JPH024252B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an agricultural binding machine used for binding waste straw after threshing in a combine harvester, or for binding grain culms after reaping in a binder.

This type of agricultural tying machine, which is widely used, wraps the string around the grain bundle after the tying clutch is activated, and supplies the string to the knotting building and the holder for holding the string end, by connecting the above-mentioned building across the tying passage. The needle provided on the opposite side of the holder, that is, the string is passed through the string insertion hole formed at the tip, and the string is always held, and when the tying clutch is activated, the string is passed across the tying passage and the above-mentioned string winding and string supply are carried out. After the binding is completed, the needle is provided so as to cross the binding path again and return to the original position.

Therefore, in conventional agricultural tying machines, a knotting section with a bill and a holder and a needle are arranged on one side and the other side of a tying passage across the tying passage.
The binding case that supports the various binding members and houses the drive mechanism is formed into a gate shape and extends over the binding passage. As a result, the binding machine as a whole is bulky and heavy. In addition, when such an agricultural binding machine is installed in the waste straw processing section at the rear of the combine to bind waste straw, the agricultural binding machine is arranged so that the binding path runs along the front-rear direction or diagonally backward direction. According to this arrangement, the knotting part and the needle are located opposite each other at the top and bottom across the bundling passage, so a straw cutter is installed in the straw processing section at the rear of the combine to bind and shred the straw. If you want to do this as an alternative, it is almost impossible to arrange a cutter below the tying machine so that the cutter does not expand the front-to-back length of the waste processing section. It was hot.

Therefore, the present invention provides an agricultural binding machine that is provided with a binding passage that makes the feeding direction of grain culms and the discharge direction of grain culm bundles equal. A new string wrapping and supplying means provided on the same side will be used to wrap and supply the binding string,
It has a structure with the other side of the binding passage open,
A new type of agricultural bundling that is compact and lightweight, and if installed with the bundling passage located on the bottom side of the bundling machine, other waste straw processing equipment such as a straw cutter can be installed below it. The aim is to provide an opportunity.

Regarding the illustrated embodiment, the configuration of the agricultural binding machine according to the present invention will be explained. As shown in FIG. In a waste straw processing case 2 to which waste straw after threshing is supplied, a waste straw cutter C is installed, with the waste straw cutter C disposed below and the binding machine B disposed above. The binding machine B has U-shaped rails 3a with open lower ends provided at both ends of the upper part of the support frame 3 attached to the upper surface of the binding machine B.
Front and rear 1 installed between both side walls of waste straw processing case 2
By placing it on the pair of support pipes 4, it is supported in a suspended manner, and by tilting it backwards and downwards at an appropriate angle, its lower surface is aligned with the feeding direction of grain culms (excluded straw) and the direction of grain culm bundles (straw bundles). Binding passage 5 that makes the discharge direction equal to
It is installed inside the waste straw processing case 2.
The straw cutter C is configured as a disk cutter in which cutter disks 8 and 9 for handling a plurality of sheets are mounted on a pair of parallel cutter shafts 6 and 7. Inside the waste straw processing case 2, there is a first shutter 11 that selectively opens and closes the straw supply port 10 to the waste straw cutter C, and a straw feed port 12 that selectively opens and closes the straw supply port 12 to the bundling machine B or its bundling passage 5. The second shutter 13 that opens and closes each fulcrum shaft 11a, 13.
It is supported and provided so as to be rotatable around a. A fulcrum shaft 11a to which the first shutter 11 is attached is supported by a fixed support tube 14, and an operating cable 15 that is operated from the combine operator's seat.
The second shutter 1 is fixed to an arm 16 which is rotatably displaced by a
The arms 13b, which are vertically disposed at 3, are interlocked and connected by an interlocking rod 17 having a long hole at one end. According to the above, when the arm 16 is placed in the illustrated position,
When each shutter 11, 13 is in the position shown by the solid line, the straw supply port 10 is closed, and the straw supply port 1 is closed.
2 is opened, waste straw is supplied to the bundling machine B to perform bundling, and conversely, the arm 16 is rotated to the position shown by the chain line, and each shutter 11, 13 is rotated to the position shown by the chain line. and straw supply port 10
is opened and the straw supply port 12 is closed.
The waste straw is supplied to the waste straw cutter C so that the waste straw is shredded. The binding machine B is capable of adjusting its displacement left and right by moving the rail 3a on the support pipe 4.
This makes it possible to change and adjust the bundling position depending on the length of the waste straw.

