JP5697944B2 - Combine - Google Patents

Description

  The present invention relates to an ordinary combine that has a scraping reel provided with a large number of tines and harvests while scraping the cereal with the scraping reel.

  Conventionally, there exists what was disclosed by patent document 1 as one form of a normal type combine. Such a combine has a cutting part, and the cutting part was cut by the cutting blade, the cutting blade that cuts the root part of the culm that was scraped by the scraping reel, and the cutting blade. It includes a platform on which a scraping auger that is laterally fed while scraping the cereal and a feeder house having a built-in conveyor that transports the cereal that has been laterally fed by the scraping auger to the rear.

  The scraping reel is rotatably supported between the distal ends of a pair of left and right reel support arms via a reel support shaft. The scraping reel includes a pair of left and right rotation supports, a plurality of tine bars installed between the two rotation supports, and a plurality of tines attached to each tine bar. In the tine, a pair of tine pieces and a connecting piece for connecting upper ends of both tine pieces are integrally formed by a single round bar. That is, a pair of tines are formed in a bifurcated shape. The connecting piece is formed by being curved substantially along the peripheral surface of the tine bar, so that the tine bar can be detachably engaged with the peripheral surface of the tine bar in a fitted state, and a pair of tine main pieces can be attached to and detached from the tine bar. I can do it. A tine connecting piece is covered with the tine cover by attaching a cylindrical tine cover having a slit in the longitudinal direction to the tine bar while being elastically deformed in the direction in which the slit opens and closes. In this way, it is possible to easily attach the tine to the tine bar, and to prevent the trash from being entangled with the connecting piece.

JP 2009-39025 A

  However, in the tine mounting structure described above, when the tine piece is damaged, the work of removing the tine piece from the tine bar is complicated. That is, when removing the tine main piece, first, by removing the tine cover from the tine bar, exposing the connecting piece of the tine and releasing the engaging piece engaged with the tine bar, The tine is removed. At this time, since the connecting piece is firmly fitted to the peripheral surface of the tine bar so as not to easily fall off from the tine bar, it is necessary to prepare a dedicated tool for releasing the engagement. For this reason, the tine removal work is complicated from this point.

  Then, an object of this invention is to provide the combine which can perform the attachment / detachment (detachment | attachment) operation | work of the tine to a tine bar simply and rapidly.

  The combine according to the first aspect of the invention is a combine provided with a harvesting unit that harvests cereals planted in a field with a cutting blade device while scraping with a scraping reel, and the scraping reel is a pair of rotational supports. Body, a plurality of tine bars laid horizontally between the peripheral portions of both rotating supports, and a plurality of tines attached to each tine bar in a suspended manner and acting on the culm, and the tine acts on the culm A tine piece, a concave fitting piece that extends to the base end of the tine piece and fits to the peripheral surface of the tine bar to maintain the posture, and a tine bar that extends to the fitting piece and is formed on the tine bar A locking piece that is inserted into the locking hole so as to be freely inserted into and pulled out from the locking hole is integrally formed by bending a single round bar, and is detachably attached to the tine bar.

  In such a combine, the tine can be firmly attached to the tine bar in a suspended state by fitting the fitting piece to the peripheral surface of the tine bar and locking the locking piece in the locking hole. Further, the tine can be easily and quickly removed from the tine bar by releasing the fitting state by the fitting piece and extracting the locking piece from the locking hole. At this time, attachments such as bolts and nuts are not required.

  The combine which concerns on invention of Claim 2 is a combine which concerns on invention of Claim 1, Comprising: The said fitting piece fits in the surrounding surface of a tine bar from the direction opposite to the direction in which a tine stirs into a grain straw. In addition, the locking piece is inserted into the locking hole and locked from above, which is substantially perpendicular to the fitting direction of the fitting piece.

  In such a combine, even when the tine scratches the field, the load on the tine acts in the fitting direction of the fitting piece, so that the fitting piece is not likely to come off the tine bar.

