JP2010246433A - Binding device of combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a binding device of a combine harvester, which does not require a complicated operation, has a simple structure and performs adjustment of an amount of waste straws to be bound and adjustment of binding or not binding of waste straws. <P>SOLUTION: In the binding device 30 including a packer 51 for raking waste straws in a bundling space S, a door 52 for holding a prescribed amount of waste straws in the bundling space S, a needle 53 for winding a binding string 54a on a prescribed amount of waste straws, a knotting part 55 for knotting the binding string 54a wound on the waste straws, and a release arm 56 for releasing the bound waste straws, the rotary base part 52a of the door 52 is constituted into a cylinder form, the cross sectional shape of the internal periphery of the rotary base part 52a is formed to be a polygon or a shape having a plurality of grooves, a part of the outer periphery of a door shaft 152 onto which the rotary base part 52a is fitted is formed to be a polygon or a shape having a plurality of projection forms in accordance with the cross sectional shape of the internal periphery of the rotary base part 52a so as to change a connection angle between the door 52 and the door shaft 152. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a combine technique. More specifically, the present invention relates to a structure of a binding device that is provided at the rear portion of the combine and discharges the waste after being bound by a binding string.

  Conventionally, the technique of the binding apparatus which binds the waste after threshing with the combine threshing apparatus with a binding string is known. One of the bundling devices includes a knot portion and a discharge arm on the upper side of the bundling space that accommodates the waste that has been conveyed from the threshing device in a sideways posture, and the packer and bundling are located below the bundling space. Some have a string supply needle or the like, and have a discharge pressure sensing door on the outlet side of the binding space.

  Generally, the bundling device is arranged behind the severing and cutting device. The waste cutting device is a device for cutting and discharging the waste into a predetermined length. The waste is supplied to either the binding device or the waste cutting device when the cutting switch cover is opened and closed. When the waste is supplied to the binding device, the waste is discharged after being bound. Further, when the waste is supplied to the waste cutting device, the waste is discharged after being cut to a predetermined length.

Generally, the amount of waste to be bound is adjusted by adjusting the space on the front side of the door by changing the position (angle change) of the door of the binding device and adjusting the amount of waste retained in that space. is there.
In order to adjust the front space of the door, it is necessary to remove the door attached by a fixing tool such as a bolt and a nut from the door shaft. In other words, the fixture that attaches the door to the door shaft is removed once with a tool, etc., the door angle is changed, and the door angle is changed again by attaching it to the door shaft to adjust the amount of waste accumulated in the space. ing.

  Further, as shown in Patent Document 1, a sliding plate that can move up and down is provided in a part of a knotter case (binding mission case), and the door pressure by the bundling bundle bundled on the front of the door is provided inside the sliding plate. An urging member for returning the door against the above is disposed. The technology of a combine bundling device that can adjust the urging force of the urging member by moving the slide plate up and down, adjust the door pressure, and obtain a bundling bundle with a desired amount of waste has become known. Yes.

Japanese Patent Laid-Open No. 10-150830

However, the configuration in which the parts of the binding device are removed (or the arrangement is changed) as described above is disadvantageous in that the work such as removal is complicated and the work efficiency is lowered. And it was disadvantageous in that the removed parts could be lost, and it was necessary to secure a space for storing the removed parts and the binding device.
In addition, when a device for adjusting the door pressure is specially provided, it is disadvantageous in that the number of members increases and the structure of the binding machine becomes complicated.

  The present invention has been made in view of the problems as described above, and does not require complicated work, and with a simple structure, adjusts the amount of waste to be bound and whether to perform waste binding. An object of the present invention is to provide a combine binding device that can be used.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

  That is, according to the first aspect, the packer for scraping the waste into the converging space, the door for holding the predetermined amount of waste in the converging space, the needle for winding the binding string around the predetermined amount of waste, In a binding device comprising a knot portion that knots a binding string wound around and a discharge arm that discharges the bound waste, the rotating base portion of the door is configured in a cylindrical shape, and the inner peripheral cross section of the rotating base portion A polygonal shape is formed, and a part of the outer periphery of the door shaft on which the rotating base is fitted is formed into a polygon matching the inner peripheral cross-sectional shape of the rotating base, and the fitting angle between the door and the door shaft Is configured to be changeable.

