JPH051245Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" This invention picks up straw grass such as grass and straw scattered in a field in a pick-up section and forms it into a roll-shaped bale in a bale forming chamber. The present invention relates to a roll baler whose outer periphery is bound by twines supplied from a binding device.

``Prior art'' There is a technique in which a separate twine is fed out and operated on the bale each time the bale is tied.

``Problem that the invention attempts to solve'' For this reason, the bundling work is time-consuming, and the work efficiency of not only the bundling work but also the bale forming work itself is significantly degraded.

``Means for Solving Problems'' Therefore, the present invention consists of a twine guide body that spirally wraps twines around the outer periphery of a bale as it moves from side to side, and a twine guide that unwinds twines in conjunction with the guide body. The bundling device includes a rotating feed-out body, and a one-way clutch is provided on the feed-out body, and the rotation of the feed-out body is made free when the speed at which the twine is fed out from the feed-out body exceeds a certain level during the binding operation. It is configured to allow

"Operation" According to the present invention, when the twine guide body is moved during tying work, the feeder is automatically rotated to feed out the twine, while the twine wraps around the outer periphery of the bale and thereafter the bale is rotated. When the twine is forcibly fed out by the twine, the feeding body is allowed to freely rotate, thereby eliminating the inconvenience of resistance being applied to the twine by the feeding body, thereby significantly improving efficiency in tying work. It is.

"Embodiment" An embodiment of the present invention will be described below in detail based on the drawings.

Fig. 1 is an explanatory diagram of the bale forming section, Fig. 2 is an overall side view, and Fig. 3 is a plan view of the same. A baler section 4 is a pick-up section having a pick-up guide plate 5 which is movably installed in front of the baler section and whose mounting position can be changed;
An engine part 8 is installed at the rear and has an engine 7 therein, and 8 is an operation part having an operation panel 9 that connects the engine part 6 to the left and right center of the rear body. In addition to having a working clutch lever 11, the operation panel 9 includes a traveling clutch lever 12, left and right side clutch levers 13, 13, and a transmission clutch lever 14.

An upper pipe conveyor 16 and a lower pipe conveyor 17 are installed in the bale forming chamber 15 of the baler section 3.
As shown in FIG. 4, the upper pipe conveyor 16 has a drive sprocket 18.
The left and right upper endless chains 21, 21 are stretched between the idler 19 and the idler 19 via the chain guide 20,
A plurality of veil-forming upper pipes 23 are horizontally suspended between these chains 21, 21 at equal intervals through bolts 22. Further, as shown in FIGS. 5 to 8, the lower pipe conveyor 17 has a drive sprocket 24 provided in the bale forming chamber 15 and an idle sprocket 2 provided in the pick-up section 4.
Left and right lower endless chains 29, 29 are stretched between the chain guides 26, 27 and the tension roller 28, and these chains 29, 29
A plurality of veil-forming lower pipes 31 are horizontally suspended at equal intervals with bolts 30 interposed therebetween.

Furthermore, a pick-up rotation fulcrum shaft 32 is provided at the front end of the chain guide 27, and the base end of the pick-up case 33 of the pick-up section 4 is supported by the fulcrum shaft 32 so as to be vertically movable. The idle sprocket 25 is rotatably supported by a support shaft 34 fixed to the front end of the pick-up case 33, and the base end of each pick-up finger 36 is pivotally supported by an eccentric shaft 35 integrally fixed to the support shaft 34. , and the tip of each finger 36 is made to protrude outward from each opening 38 of a finger cylinder 37 integrally connected to the sprocket 25, so that when the finger 36 rotates due to the rotation of the cylinder 37, the protruding length can be appropriately varied. Then, the hay in the field is picked up and taken directly into the bale forming chamber 15 by the lower pipe conveyor 17, and as the upper and lower pipe conveyors 16 and 17 rotate, the hay in the forming chamber 15 is rolled into bales A. It is configured to form. Note that 5a in FIG. 1 is a comb-shaped guide rod whose front end is supported by the pick-up guide plate 5.