  The combine which concerns on invention of Claim 3 is a combine which concerns on invention of Claim 1 or 2, Comprising: While the said tine is integrally formed with a spring steel material, the said fitting piece is on the surrounding surface of a tine bar. It is characterized by being curved along a concave shape and having an opening with a fitting opening that is equal to or smaller than the outer diameter of the tine bar.

  In such a combine, the fitting to the tine bar by the fitting piece made of spring steel material can be made solid, so that the tine's posture maintenance and the tine's scraping efficiency into the cereal can be secured well. Can do.

  The combine which concerns on invention of Claim 4 is a combine which concerns on invention of any one of Claims 1-3, Comprising: The said cutting blade apparatus is a sawtooth-shaped cutting blade extended in the width direction of a body, A receiving blade that receives the cutting blade, and the receiving blade is formed in a tapered shape having a cereal guide piece at the tip and protrudes in the forward direction of the machine body, and is arranged with an interval in the width direction of the machine body, Each of the tines is arranged approximately above the center between adjacent cereal guide pieces.

  In such a combine, since each tine is disposed substantially above the center between adjacent culm guide pieces, it is possible to smoothly and steadily scrape the planted culm with each tine, and to perform subsequent cutting. The cutting operation of the planted portion of the planted cereal with the blade device can be performed smoothly.

  The present invention has the following effects. In other words, the present invention has a fitting piece that is fitted to the peripheral surface of the tine bar and a locking piece that is removably inserted into and locked into a locking hole formed in the tine bar. The attachment / detachment (detachment) work of the tine to the tine bar can be performed easily and quickly without using a mounting tool such as the above. Moreover, since the tine is attached individually and a connecting piece for connecting a pair of tine pieces is not provided as in the prior art, the problem of tangled straw dust or the like on the connecting piece can be solved. Therefore, other parts such as a tine cover can be eliminated.

The left view of the normal type combine which concerns on this invention. The right view of the normal type combine which concerns on this invention. The side view of a cutting part. The front view of a cutting part. The top view of a cutting part. The perspective view from the outer surface side of a rotation support body. The perspective view from the inner surface side of a rotation support body. The front view (outer side view) of a rotation support body. The rear view (inner side view) of a rotation support body. The left view of a rotation support (front end view). The top view (upper end figure) of a rotation support body. The bottom view (lower end view) of a rotation support. FIG. 9 is a cross-sectional view taken along the line II of FIG. II-II sectional view taken on the line of FIG. The disassembled perspective view which shows the attachment structure of the tine bar to a rotation support body. The perspective view of a tine. Front view of the tine (outside view). The rear view (inside view) of a tine. Left side view of tine (front view). Tyne's right side view (rear view). The top view (top view) of a tine. Bottom view (bottom view) of the tine. The tine attachment explanation perspective view. The tine attachment explanation top view. Tyne posture holding explanatory diagram.

  Embodiments of the present invention will be described below in detail with reference to the drawings.

  As shown in FIGS. 1 and 2, the combine 1 has a machine body 3 disposed immediately above a pair of left and right crawler type traveling units 2, and a cutting unit 4 is attached to the front of the machine body 3. In the airframe 3, the threshing unit 5 and the sorting unit 6 are arranged on the left side in the upper and lower stages, and the waste disposal unit 7 is arranged in the right side thereof, while the driving unit 8, the grain storage unit 9 and the prime mover unit are arranged on the right side. 10 are sequentially arranged in the front-rear direction. Reference numeral 11 denotes an engine provided in the prime mover unit 10, reference numeral 12 denotes an unloading body for bagging provided in communication with the grain storage unit 9, and reference numeral 13 denotes an output auger provided in communication with the grain storage unit 9.

  The cutting unit 4 includes a feeder house 20, a platform 21, a cutting blade device 22, a pair of left and right dividers 23 and 23, and a scraping reel 24.