Hereinafter, the specific structure of the illustrated binding machine B, only the outline of which is shown in FIG. 1, will be explained with reference to FIG. 2 and subsequent figures.

As shown in Figures 2-5, the illustrated binding machine B is
A fuselage case part is provided only on one side (upper side in FIG. 1) of the above-mentioned binding passage 5, and the fuselage case part closes the case 21 fixed to each other and the opening on one side of this case 21. case cover 22,
and a deck 23 provided on the case cover 22
Consists of. Inside this fuselage case part 21-23,
an input shaft 24 with one end facing outside the case 21;
A clutch shaft 25 with one end facing outside the case cover 22, and a clutch shaft 26 with one end facing outside the case 21 and the other end facing outside the deck 23.
and the door shaft 27 with one end facing outside the case cover 22 are parallel to each other, and as shown in FIG. It is arranged so that it can be rotated freely.

In order to push grain culms (waste straw) into the bundling passage 5, a packer is provided as in conventional bundling machines, but in the case shown, the packer is a main packer disposed on the outer surface of the case cover 22. 27A and the auxiliary pack car 27 placed on the outer surface of the case 21
It is also composed of B. Main police car 27
A is provided with one end pivoted at 30 on a rotation support arm 29 whose pivot shaft 28 is one of the connecting rods connecting the case 21 and the case cover 22, and fixed to the packer shaft 25. Patscar crank 3
1 through a pivot connection 32. The auxiliary packer 27B is fixed 34 at its proximal end to a platform 33 (FIG. 2) provided on the main packer 27A.
By meshing the gear 35 fitted to the gear 35 fitted to the input shaft 24 with the gear 36 fitted to the input shaft 24,
It is assumed that the main packer 27A is constantly driven by the input shaft 24, so that the main packer 27A is constantly driven so that its tip is rotationally displaced along the trajectory _C1 shown in FIG. Also, auxiliary police car 27B
Since it is fixed to the main packer 27A, it is driven in the same way as the main packer 27A.

In order to receive grain culms (waste straw) at the end of the bundling passage 5, a door 38 must be opened on the outer surface of the case cover 22.
is provided. In the illustrated case, this door 38 is a door support arm 39 fixed to the door shaft 27, which is provided with a plurality of insertion holes 39a for fixing devices 40 so that the amount of door protrusion in the direction of the binding passage 5 can be changed. It is attached to 39. On the clutch shaft 26, a clutch gear 41 meshed with the gear 36 on the input shaft 24 is loosely fitted. A sense actuated tie-down clutch 42 is conventionally provided. The specific structure of the illustrated binding clutch 42 will be explained later, but in any case, the clutch shaft 2
6 is intermittently driven one rotation by the actuation of the tying clutch 42, as in the conventional tying machine.

A bill 43 for tying a tying cord and a holder 44 for holding the end of the cord are arranged such that the bill 43 is placed on the upstream side in the grain culm flow direction and the holder 44 is placed on the downstream side in the same direction, as in the conventional binding machine. They are arranged and arranged side by side, respectively. As shown in FIG. 3 for the building 43, these buildings 43 and holders 44 are supported by a support provided on the deck 23, and small diameter bevel gears 43a, 44a are connected to the base end as in the conventional binding machine. The drive shaft 43b, 44b (the drive shaft 43b is integrated with the building body, and the drive shaft 44b is spline-fitted to the holder body), etc. , a large-diameter drive bevel gear 45 provided with teeth 45a only in a certain angular range, which meshes with the small-diameter bevel gears 43a and 44a in the middle of one rotation of the clutch shaft 26 to drive the building 43 and holder 44. A driving bevel gear 45 is fixedly mounted directly on the clutch shaft 26. The building 4 is driven in the middle of one rotation of the clutch shaft 26.
3 and the holder 44 are the same as conventional ones.