  According to a second aspect of the present invention, a packer for scraping the waste into the converging space, a door for holding a predetermined amount of waste in the converging space, a needle for winding a binding string around the predetermined amount of waste, and a wound around the waste In a binding device comprising a knot portion for knotting the binding string and a discharge arm for discharging the bundled waste, the rotation base portion of the door is formed in a cylindrical shape, and the inner periphery of the rotation base portion is axially arranged A plurality of grooves are formed, and a part of the outer periphery of the door shaft on which the rotating base is fitted is formed in a protruding shape that matches the inner peripheral cross-sectional shape of the rotating base, and the fitting angle between the door and the door shaft is set. It is configured to be changeable.

  In Claim 3, in the rotation base part of the door, a fitting part formed in a polygon or a groove is formed on one side in the inner peripheral axial direction, and a spring receiving part having a larger diameter than that of the fitting part on the other side. A drive part that fits with the fitting part is formed on one side of the door shaft, and a spring outer fitting part having a reduced diameter is formed on the other side, and the spring receiving part and the spring outer fitting are formed. An urging member is provided inside the unit, and the door is urged in the fitting direction.

  As effects of the present invention, the following effects can be obtained.

  Since it comprised like Claim 1, it becomes possible to change and set now to an arbitrary angle easily by sliding a door with respect to a door axis | shaft, and canceling | releasing fitting, and can change the amount of waste to bind. . Further, by turning the door downward, it is possible to make the drainage into a drooping state, and the working mode can be easily changed. Moreover, the structure for adjusting the angle of the door can be simplified.

  Since it comprised like Claim 2, it becomes possible to change and set now to an arbitrary angle easily by sliding a door with respect to a door axis | shaft, and canceling | releasing fitting, and can change the amount of waste to bind. . Further, by turning the door downward, it is possible to make the drainage into a drooping state, and the working mode can be easily changed. Moreover, the structure for adjusting the angle of the door can be simplified.

  Since it was constituted as in claim 3, the angle can be adjusted by rotating the door without using a tool or the like. This makes it possible to change the amount of waste to be bundled by performing simple operations without having to perform complicated operations such as removing parts from many bundling devices and removing the door itself. Can be prevented.

The side view which shows the whole structure of the combine which concerns on this invention. The plane schematic diagram which shows the structure of a waste disposal apparatus. Similarly side view. The side view which shows the structure of a binding apparatus. The partial cross section rear view which shows the state of the door attached to the door axis | shaft. FIG. 6 is an end view taken along line BB showing various cross-sectional shapes of the rotation base and the drive unit in FIG. 5. The figure which showed angle adjustment of the door which concerns on this invention, (a) When a waste bundle is a small bundle, (b) When a waste bundle is a large bundle, (c) When a waste is not bundled. (A) The figure which shows the state which the fitting part and the drive part fitted, (b) The figure which shows the state from which the fitting part removed from the drive part.

Below, combine 1 which is one embodiment of a combine concerning the present invention is explained with reference to drawings.
For the sake of explanation, the direction of the arrow A in the figure is defined as “front”, and the left, right, and rear are determined toward the front.

First, a schematic configuration of the combine 1 will be described with reference to FIGS. 1 and 2.
The combine 1 harvests cereals, and more specifically, harvests cereals from the field while running through the field and threshes the grains. The combine 1 of this embodiment is a self-decomposing combine that threshes only the head portion with a grain among the harvested cereals.
The combine 1 mainly includes a reaping device 2, a threshing device 3, a sorting device 4, a waste disposal device 5, and the like.

  The reaping device 2 is disposed in the front portion of the combine 1 and mainly includes a pulling device, a lower transport device, a tip transport device, a cutting blade, and the like. The reaping device 2 harvests the cereal from the field and passes the cereal to the threshing device 3.