  Specifically, as shown in FIGS. 3 to 5, the feeder house 20 is formed in a rectangular cylinder shape extending in the front-rear direction, and a conveyor conveyer (Fig. (Not shown). The feeder house 20 is arranged on the lower left side of the operation unit 8 and a rear end portion is pivotally supported on the front portion of the machine body 3 so as to be movable up and down, and the elevation position can be adjusted by the elevation hydraulic cylinder 26.

  The platform 21 is formed in a casing shape that is substantially the same width as the left and right width of the machine body 3 and has a front opening. The platform 21 is connected to the front end opening (carrying inlet) of the feeder house 20 at the left side, and the left and right sides are internally connected. The take-up auger 25 with the pivot axis oriented to the side is horizontally mounted. The scraping auger 25 scrapes the cereals harvested by a cutting blade device 22 described later into the platform 21 and feeds it horizontally into the front end opening (feeding port) of the feeder house 20.

  The cutting blade device 22 is formed in a clipper shape extending in the left-right direction, and is disposed in the lower portion of the front end of the platform 21 over the entire width of the front end. Then, the planted portion of the planted cereal is harvested.

  The pair of left and right dividers 23, 23 project forward from the left and right side walls of the platform 21, respectively, so that the planted cereals are divided into a cutting side and a non-cutting side as the aircraft moves forward. .

  The scraping reel 24 is disposed above the pair of left and right dividers 23 and 23 so as to be able to rotate and rotate, and the planted culm on the harvesting side cut by the dividers 23 and 23 is rotated to the platform 21 side. I'm trying to scratch it.

  The cutting unit 4 configured as described above divides the planted cereals that have been weeded by the pair of left and right dividers 23, 23, and scrapes the planted cereals that have been sown by the scraping reel 24. At the same time, the stocked portion of the planted cereal that has been scraped is cut by the cutting blade device 22 and scraped into the platform 21. Then, the cereals scraped into the platform 21 are laterally fed into the front end opening portion (inlet portion) of the feeder house 20 by the rake auger 25, and further, the whole cereals are transported in the feeder house 20. It carries in (throws in) the threshing part 5 arrange | positioned by the back body 3 with the conveyor.

  Next, the configuration of the scraping reel 24 will be specifically described. That is, as shown in FIGS. 3 to 5, the scraping reel 24 lays the arm support shaft 30 with its axis line in the left-right direction on the upper rear end of the platform 21. The left and right end portions of the arm support shaft 30 pivotally support the base end portions (rear end portions) of the pair of left and right support arms 31 and 31 extending in the front-rear direction. A reel raising / lowering cylinder 32 is interposed between the middle part of each supporting arm 31 and the side wall of the platform 21 so that both the supporting arms 31 and 31 can be raised and lowered around the arm support shaft 30.

  Between the front end portions (front end portions) of both the support arms 31, 31, a reel support shaft 33 extending in the left-right direction is rotatably supported around its axis, and the reel support shaft 33 is paired with a leading end in the front-rear direction. The position is adjustable. A pair of left and right rotation supports 34, 34 are opposed to the left and right ends of the reel support shaft 33 so that the center portions thereof are attached. Both rotary supports 34, 34 are formed of a metal plate-like body in a regular pentagon shape, and are pipes extending in the left-right direction via tine bar pivots 35 between the left and right corners (tops). A (circular tube) tine bar 36 is laid horizontally so as to be rotatable about its axis.

  A plurality of tines 37 are attached to each tine bar 36 in a hanging manner with a certain interval in the left-right direction. On the outer side of the right rotation support member 34, a tine posture holding rotation support member 38 that rotates about an axis that is deviated from the axis of the reel support shaft 33 is disposed.

  The tine posture holding rotation support 38 is formed in substantially the same shape as the rotation support 34, and a link pivot 39 is attached to each corner (top), and the tine bar 36 adjacent to the link pivot 39 is attached. Are connected via a link 40 to form a tine posture holding mechanism 41.