In order to discharge the bundled grain culm (waste straw) bundle, a discharge arm is provided as in the conventional binding machine. In the case shown in the figure, two ejection arms 46 are arranged on both sides of the fuselage case part 21-23.
A, 46B are provided, and the release arms 4 on both sides
A connecting pipe 47 connecting 6A and 46B is supported by the deck 23 via a connecting frame 49 having pivot points 49a and 49b at both ends. On the clutch shaft 26, there is a discharge crank 5 outside the case 21.
0 is loosely installed, and the ejection arm 46A on one side
is pivotally connected 51 to the discharge crank 50, and the end of the connecting pipe 47 is attached to a rotating cylinder 52 at the base end of the discharge arm 46A. A crank plate 53 is provided fixed to the clutch shaft 26, and this crank plate 53 and the discharge crank 50 are connected to each other.
The rotation of the clutch shaft 26 is transmitted to the discharge crank 50 by connecting the clutch shaft 26 with a pin 53a. As described above, the ejection crank 50 is driven by the clutch shaft 26 during one rotation of the clutch shaft 26, and the ejection arms 46A, 46B are moved along the rotational trajectory shown in FIG.
The bundle is released and rotated so that it is displaced along C ₂ .

As mentioned above, the illustrated binding machine B includes packers 27A and 27B, a door 37, a building 4
3. Holder 44 and release arms 46A, 46B
Also, a tying clutch 42 is provided, but the needle provided in the conventional tying machine is
It is no longer set up. In place of the conventional needle, a string supply arm 55 as described below is provided.

That is, the supply arm fulcrum shaft 5 is rotatably supported by the deck 23 and protrudes outside the deck 23.
The rotation support arm 57 whose base end is attached to 6,
The string supply arm 55, which is provided on the outer surface of the deck 23, has a cylindrical body 55a fixed to its base end.
Support cylinder 57 fixed to the tip of rotation support arm 57
A is fitted and fixed to a pin 58 which is rotatably supported on the supply arm fulcrum shaft 56, and is rotatable around the supply arm fulcrum shaft 56 together with the rotation support arm 57, and relative to the rotation support arm 57 around the pin 58. It is rotatably supported and provided along the outer surface of the deck 23 outside the outer surface. A string supply crank 59 is fitted to the end of the clutch shaft 26, and the other end of a drive arm 61 whose one end is pivoted 60 to the string supply crank 59 is connected to a pin 6 midway through the rotation support arm 57.
2, so that the lace supply arm 55 can be driven when the clutch shaft 26 rotates. In the illustrated case, the string supply arm 55 is divided into two parts 55b and 55c midway in the length direction, and the two parts are connected by a connecting tool 63.

A string supply actuator 64 as described below is fixed to the tip of the string supply arm 55. That is, as shown in FIG. 6, the string supply actuator 64 has a slope 64a at the tip end formed in the shape of a closed end, which slopes so that the vertical width becomes smaller toward the tip end.
Strap guide groove 6 that extends from one side wall to the entire back wall
4b, the string guide grooves 64 are arranged diagonally in order to lower the height of the groove 64b on the back wall surface.
b. The string supply arm 55 supported as described above and driven as described above is connected to each of the arms 55, 57, 61.
By appropriately setting the length etc., the clutch shaft 26
During one rotation, the tip of the string supply actuator 64 moves along the trajectory _C3 shown in FIG. 2 to the standby position _P0.
First, cross the binding passage 5 in the other direction to reach the first dead center position _P1 , then cross the binding passage 5 in the opposite direction, pass the building 43 and the holder 44 position, and reach the holder 44 position. It is assumed that the motor is driven so as to reach the dead center position P2, which is slightly past the point _P2 , and then return to the standby position _P0 again.