As shown in FIGS. 9 to 12, the pick-up case 33 includes a support holder 39 and a wire 40.
The lifting device 41 is connected to a pick-up lifting device 41 through a pick-up operation box 42, a pick-up height adjusting operation handle 43, a rotary screw shaft 44 integrally connected to the handle 43, and a rotating screw shaft 44 connected to the handle 43 and the screw. A pedestal 45 that supports the shaft 44, a support shaft 48 that supports the pedestal 45 on the box 42 via a rotating shaft 46 and a holder 47, a sliding body 49 that is coupled and connected to the screw shaft 44, and the sliding body 49. a wire link 51 that connects one end to the movable body 49 via a swing pin 50 and the other end to the wire 40; and a spring 52 that applies a lifting force and bias to the handle 43 in a counterclockwise direction about the shaft 46.
The lifting amount of the pick-up section 4 is adjusted by sliding the slide body 49 using the handle 43, and the box 4 can be adjusted from the raised and lowered positions of the pick-up section 4 in FIGS. 9 and 12.
When the handle 43 is rotated counterclockwise around the shaft 46 along the guide groove 53 of No. 2 and housed in the virtual line state in the figure, the wire 40 is pulled through the wire link 51 and the pick-up portion 4 is moved to the maximum position. It is configured to be lifted to a raised position. At this time, when the wire 40 is raised to the highest position from the raised adjustment position shown in FIG. 9 or the lowered adjustment position shown in FIG. The distances l ₁ and l ₂ between the pins 56 are made approximately equal (l ₁ ≒ l ₂ ), and the handle 43 is kept in the retracted state as shown by the imaginary line in the figure no matter which adjustment position the pick-up portion 4 is in. The pick-up section 4 is always raised and held at substantially the same highest height position.

As shown in FIGS. 13 to 14, the front end of the chain guide 20 supporting the upper pipe conveyor 16 is swingably supported by the drive shaft 57 of the drive sprocket 18, and is rotated by the side plate 3a of the baler section 3. The rear end of the guide 20 is attached to a pin 6 to a fulcrum cross link 59 which is swingably supported via a fulcrum pin 58.
0, 61 and a fulcrum crossing spring 6 which is a position holding mechanism
It is supported through 2. Further, the side plate 3a is equipped with a detection switch 63 which is a bail pressure detection device that detects the outer circumferential pressure of the bale A when the formed diameter of the bale A becomes larger than a certain value, and a switch operation plate 64 that operates the switch 63. Then, the operation plate 64 is supported by the side plate 3a via the fulcrum shaft 65, and the adjustment bolt 67 of the operation plate 64 is adjusted to the position of the chain guide 20 by the fulcrum cross-over spring 66 stretched between the operation plate 64 and the side plate 3a. The fixing pin 68 is always held in contact with the pin 68, and when the bail A diameter exceeds a certain level and the chain guide 20 opens upward at a certain angle α about the shaft 57 due to the contact pressure, the pin 68 and the bolt 67 are held in contact with each other. The operation plate 64 is moved over the fulcrum by the force of a spring 66 around a fulcrum shaft 65, and the switch 63 is turned on to drive an alarm device to notify completion of bale formation during work. Further, a return leaf spring 69 is adjusted between the operation plate 64 and the fixing pin 61 of the chain guide 20, so that when the chain guide 20 returns to its original normal position, the operation plate 64 is also returned to release the switch 63. It is configured to do so. Furthermore, the side plate 3a
is provided with a guide regulating plate 70 that regulates the movement range of the pin 61, and connects the shaft 57 and the pin 58 when the chain guide 20 is in a normal state with the shaft 57 as the center and opened at a certain angle β above the normal position. The spring 62 is caused to pass over the fulcrum from line b, and the pin 61 is brought into contact with one end of the regulating plate 70, and the guide 20 and the link 59 are held in the normal position as shown in the imaginary line in FIG. 13, and the upper pipe conveyor 16 is opened. It is configured so that it is in the state. In addition, left and right side plates 3
left and right fulcrum crossing links 59 pivoting to a, 3a;
59 has the left and right rods 7 through long holes 71, 71.
2 and 72 are connected, and the veil forming chamber 15
Connecting link 74 of side door 73 that opens the left side of
The other end of the rod 72 on the left side is connected directly, and the other end of the rod 72 on the right side is connected via links 75 and 76, so that the upper pipe conveyor 16 and the side door 73 are interlocked and opened. It is configured as follows.