  In this way, the tine posture holding mechanism 41 holds at least a tine 37 that acts on the planted cereal among the tines 37 that rotate and holds the tine 37 held in the hanging posture. It works to stir the planted cereal.

  Between the right end of the arm support shaft 30 and the right end of the reel support shaft 33, a transmission mechanism 42 linked to the engine 11 is provided so that the reel support shaft 33 is opposite to the left view of FIG. It is made to rotate clockwise R.

  Thus, when the reel support shaft 33 is rotated counterclockwise R in the left side view of FIG. 25, the pair of left and right rotation supports 34, 34 attached to the reel support shaft 33 are also rotated counterclockwise R. Then, the tine 37 attached between the rotary supports 34 and 34 via the tine bar 36 moves around the outer periphery of the rotary support 34. At this time, each tine 37 is moved while maintaining the suspended posture by the tine posture holding mechanism 41, and the tine posture is firmly raked into the planted cereal.

  Next, the attachment structure of the tine bar 36 and the attachment structure of the tine 37 will be specifically described.

(Tyne bar 36 mounting structure)
First, the rotation support 34 that directly supports the tine bar 36 will be described with reference to FIGS. The rotary support 34 is formed with a circular port 50 at the center of a thin metal plate formed in a regular polygon (in this embodiment, a regular pentagon), and five inverted triangular ports 51 are substantially equal around the circular port 50. Are formed at intervals.

  The outer-shaped rotation support 34 is a ring-shaped hub that is attached to the reel support shaft 33 by embossing the outermost part excluding the five corners (tops) 52 into ridges outward. The part 53, the five spoke parts 54 that extend straight from the hub part 53 in the radial direction, and the straight connection part 55 that connects the tips of the spoke parts adjacent in the circumferential direction are integrally molded. Yes. Reference numeral 56 denotes a concave strip portion that is elongated in the longitudinal direction at the center portion of the spoke portion 54 and embossed. In this way, the number of components of the rotary support 34 is reduced, and the weight and the rigidity are increased.

  The corner (top) 52 is formed as a connecting plate-like piece 52 a whose outer surface is positioned inward with respect to the outer surfaces of the spoke part 54 and the connecting part 55 and forms a stepped concave surface. And the tine bar arrangement | positioning recessed part 52b for arrange | positioning the side edge part of the tine bar 36 is formed in the middle part of the connecting plate-shaped piece 52a, and the tine bar arrangement | positioning recessed part 52b opens to a radiation direction and the left-right side. It is formed in a concave shape. Reference numeral 52c denotes a bolt hole formed by opening the connecting plate-like piece 52a in the left-right direction, and is formed at two locations with a tine bar disposition recess 52b interposed therebetween.

  As shown in FIG. 15, a side end portion of the tine bar 36 is detachably attached to the connecting plate-like piece 52 a of the corner portion (top portion) 52 via a tine bar pivotal support body 35.

  That is, the tine bar support 35 includes a cylindrical boss portion 61 that supports the tine bar 36 so as to be rotatable about its axis, and a pair of connecting ears that project outward from the outer peripheral surface of the boss portion 61. The pieces 62 and 62 are formed. And as shown in FIG. 24, the outer peripheral surface of the boss | hub part 61 located in the inner surface side of both the connection ear pieces 62 and 62 is the peripheral part of the connection plate-shaped piece 52a which forms the recessed part 52b for tine bar arrangement | positioning. An insertion groove 61a is formed for inserting the. One side wall of the insertion groove 61a is formed with connection ear pieces 62, 62. When the tine bar pivotal support body 35 is inserted into the tine bar arrangement recess 52b via the insertion groove 61a, the connection plate-like piece is formed. The inner side surfaces of the connecting ear pieces 62, 62 are brought into surface contact with the outer surface of 52a so as to be superposed on the inner and outer sides. At this time, bolt holes 62a and 62a that open in the left-right direction are formed in the connecting ear pieces 62 and 62, and these bolt holes 62a and 62a are connected to the bolt holes 52c and 52c formed in the connecting plate-like piece 52a. They are aligned in the left-right direction.