As described later, the string supply arm 55
While the string supply actuator 64 at the tip moves from the first dead center position P ₁ to the other dead center position P ₂ , the string R whose tip is held by the holder 44 is
is received by the string guide groove 64b of the string supply actuator 64 and rotated while being grasped. In order to prevent the relative attitude of the string guide groove 64b to the string R from being changed, the following means are provided. That is, as clearly shown in FIG. 3, a sprocket wheel 66 is provided on the supply arm fulcrum shaft 56, and is fixedly connected to the deck 23 by a coupling 65 and restrained from rotating. Another sprocket wheel 67 is fixedly installed on the pin 58 at the base end of the string supply arm 55, and both of these sprocket wheels 66, 67
A chain 68 having a length adjustment part 68a is disposed therebetween.
It is turned over. Therefore, the drive arm 61
The rotation support arm 57 and the string supply arm 55
When the rotation support arm 57 is rotated,
The chain 68 is driven by the rotation of the sprocket wheel 67 and the pin 58 is rotated, so that the string supply arm 55 whose base end is fixed to the pin 58 is moved relative to the rotation support arm 57. As a result, the angle between the rotation support arm 57 and the string supply arm 55 is changed, and the string guide groove 64b on the back side of the string supply actuator 64 is designed to always follow the trajectory _C3 . ing.

A knot cover 69 is provided on the binding passage 5 side of the knot section provided with the bill 43 and the holder 44, as in the conventional binding machine. Similarly to the conventional binding machine, a string guide 70 (FIG. 5) is provided for directing the tip of the string R toward the building 43 and the holder 44. On the other hand, in the case shown, the second shutter 1
3 (FIG. 1), the following string guide means is provided. That is, as shown in FIG. 5, the string guide means has a first string guide 71 located on the upstream side in the direction of flow of grain culms (excluded straw) and a second string guide 72 located on the downstream side. , and as shown in FIG. 7, the first string guide 71
is equipped with a guide portion 71a that always makes the string R portion on the proximal end side of the first string guide 71 substantially parallel to the binding path 5 by contacting the string R from the opposite side of the binding path 5. In addition, when the string R comes into contact with the second string guide 72 from the binding path 5 side, the second string guide 72
and a guide portion 72a that makes the string R portion between the second string guides 71 and 72 substantially parallel to the binding path 5, and the guide portion 72a
2 extending in an expanded shape toward the binding passage 5 from both ends of the
It includes leg portions 72b. The first and second string guides 71 and 72 are arranged so that when viewed in the direction along the binding path 5, the two guides 71 and 72 form a closed string guiding channel Ch as shown in FIG. 7b. The arrangement is provided on the shutter 13.

Other configurations of the string supply arm 55 and other parts related thereto will be described later along with their operation.

The binding clutch 42 described above is constructed as follows in the illustrated case. That is, the third and fourth
As shown in the figure, a bell crank-shaped clutch operating arm 74 is loosely supported on the packer shaft 25, and an elongated hole 74a formed at the end of one leg of the clutch operating arm 74 is provided with a door shaft 27. A pin 75a on the actuating arm 75 fixed to is inserted. Further, a fulcrum pin 77 is fixedly erected on a disk 76 fixedly installed on the clutch shaft 26, and a clutch arm 78 rotatably supported by the fulcrum pin 77 is provided between the clutch gear 41 and the disk 76, A regulating protrusion 74 attached to the other end of the clutch actuating arm 74 is attached to the clutch arm 78.
b is formed with a claw 78a that engages from the direction of arrow A in FIG.
A spring 79 is provided. clutch gear 41
An annular groove 41a is formed on the side of the disc 76, and a clutch pin 78b is provided at the other end of the clutch arm 78, which can engage with an inward protrusion 41b provided on a part of the periphery of the groove 41a. It is installed.
Further, a rotating arm 80 is loosely supported on the clutch shaft 25, and a cam plate 81 is fixedly installed on the clutch shaft 26, and one end of the rotating arm 80 is in contact with the periphery of the cam plate 81. roller 82
The clutch actuating arm 74 and the other end of the rotating arm 80 are each provided with a spring receiving plate 83,
A clutch spring 85 having both ends received by the spring receivers 83 and 84 is provided on the guide rod 86.