  The threshing device 3 is disposed behind the reaping device 2, and mainly includes a feed chain 3a, a handling cylinder 3b, and the like. The threshing device 3 separates the cereal grains from the culm by the rotation of the barrel 3b while conveying the cereals received from the reaping device 2 sideways with the feed chain 3a from the front to the rear. )

  The sorting device 4 is arranged below the threshing device 3 and separates swarf and dust mixed with the grains threshed by the threshing device 3 by wind sorting or swing sorting.

  The waste treatment device 5 is arranged behind the threshing device 3 and conveys the threshed cereals (hereinafter simply referred to as “exhaust”) received from the feed chain 3a by the waste conveyance chain 5a, A predetermined process is performed.

The refined particles separated from the swarf and the like by the sorting device 4 are carried into a Glen tank 7 provided on the right side of the threshing device 3 through the milling cylinder 6 and stored. A discharge auger 8 is connected to the Glen tank 7 in communication. By operating the discharge auger 8, it is possible to carry the fine particles stored in the Glen tank 7 to the outside of the Glen tank 7 through the discharge auger 8.
An operation unit 9 for an operator to operate the combine 1 is disposed in front of the Glen tank 7.

  Below, the structure of the waste disposal apparatus 5 is demonstrated using FIGS. 2-4. The waste disposal device 5 mainly includes a waste cutting device 20, a binding device 30, a waste discharge device 70, and the like.

  The waste cutting device 20 cuts the waste conveyed by the waste conveying chain 5a into a predetermined length. As shown in FIG. 2 or FIG. 3, the rejection cutting apparatus 20 mainly includes a high-speed rotary shaft 21, a high-speed rotary blade 22, a low-speed rotary shaft 23, a low-speed rotary blade 24, a cutting switching cover 25, and the like.

  The high-speed rotation shaft 21 and the low-speed rotation shaft 23 are disposed below the end portion of the waste transport chain 5a. The high-speed rotation shaft 21 and the low-speed rotation shaft 23 are horizontally mounted in parallel in the left-right direction. On the high-speed rotary shaft 21 and the low-speed rotary shaft 23, disk-shaped high-speed rotary blades 22, 22... And low-speed rotary blades 24. 24.

At the left end of the high speed rotating shaft 21, a high speed gear 21a, an input pulley 21b, and an output pulley 21c are provided. An input belt 21d that transmits power from the engine of the combine 1 is wound around the input pulley 21b. A low speed gear 23a is provided at the left end of the low speed rotation shaft 23, and meshes with the high speed gear 21a.
The high-speed rotation shaft 21 is rotated counterclockwise as viewed from the left side by the power from the engine of the combine 1 transmitted through the input belt 21d and the input pulley 21b. The low-speed rotating shaft 23 is rotated clockwise in a left side view by power transmitted through the high-speed gear 21a and the low-speed gear 23a. Further, the high-speed rotation shaft 21 is configured to rotate at a higher speed than the low-speed rotation shaft 23.

  The cutting switching cover 25 is disposed so as to cover the high-speed rotary blades 22, 22... And the low-speed rotary blades 24, 24. The rear portion of the cutting switching cover 25 is fixed to a rotation fulcrum shaft 25a that is pivotally supported in the left-right direction.

The rotation fulcrum shaft 25a is connected to a switching lever provided in the vicinity of the operation unit 9 via an arm, a wire, or the like (not shown). The cutting switching cover 25 can be opened and closed by operating the switching lever. When the cutting switching cover 25 is opened, the waste is transported to the downstream end thereof together with the waste transporting chain 5a and the unillustrated nips disposed below it, and below the cutting switching cover 25. It is thrown. Further, when the cutting switching cover 25 is closed, the waste transported by the waste transporting chain 5 a is carried into the bundling device 30 through the upper part of the cutting switching cover 25.
When the cutting switching cover 25 is opened, the waste that has been carried below the cutting switching cover 25 is cut to a predetermined length by the rotating high-speed rotary blade 22 and the low-speed rotary blade 24, and below the waste cutting device 20. To the field.

  When the cutting switching cover 25 of the waste cutting device 20 is closed, that is, when the cutting switching cover 25 covers the high-speed rotary blades 22, 22... And the low-speed rotary blades 24, 24. The waste conveyed by the waste conveying chain 5 a can be carried into the stock gathering unit 60 of the bundling device 30 through the upper portion of the cutting switching cover 25.