  Therefore, the connecting bolt 63 is inserted into the aligned bolt holes 52c and 62a from the outside and the nut 64 is screwed to the tip of the connecting bolt 63, so that the side end of the tine bar 36 is attached to the connecting plate-like piece 52a. The inserted tine bar pivot 35 can be attached. At this time, a through hole 70 is formed in a side end portion of the tine bar 36 in a direction perpendicular to the axis of the tine bar 36. The side end portion of the tine bar 36 is inserted into the boss portion 61 of the tine bar pivotal support body 35 so that the boss The through hole 70 is disposed outward from the outer end surface of the portion 61, and the retaining pin 71 is inserted into the through hole 70, and the retaining pin 71 is applied to the outer end surface of the boss portion 61 via the washer 72. By making contact, the tine bar 36 can be prevented from coming off the tine bar pivot 35. Moreover, the tine bar 36 can be removed from the connecting plate-like piece 52a by following the reverse procedure. As a result, the side end portion of the tine bar 36 can be easily and detachably attached to the connecting plate-like piece 52 a via the tine bar pivotal support 35.

  Moreover, by connecting the tine bar pivotal support body 35 to the connecting plate-like piece 52a from the side via the tine bar disposition recess 52b, the protrusions such as attachment parts are formed in the radial direction from the peripheral end surface of the rotary support 34. It can be avoided that it is formed. Therefore, it is possible to prevent the occurrence of a problem that the cedar is caught on the protrusions on the rotary support 34 and the cutting efficiency is reduced.

  Further, the outer surface of the connecting plate-like piece 52a is a stepped concave surface located inward with respect to the outer surfaces of the spokes 54 and the connecting portion 55, and the outer surface of the connecting plate-like piece 52a. Since the tine bar pivot support 35 is connected in the left-right superposition state, the mounting member or the like does not protrude greatly on the outer side of the rotation support 34 as well as the radiation direction of the rotation support 34. It is possible to avoid the planted cereal from being caught.

(Tine 37 mounting structure)
A tine 37 is detachably attached to the tine bar 36 one by one. That is, as shown in FIGS. 16 to 22, the tine 37 is formed by bending a tine main piece 80 acting on the cereal and a base end portion (upper end portion) 80 a of the tine main piece 80 so as to be bent like a string. The coil portion forming piece 81, a concave fitting piece 82 that extends from the coil portion forming piece 81 and fits to the peripheral surface of the tine bar 36 to maintain the posture of the tine main piece 80, and extends to the fitting piece 82 And a locking piece 83 that is inserted and locked in a locking hole 73 formed in the tine bar 36 so as to be freely inserted and removed, and is formed integrally by bending a single round bar material made of spring steel. ing.

  The tine piece 80 is formed by extending in the vertical direction, and the lower part is formed by bending forward into a convex shape ("<" shape). The tine main piece 80 maintains a posture in which the tine main piece 80 hangs vertically downward from the tine bar 36 so that the tine main piece 80 acts to drive the planted cereal into the platform 21.

  The coil portion forming piece 81 extends the base end portion (upper end portion) 80a of the tine main piece 80 toward the front upper side, and at the front position of the base end portion 80a of the tine main piece 80, a double ring string winding It is bent in a shape. The inner diameter of the double ring is substantially the same as the outer diameter W1 of the tine bar 36 (see FIG. 25). The coil portion forming piece 81 is integrally formed with the proximal end portion 80a of the tine main piece 80 that acts on the planted cereal from the front to the rear, and receives the reaction F from the rear to the front by the planted cereal. The piece 80 is elastically biased so as to maintain the hanging posture.