From the above, the binding clutch 42 is connected to the binding passage 5.
A set amount of grain culm (waste straw) is collected at the door 38 in the passage 5 closed position, and a certain amount of grain culm (waste straw) is collected by the grain culm pressure.
When the door shaft 27 is rotated in the opening direction, the clutch actuating arm 74 is moved through the actuating arm 75 and the actuating pin 75a due to the rotational displacement of the door shaft 27 at that time.
is rotated slightly counterclockwise as seen in FIG.
The clutch pin 7 is rotated and displaced by the action of 9.
8b is displaced to a position where the protrusion 41b engages with the clutch gear 41, and the rotation of the clutch gear 41 is transmitted to the clutch shaft 26 via the clutch arm 78, fulcrum pin 77, and disk 76. introduce. As described above, after the door 38 is rotated a small amount in the opening direction and the clutch spring 85 is compressed to the maximum by the rotational displacement of the clutch actuating arm 74 at that time, the clutch actuating arm 74 and the rotating arm 85 are compressed to the maximum extent. The two arms 74 and 80 rotate together in the counterclockwise direction as seen in FIG. is regulated, the clutch actuating arm 74
rotation in the above-mentioned direction, and therefore further opening rotation of the door shaft 27 and the door 38 is prevented. Then, the rotation of the clutch shaft 26 progresses, and the roller 8
2 reaches the position of the cam groove 81a formed in a certain angle range on the periphery of the cam plate 81, and the cam groove 81a
4, the rotation arm 80 and the clutch actuating arm 74 can be rotated in the counterclockwise direction as seen in FIG.
When pushed out by the grain culm bundles 6A and 46B, the door 38 is rotated open by being pushed by the grain culm bundle. Next, when the roller 82 is pulled out of the cam groove 81a, the rotating arm 80 is rotated clockwise as seen in FIG. 4, and the clutch operating arm 74 is rotated in the same direction, so that the operating pin 75a and the door shaft 27 and the door 38 via the actuating arm 75.
is brought into the closed position of the binding channel 5. Further, due to the rotation of the clutch actuating arm 74, the regulating protrusion 74b pushes up the rear surface 78'a of the pawl 78a that has moved to the position of the protrusion 74b, releases the engagement of the clutch pin 78b with the gear 41, and then At this time, the claw 78a engages with the regulating protrusion 74b, and the binding clutch 42 is disconnected.

As described above, the action or function of the binding clutch 42 is the same as that of the conventional one. In FIG. 4, reference numeral 87 denotes a reverse rotation regulating plate rotatably supported by a shaft 89 on a bracket 88 on the inner surface of the case cover 22, and is engaged with an engagement step formed on the periphery of the disk 76 by the action of a spring 90. Clutch shaft 2
6 to prevent reversal of the means driven.

The operation of the illustrated tying machine B, especially the operation of its string supply arm 55, when tying the shredded straw with the shutters 11 and 13 in the position shown by the solid line in FIG. 1 will be explained below with reference to FIGS. 5 and 8. ,
I will explain it while adding some explanations of the structure.

At the start of work and after one cycle of tying operation is completed, the tying string R is guided by the first string guide 71 on the shutter 13 and the string guide 70 at the knot, as shown in FIG. 43 and the end of the cord is held in the holder 44.
The string supply arm 55 is in a standby position with the tip of the string supply actuator 64 located at the position P ₀ , and the door 38 is in a position to close the end of the binding passage 5.