Hereinafter, the bundling device 30 will be described with reference to FIGS.
The bundling device 30 binds the waste transported by the waste transport chain 5a, and as shown in FIG. 2 or 3, mainly the bundling device case 31, the power transmission case 32, the bundling drive transmission unit, and the stock stock assortment. Part 60, binding part 50, etc. are provided. The stock gathering unit 60 and the bundling unit 50 are arranged in the bundling device case 31.

  The bundling device case 31 covers the entire bundling device 30 and is arranged behind the rejection cutting device 20. A power transmission case 32 is arranged on the left side of the bundling device case 31 and houses a power transmission unit such as a part of a bundling drive transmission unit described later.

  The bundling drive transmission unit transmits power to the stock gathering unit 60, the bundling unit 50, and the like, and mainly includes a bundling input shaft 41, a bundling transmission case 42, transmission cases 43 and 45, a chain case 44, and the like.

The binding input shaft 41 is pivotally supported in the left-right direction, and the left end portion thereof extends in the power transmission case 32. A binding input pulley 41 a is disposed at the left end of the binding input shaft 41. The power from the engine of the combine 1 is transmitted to the binding input shaft 41 by the binding input belt 41b wound between the binding input pulley 41a and the output pulley 21c.
The right end of the bundling input shaft 41 is connected to the left side of a bundling mission case 42 disposed at the substantially right and left center of the bundling device 30. As shown in FIG. 2 or 3, a bundling portion 50 (packer 51, needle 53, door 52, etc.) described later is disposed on the left side of the bundling mission case 42. On the right side of the bundling mission case 42, the left end of a transmission case 43 having a longitudinal direction in the left-right direction is fixed. A chain case 44 is fixed to the right end of the transmission case 43. One end of the transmission case 45 is fixed to the upper left part of the chain case 44 in parallel with the transmission case 43. The other end of the transmission case 45 is connected to a knot portion 55, a discharge arm 56, and the like disposed above the bundling mission case 42. Therefore, each drive member can be driven.
A space surrounded by the bundling mission case 42, the bundling portion 50, and the knot portion 55 is defined as a converging space S (see FIG. 4).

  The stock gathering unit 60 is a part for aligning stock stock ends while keeping the waste transported by the waste transport chain 5a in the left-right direction (in a sideways posture). An alignment plate 62, a rotation fulcrum shaft 63, and the like are provided.

The stock holder 61 is placed on the left side of the converging space S, and is a table on which the stock of the waste transported by the waste transport chain 5a is placed.
A rotation fulcrum shaft 63 is erected on the rear part of the stock fulcrum 61, and the rear end of the stock share alignment plate 62 is pivotally supported on the rotation fulcrum shaft 63. The front end of the stock aligning plate 62 is extended to the vicinity of the rear portion of the waste cutting apparatus 20. The stock source aligning plate 62 is driven to swing in the left-right direction about the rotation fulcrum shaft 63 via a link mechanism (not shown) by the power transmitted by the binding input shaft 41.
Therefore, the waste carried into the stock gathering unit 60 is aligned by hitting the stock end of the waste by the stock stock gathering plate 62 that is driven to swing.

  The binding unit 50 binds the wastes whose stocks are aligned by the stock source aligning unit 60 by a predetermined amount. As shown in any of FIGS. 2 to 4, the binding unit 50 mainly includes a packer 51, a door 52, a needle. 53, a binding string case 54, a knot portion 55, a discharge arm 56, a guide plate 57, and the like.

  The packer 51 is disposed at the lower part of the binding unit 50 and is operated so as to reciprocate back and forth. The packer 51 is scraped into the converging space S for temporarily accommodating the waste transported by the waste transport chain 5a. .

  The door 52 is disposed so as to close the outlet of the converging space S (the rear part of the converging space S), and a door shaft 152, which will be described later, which is a rotation shaft of the door 52, is connected to the clutch. Thus, the conveyed waste is received by the door 52 so as to be accommodated in the converging space S. When a predetermined amount of waste is accommodated in the converging space S, the door 52 reduces the accommodation pressure of the waste. It rotates to the receiving rear, and the exit of the converging space S is opened. As the door 52 rotates backward, a clutch (not shown) is activated, and the needle 53 is rotated upward. Details will be described later.