  The fitting piece 82 is formed by bending in a semicircular arc shape that bulges backward. That is, the tine main piece 80 is extended upward from the position of the base end portion 80 a of the tine piece 80, and is extended in a curved shape along the back surface (second half peripheral surface) of the tine bar 36. It is extended to a position slightly ahead of the position of the end 80a. A fitting opening 84 is formed by the tip end portion 82 a of the fitting piece 82 and the upper end portion 81 a of the coil portion forming piece 81. Here, as shown in FIG. 25, the opening width W2 of the fitting opening 84 is formed to be equal to or smaller than the outer diameter W1 of the tine bar 36, and the semicircular arc diameter W3 of the fitting piece 82 is equal to or larger than the outer diameter W1 of the tine bar 36. Forming.

  Thus, the fitting piece 82 is the direction in which the tine 37 receives the reaction F from the rear to the front by the planted culm (the direction opposite to the direction in which the tine 37 is squeezed). It is made to fit on the peripheral surface of the tine bar. At this time, the opening width W <b> 2 of the fitting opening 84 is formed to be equal to or smaller than the outer diameter W <b> 1 of the tine bar 36. Therefore, the fitting opening 84 has the same diameter as the outer diameter of the tine bar 36 against the elastic biasing force of the tip end portion 82a of the fitting piece 82 and the upper end portion 81a of the coil portion forming piece 81 formed of spring steel. Thus, the fitting piece 82 can be fitted to the tine bar 36 from the rear, and the tine bar 36 by the fitting opening 84 can be clamped and urged from above and below. Therefore, the fitting piece 82 can be firmly fitted to the tine bar 36 and held in the same state.

  The locking piece 83 extends in a curved shape so that the distal end portion 82a of the fitting piece 82 is U-turned backward in the same plane, and is bent vertically downward substantially at a right angle so that the distal end portion forms a coil portion. The piece 81 is formed to extend straight so as to reach the side position of the upper end 81a. Here, the base end portion (upper end portion) 80a of the locking piece 83 and the tine main piece 80 is disposed on substantially the same axial line in a side view as shown in FIG. Then, the locking piece 83 is inserted into the locking hole 73 formed in the tine bar 36 from above, which is substantially perpendicular to the fitting direction of the fitting piece 82 (the direction in which the fitting piece 82 is fitted substantially horizontally from the rear to the front). To be locked.

  By forming the tine 37 in this manner, even when the tine 37 scratches the field, the load (reaction F) on the tine 37 acts in the fitting direction of the fitting piece 82. There is no risk of detachment from the tine bar 36. And since the fitting to the tine bar 36 by the spring steel material fitting piece 82 can be made steady and the same state can be maintained, the posture maintenance of the tine 37 and the scraping efficiency of the tine 37 into the culm Can be secured satisfactorily.

  Next, a method for attaching the tine 37 to the tine bar 36 will be described with reference to FIGS.

  As shown in FIGS. 23 and 24A, the locking piece 83 is inserted into the locking hole 73 from above. At this time, the coil portion forming piece 81 is disposed below the tine bar 36. That is, the fitting opening 84 is positioned so as to open in the axial direction (left-right direction) of the tine bar 36.

  Subsequently, as shown in FIGS. 23 and 24B, the coil portion forming piece 81 is rotated forward by 90 ° about the locking piece 83 whose axis is directed in the vertical direction. At this time, since the fitting opening 84 is fitted to the peripheral surface of the rear half of the tine bar 36 in an elastically biased state, the locking piece 83 can be prevented from coming out upward.

  In this way, the tine 37 can be easily and firmly attached to the tine bar 36. On the other hand, the tine 37 can be easily removed from the tine bar 36 by following the procedure. At this time, attachments such as bolts and nuts are not required.

  Next, the attachment position of the tine 37 to the tine bar 36 will be described. Since the attachment position is related to the relative relationship between the tine 37 and the grain guide piece 91b of the cutting blade device 22, the cutting blade device 22 is first described for convenience. The configuration will be described.