As the straw is fed into the bundling passage 5 from the state shown in FIG. 5 with the help of the police cars 27A and 27B, the string R portion crossing the bundling passage 5 moves toward the door 38. As shown in FIG. 8a, the R part of the string forms a loop, and
The straw is collected in front of the shutter 13, and the string R is moved along the surface of the shutter 13, and the second string R is moved downstream of the first string guide 71.
The string R comes into contact with the string guide 72, and as described above, the string R is kept substantially parallel to the binding path 5 between the string guides 71 and 72. As shown in FIG. 8a, when a set amount of waste straw is collected in the bundling passage 5, the bundling clutch 42 is engaged by the door 38 sensing the bundle pressure.

The actuation of the binding clutch 42 causes the string supply arm 55 to move from the standby position shown in _{FIG .} Figure 8 b
Shutter 13 through the binding passage 5 to the first dead center position.
be moved across the direction. The dead center position P ₁ of the string supply actuator 64 is located between both string guides 71 and 72 on the shutter 13.
The relative positional relationship between the string supply actuator 64 and the string R between the string guides 71 and 72 in the direction perpendicular to the paper surface in FIG. 8 is as follows. When the string supply actuator 64 passes between the string guides 71 and 72, the string R between them relatively climbs up on the slope 64a of the string feed actuator 64, passes over the actuator 64, and reaches its height. It is set so that it reaches all the way to the back.

Therefore, as described above, the string supply arm 55
crosses the binding path 5 in the opposite direction, and while the string supply actuator 64 reaches from the dead center position in FIG. 8b to the position shown in FIG. 8c, the string feed actuator 64 When passing between the guides 71 and 72, the middle of the string R enters the string guide groove 64b of the actuator 64, and the string R is in a state where it can freely slide in the length direction of the string supply actuator 64. I get grabbed. Therefore, as shown in FIG. 8c, the middle part of the string R is disengaged from the second string guide 72 and is brought to the knot side by crossing the binding passage 5, and then the string supply arm 55 further rotates. While the string supply operator 64 moves toward the building 43 and the holder 44 and reaches the position shown in FIG. 8d, the string R is wound around the collected bundle. The track at the tip of the string supply actuator 64
C ₃ (Fig. 2) shows that the string supply actuator 64 passes the lower surface of the building 43 and the string R is guided doubly by the string guide 70 as shown in Fig. 8d.
As shown in FIG. 8e, the string R is supplied to the holder 44, and then, as shown in _FIG . The setting is such that the string R is supplied to the

When the state as shown in FIG.
a and 44a are reached, and Fig. 8 e and f
As shown in FIG. 3, the bill 43 is driven to knot the string R, and the holder 44 is driven to hold the string R and cut the string R between the knot point and the holding point using the knife 44d. It will be done. The string supply arm 55 returns from the dead center position of FIG. 8e to the standby position as shown in FIG. It is removed from child 64.

Thereafter, the string supply arm 55 returns to the standby position shown in FIG. 5 and is stopped when the clutch shaft 26 stops rotating.After the knotting is completed, the door 38 is rotated by the release rotation of the release arms 46A and 46B. The bound bundle is pushed out and released while
In the illustrated case, the opening position of the door 38 is set to a position where the door 38 is sunk into the nodule cover 69 as shown by the chain line in FIG. 2, so that the bundle can be released smoothly. It's on.

The string guide groove 64b of the string supply actuator 64 is provided to be inclined as described above, and there is a height difference h at both ends of the groove 64b on the back surface of the actuator 64 as shown in FIG. 6b.
Therefore, as shown in Figure 8e, the holder 44
is placed within the loop of the string R held by the string supply actuator 64 within the height difference h, and holds only the end of the string R that will be used for the next binding.
Double take of the string R by the holder 44 is reliably prevented. Furthermore, when the string R is removed from the string supply operator 64 from the state shown in FIG.
4, the position where the string R engages with the string supply actuator 64 and the position where the string R is held with the holder 44 are sequentially given a height difference, so that this is extremely easy. The movement trajectory C ₃ of the string supply operator 64 is
As shown in FIG. 2, while the actuator 64 is moving to supply the string, the actuator 64 moves as far inward as possible to the case 21 (in the opposite direction to the binding path 5) from the building 43 and holder 44 positions.
It is set so that it does not protrude, moves the minimum distance within the limit necessary for supplying the string, and so that consumption of the string R is kept to a minimum.