The needle 53 is a member for binding the waste and is disposed in the vicinity of the packer 51. The tip of the needle 53 pivots from below to the upper part of the waste box accommodated by locking the binding string 54a, passes through the slit of the string guide plate 55c disposed at the lower part of the knot portion 55, and The binding string 54a supplied from the binding string case 54 whose tip is held by the holder 55a is supplied to the knot portion 55 while being wound around the waste of the converging space S from the front.
Then, the needle 53 synchronizes with the supply of the binding string 54a, the knotting of the binding string 54a by the knot building 55b, the cutting of the binding string 54a by the string holder 55a, the holding of the cut end, and the like.

  The waste bundled by the binding string 54a is scraped from the exit of the focusing space S by the discharge arm 56, and the binding string 54a is extracted from the knot building 55b to form a knot. Furthermore, the discharge arm 56 is scraped off and transferred to the waste discharge device 70. The door 52 when discharging the waste is retracted downward so that the waste is easily released, and the rear outlet of the converging space S is opened.

  When the knotting operation is performed at the knot portion 55 and the new cut end of the binding string 54a is held by the string holder 55a, the needle 53 moves backward. When the needle 53 returns to a position below the focusing space S, the clutch is disengaged, and the drive of the needle 53, the drive of the knot portion 55, and the drive of the discharge arm 56 are stopped. In addition, the door 52 returns to the accommodation position where the rear end of the converging space S is blocked. The above is one bundling operation, and subsequently, the subsequent waste is similarly accommodated and bound.

A guide plate 57 is horizontally provided on the left side of the packer 51, the door 52 and the needle 53 with the front-rear direction as the longitudinal direction. A shutter 57a is provided on the left side of the door 52 from the guide plate 57, and a return prevention spring 57b is provided on the side of the packer 51 so as to protrude upward and to be able to advance and retract downward.
Therefore, when the waste is scraped into the converging space S by the rotation of the packer 51, the return preventing spring 57b is retracted into the guide plate 57 (downward) by the biasing force, and the waste enters the converging space S. Projecting upward and not to return to the waste transport chain 5a side.
Further, when the door 52 is rotated and the waste 53 bound by the rotation of the discharge arm 56 is released after the needle 53 and the joint portion 55 are joined, the shutter 57a resists the biasing force of the spring and guides the guide. It retracts into the plate 57 (downward) and returns to its original position after release.

  The waste discharging device 70 is disposed behind the binding device 30 and discharges the waste bound by the binding device 30 to the outside (a field). As shown in FIGS. 2 and 3, the waste discharge device 70 mainly includes a discharge guide 71, a discharge portion 72, and the like.

The discharge part 72 is disposed substantially on the left and right of the discharge guide 71 so as to face the discharge guide 71.
A discharge driving sprocket and a discharge driven sprocket (not shown) are provided at the front portion and the rear portion of the discharge portion 72, respectively. A discharge chain (not shown) is wound between the discharge drive sprocket and the discharge driven sprocket. Discharge tines 72a, 72a... Are supported on the outer periphery of the discharge chain. The discharge drive sprockets are rotated by the power from the engine of the combine 1 to rotate the discharge tines 72a, 72a,.

  The waste bundled by the bundling device 30 is transferred to the waste discharge device 70 so as to be sandwiched between the discharge guide 71 and the discharge portion 72. The waste is pushed by the rotating discharge tines 72a, 72a,... To the rear along the discharge guide 71 and discharged from the rear end of the waste discharge device 70 to the field.

  Hereinafter, a configuration for adjusting the focusing space S in front of the door 52 by adjusting the angle of the door 52 of the binding device 30 and adjusting the amount of waste will be described with reference to FIGS. 4 to 6.

