4, wherein a narrow receiving member extending in the front-rear direction and narrower in a cutting width direction than the receiving member is provided in the wide gap.   The front end portion of the narrow receiving member is positioned on the rear side of the machine body from the front end portion of the receiving member, and the upper end portion of the narrow receiving member is positioned above the guide portion of the receiving member. Item 6. The harvesting device according to Item 5.   The harvesting device according to claim 5 or 6, wherein the wide gap is formed at an end portion of the transport deck in a cutting width direction.

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