The surface S ₁ of the case 21 and the surface S ₂ of the knot cover 69 facing the bundling passage 5 are configured as guide surfaces that guide the grain culms (husks) together with the sitter 13 on the other side within the bundling passage 5. The guide surfaces S ₁ and S ₂ provide a grain culm guide surface having a large width in the grain culm (hull) length direction.

As is clear from the above description, the agricultural binding machine of the present invention is provided with a binding passage that makes the feeding direction of grain culms equal to the direction of discharging grain culm bundles, and can replace the needles in conventional binding machines. , a string supply arm provided on the same side as the building and the holder, which is made to move back and forth only when the binding is activated, and engages the string end with the string held in the holder and moves the string to feed the grain culm bundle. The device is equipped with a string supply arm that wraps the string around the building and supplies it to the building and holder, then releases the string and returns to the original position. By providing the tying mechanism on the same side as the tying mechanism and driving it on that side, the entire tying mechanism can be placed on one side of the tying passage, providing an extremely compact and lightweight tying machine. Furthermore, since the binding machine of the present invention is such that the entire binding mechanism can be placed on one side of the binding path, there are no obstacles on the other side of the binding path, and the width of the binding path or the binding pocket can be freely expanded.・It is designed to be able to be reduced in size, and the thickness of bundles to be bundled can be easily adjusted.

A binding machine with a structure in which all the binding mechanisms are placed on one side of the binding passage, that is, the other side of the binding passage is open, is shown in Figure 1, with the binding passage placed on the bottom side of the binding machine and the combine discharged. If installed in the straw processing section, other waste processing equipment such as a straw cutter or straw dropper for collecting and dropping straw can be installed below the tying machine so that the processing equipment does not protrude backwards. , according to this invention,
In a combine harvester in which the waste straw processing section is provided with another waste straw processing device together with the binding machine, the longitudinal length of the waste straw processing section can be shortened.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway schematic side view showing the main parts of a combine harvester equipped with an embodiment of the present invention, Fig. 2 is a plan view of the embodiment, and Fig. 3 is a partially expanded longitudinal section of the embodiment. 4 is a cross-sectional view of the same embodiment, and Fig. 5 is a cross-sectional view of the same embodiment.
The figure is a plan view of only the main parts of the same embodiment, Figures 6a and 6b are perspective views of the main parts of one member of the same embodiment, and Figures 7a and b are respectively the main parts of the same embodiment. Perspective view and rear view of only the members, Figures 8a, b, c,
d, e, and f are plan views of only the main parts of the same embodiment for explaining the operation. B... Binding machine, R... String, 5... Binding passage, 1
3...Shutter, 26...Clutch shaft, 27
A, 27B... Police car, 38... Door, 42...
... Binding clutch, 43 ... Bill, 44 ... Holder, 46A, 46B ... Release arm, 55 ... String supply arm, 56 ... Arm fulcrum shaft, 57 ... Rotation support arm, 59 ... String supply crank , 61...
... Drive arm, 64 ... String supply operator, 71, 7
2...String guide.

Claims (1)

[Claims] 1. In an agricultural tying machine equipped with a tying passage that equalizes the grain culm supply direction and the grain culm bundle discharge direction, the tying clutch is used to wind the string around the grain culm bundle after activation, and to hold the knotting building and the string end. A cord supply arm is arranged on one side of the binding passage where the building and the holder are juxtaposed, and is moved from a standby position to the other side of the binding passage when the binding clutch is operated. Then, after grasping the middle of the string on the other side of the binding path, move toward the building and the holder, and after supplying the string to the holder, release the string and return to the standby position using the provided string supply arm.
This agricultural tying machine is characterized by its configuration.