  As shown in FIGS. 3 and 5, the cutting blade device 22 has a cutting blade base 90 extending to the front lower end edge of the platform 21 extending over the front width of the left and right widths, and a plurality of receiving blades 91 are attached to the cutting blade base 90. A cutting blade 92, which projects forward (in the forward direction of the machine body) and extends in the left-right direction on the receiving blade 91 and has a front edge formed in a saw blade shape, reciprocally slides with a constant width in the left-right direction. By doing so, the planted portion of the planted cereal cocoon is cut by the interaction between the cutting blade 92 and the receiving blade 91. The receiving blade 91 extends from the receiving blade main piece 91a at the base end portion (rear end portion) and the culm guide piece 91b at the distal end portion (front end portion) in the front-rear direction, and is tapered forward. Yes. And many receiving blades 91 are arrange | positioned at predetermined intervals in the left-right width direction, respectively, and the planted grain culm stock between the culm guide pieces 91b, 91b of the receiving blades 91, 91 adjacent to the left and right The stock is guided by the cutting blade 92. A sliding groove (not shown) is formed in the receiving blade main piece 91a, and the cutting blade 92 slides in a transverse manner in the sliding groove.

  As shown in FIG. 5, which is a plan view, the tine main piece 80 of the tine 37 is aligned with a virtual line K indicating a substantially central position between the grain guide pieces 91 b and 91 b adjacent to the left and right in a plan view. It is arranged. In addition, a large number of tines 37 are attached to each tine bar 36 at intervals in the left-right direction, and the tines 37 attached to the adjacent tine bars 36 are attached with a shift of a half pitch. That is, if the spacing between the left and right cereal guide pieces 91b, 91b is a pitch P, the tines 37 (specifically, the tine main pieces 80) attached to each tine bar 37 have a pitch P of two. The tines 37 (specifically, the tine main piece 80) attached to the adjacent tine bars 37 are opened at a pitch P of one.

  In this way, since each tine 37 is disposed substantially above the middle portion between the left and right adjacent grain guide pieces 91b, 91b, the vine 37 is scraped smoothly and firmly by each tine 37. . Then, the cutting of the planted cereal culm by the subsequent cutting blade device 22, and further, each of the scraping and transporting operations by the scraping auger 25 is performed smoothly.

1 Combine 24 Stir reel 33 Reel spindle 34 Rotating support 35 Tyne bar pivot 36 Tine bar 37 Tine

Claims (4)

A combine equipped with a cutting part that cuts cereal grains planted in a field with a cutting blade device while scraping with a reel.
The scraping reel includes a pair of rotary supports, a plurality of tine bars that are horizontally mounted between the peripheral portions of the rotary supports, and a plurality of tines that are attached to the tine bars in a hanging manner and act on the culm. And
The tine includes a tine piece that acts on the cereal, a concave fitting piece that extends from the base end portion of the tine piece and fits to the circumferential surface of the tine bar to maintain the posture, and extends to the fitting piece. A locking piece that is inserted and locked in a locking hole formed in the tine bar so as to be freely inserted and removed is integrally formed by bending a single round bar, and is detachably attached to the tine bar. Combine that is characterized by that. The fitting piece is fitted to the peripheral surface of the tine bar from the direction opposite to the direction in which the tine scratches the grain straw,
The combine according to claim 1, wherein the locking piece is inserted into the locking hole and locked from above, which is substantially perpendicular to the fitting direction of the fitting piece.   The tine is formed integrally with a spring steel material, and the fitting piece is formed to be curved in a concave shape along the circumferential surface of the tine bar, and the fitting port to be opened is less than the outer diameter of the tine bar. The combine according to claim 1 or 2. The cutting blade device comprises a sawtooth cutting blade extending in the width direction of the fuselage, and a receiving blade for receiving the cutting blade,
The receiving blade is formed in a tapered shape having a cereal guide piece at the tip and protrudes in the forward direction of the machine body, and is arranged with an interval in the width direction of the machine body,
The combine according to any one of claims 1 to 3, wherein each of the tines is disposed above a substantially central portion between adjacent cereal guide pieces.

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