  Since the door 52 is attached to a door shaft 152, which will be described later, a turning base 52a at one end of the door 52 is formed in a cylindrical shape, and the shaft center is disposed in the horizontal direction. The left and right sides (right side in this embodiment) of the inner periphery of the rotation base 52a are polygons in cross-section (hexagonal in this embodiment, see FIG. 6A), or a plurality of grooves (see FIG. 6 (b) spline boss and FIG. 6 (c) serration boss) are provided. The left and right other sides of the rotation base 52a have a larger diameter than the fitting portion 52b, and a spring receiving portion 52c for accommodating a biasing member 153 described later is formed. That is, a step is formed at the boundary portion between the fitting portion 52b and the spring receiving portion 52c, and one end of the urging member 153 is brought into contact with the step.

  The door shaft 152 is disposed so as to protrude leftward from the upper rear part of the bundling mission case 42. A rotation base 52a of the door 52 is fitted on the door shaft 152 protruding outside the binding mission case 42, and a needle 53 is fitted on the left door shaft 152. The right end of the door shaft 152 is connected to a clutch mechanism (not shown) in the bundling mission case 42, and the clutch is turned on and off by transmitting the rotational force of the door 52 due to the waste accommodating pressure.

  On the door shaft 152 between the needle 53 and the bundling mission case 42, a door 52 and a biasing member 153 are externally fitted. The door shaft 152 has an outer periphery on the left and right sides that is a polygonal shape in cross-section, or a projection type (a book) that matches the shape of the fitting portion 52b having the plurality of grooves (spline bosses or serration bosses in this embodiment). In the embodiment, a drive portion 152a formed on a spline shaft or a serration shaft is provided, and the drive portion 152a is externally fitted on the fitting portion 52b so as to be slidable in the axial direction. On the other side of the door shaft 152, a spring outer fitting portion 152b having a diameter smaller than that of the driving portion 152a is formed, and an urging member 153 configured by a spring or the like is fitted. The other side of the urging member 153 is received by a ring or the like.

  Thus, the urging member 153 such as a spring is fitted on the door shaft 152, and one end of the urging member 153 is brought into contact with the inner circumferential step portion of the rotation base 52a of the door 52, so that the door 52 is bound to the binding mission. Energized toward the case 42, the fitting portion 52b and the driving portion 152a are fitted together, and the relative rotation is impossible. That is, when the door 52 is rotated, power is transmitted to the door shaft 152 to be rotated.

  In the above configuration, as shown in FIG. 8, in order to adjust the mounting angle of the door 52, first, the door 52 is moved to the needle 53 side (left side, FIG. 8 (a) against the urging force of the urging member 153. Slide it in the direction of the white arrow). By this sliding, the fitting portion 52b is disengaged from the drive portion 152a and is relatively rotatable, and the focusing space S is reduced by rotating the door 52 forward in this state (see FIG. 7A). By turning backward, the converging space S can be enlarged (see FIG. 7B). Then, by sliding the door 52 in the opposite direction (rightward) with the rotation of a predetermined angle (see the white arrow in FIG. 8B), the fitting portion 52b is fitted to the drive portion 152a. As a result, the door 52 is changed and fixed at a desired angle. Note that the inner periphery of the fitting portion 52b and the outer periphery of the drive portion 152a can be configured with serrations to further reduce the adjustment angle and finely set the bundling amount.

  Therefore, as shown in FIG. 7A, when the angle of the door 52 is adjusted, the door 52 is positioned forward, and the focusing space S becomes narrow, the amount of waste that is focused is small. The waste bundle is bundled into small bundles. Further, as shown in FIG. 7B, when the door 52 is positioned rearward and the converging space S is widened, the amount of waste that is focused increases, so that the waste bundle is bound into a large bundle. The Further, as shown in FIG. 7C, the waste is received by the door 52 at a position (see FIG. 6) in which the door 52 is rotated downward and rearward and the fitting portion 52b is fitted to the drive portion 152a. Therefore, the clutch is not activated, and the waste is not bound and is released to the outside as it is.

  As described above, the binding device 30 of the combine 1 according to the present embodiment includes the packer 51 that scrapes waste into the converging space S, the door 52 that holds a predetermined amount of waste in the converging space S, and the predetermined amount. In the binding device 30, the door includes a needle 53 that winds the binding string 54 a around the waste, a knot portion 55 that links the binding string 54 a wound around the waste, and a discharge arm 56 that discharges the bound waste. The rotation base 52a of the rotation base 52a is formed in a cylindrical shape, the inner peripheral cross-sectional shape of the rotation base 52a is formed into a polygon, or a plurality of axial grooves are formed on the inner periphery of the rotation base 52a. A part of the outer periphery of the door shaft 152 that externally fits the moving base portion 52a is formed in a polygonal or projecting shape that matches the inner peripheral cross-sectional shape of the rotating base portion 52a, and the fitting angle between the door 52 and the door shaft 152 is formed. Was configured to be changeable.

  With this configuration, the door 52 can be easily set to an arbitrary angle by sliding the door 52 with respect to the door shaft 152 to release the fitting, and the amount of waste to be bundled can be changed. it can. Further, by rotating the door 52 downward, it is possible to make the drainage spill down, and the working mode can be easily changed. Further, the structure for adjusting the angle of the door 52 can be simplified.

  As described above, the binding device 30 of the combine 1 according to the present embodiment forms the fitting portion 52b formed in a polygon on one side in the inner circumferential axis direction on the rotation base portion 52a of the door 52, and on the other side. A spring receiving portion 52c having a diameter larger than that of the fitting portion 52b is formed, a driving portion 152a to be fitted to the fitting portion 52b is formed on one side of the door shaft 152, and a diameter is reduced on the other side. The spring outer fitting portion 152b is formed, the biasing member 153 is provided in the spring receiving portion 52c and the spring outer fitting portion 152b, and the door 52 is biased in the fitting direction.

  With this configuration, the angle can be adjusted by rotating the door 52 without using a tool or the like. This makes it possible to change the amount of waste to be bundled by simply performing a simple operation without removing complicated parts such as removing the parts of the bundling device 30 and removing the door 52 itself. It becomes possible to prevent loss.

DESCRIPTION OF SYMBOLS 1 Combine 30 Bundling device 51 Packer 52 Door 52a Rotation base 52b Fitting part 52c Spring receiving part 53 Needle 54a Bundling string 55 Knot part 56 Release arm 152 Door shaft 152a Drive part 152b Spring outer fitting part 153 Energizing member S Focusing space

Claims (3)

A packer that scrapes the waste into the converging space;
A door holding a predetermined amount of waste in the converging space;
A needle for wrapping a binding string around a predetermined amount of waste;
A knot portion that knots a cable tie wrapped around the sluice,
In a bundling device comprising a discharge arm that discharges the bundled waste;
The rotating base of the door is configured in a cylindrical shape,
The inner peripheral cross-sectional shape of the rotating base is formed into a polygon,
A part of the outer periphery of the door shaft on which the rotating base is fitted is formed into a polygon that matches the inner peripheral cross-sectional shape of the rotating base,
A combine binding device characterized in that the fitting angle between the door and the door shaft can be changed. A packer that scrapes the waste into the converging space;
A door holding a predetermined amount of waste in the converging space;
A needle for wrapping a binding string around a predetermined amount of waste;
A knot portion that knots a cable tie wrapped around the sluice,
In a bundling device comprising a discharge arm that discharges the bundled waste;
The rotating base of the door is configured in a cylindrical shape,
Forming a plurality of axial grooves on the inner periphery of the rotating base;
A part of the outer periphery of the door shaft on which the rotating base is fitted is formed into a protruding shape that matches the inner peripheral cross-sectional shape of the rotating base,
A combine binding device characterized in that the fitting angle between the door and the door shaft can be changed. In the pivot base of the door,
Form a fitting part formed in a polygon or groove on one side in the inner circumferential axis direction,
While forming a spring receiving portion having a larger diameter than the fitting portion on the other side,
A drive portion that fits with the fitting portion is formed on one side of the door shaft, and a spring outer fitting portion having a reduced diameter is formed on the other side, and a biasing member is formed in the spring receiving portion and the spring outer fitting portion. The combine binding device according to claim 1 or 2, wherein the door is urged in a fitting direction.

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