As shown in FIGS. 15 to 21, the bundling device 10 is provided at an approximately intermediate position between the idler 19 of the upper pipe conveyor 16 and the drive sprocket 24 of the lower pipe conveyor 17 in the rear part of the bale forming chamber 15, and 3a, a binding case 78 connected and fixed to the drive input case 77, and the case 7
Drive and driven sprockets 81 and 82 are supported via respective sprocket shafts 79 and 80, and a chain 83 is stretched between these sprockets 81 and 82.
A pair of worm gears 8 are installed inside the input case 77 to transfer the rotation from the input sprocket 84.
5, and a main rotary body 89 for twine feeding, which is a feeding body and interlockingly connected to the chain 83 via a sprocket 87 and a rotating shaft 88.
, a twine feeding sub rotating body 93 which is a feeding body that is press-fitted to the rotating body 89 via a tension spring 90 and sequentially feeds out the twine 91 from the forward delivery port 92 using the rotational force of the rotational force; A square engagement hole 95 is attached to a locking pin 94 that is integrally attached to 83.
The twine 91 is connected through the rotor 78a and is fed out from the delivery port 92 when it moves left and right through the rotor 78a.
A runner 97 is a twine guide body that sends out the bale A forward from the guide fitting 96 and wraps it spirally around the outer periphery of the bale A from the left and right directions, and a runner 97 that is a twine guide body that sends the twine 91 forward from the guide fitting 96 and wraps it spirally around the outer periphery of the bale A from the left and right directions.
The twine supply section 9 is provided with a twine guide plate 98 that slides the twine guide plate 98 to guide the twine feeder 96 into the guide hole 96b, and is fed out from the delivery port 92 when the runner 97 is moved from side to side by the engagement operation of the binding clutch 86.
The twine 91 from 1a is spirally wound around the outer circumference of the bail A formed by the guide fitting 96. The sprocket 87 of the main rotating body 86 is equipped with a one-way clutch 8.
7a is installed inside, and after the twine 91 is wrapped around the bale A, the main rotating body 83 is configured to freely rotate when the feeding speed of the twine 91 increases beyond a certain level.

Further, a cutter 99 for cutting the twine is attached to the front surface of the binding case 78 in front of the rotary bodies 89, 93 via a rotation fulcrum shaft 100 and a spring seat 100a, and each time the twine 91 is wrapped once around the bale A. Pin 1 installed in the runner 97
01 is brought into contact with the cam-shaped protrusion 99a of the cutter 99, and the cutting portion of the cutter 99 is moved up and down, thereby making the twine 9 held on the guide metal fitting 96.
It is configured to cut 1. In addition, 101
a is an upward movement regulating pin of the cutter 99;

Furthermore, the binding clutch 86 is interlocked with the traveling clutch, and includes a clutch operating plate 103 that connects one end to the clutch arm 102 of the binding clutch 86, and pins 104a and 104 on the operating plate 103.
The clutch spring 104 always applies a spring force in the clutch engagement direction via the clutch spring 4b, and the runner 97 supports the intermediate portion via the fulcrum pin 105, and the pin 107 side at one end is normally erected by the force of the torsion spring 106. Inclined clutch action surface 1 of the operation plate 103
03a and resist the force of the spring 104.
Clutch switching arm 10 that holds 03 in the disengaged state
8, one end is connected to the traveling clutch lever 12 via a wire 109, and when the traveling clutch is in the disengaged state, the inclined action surface 111a is brought into contact with the release pin 112 of the arm 108 against the force of the spring 110 between the pins 110a and 110b. and a stopper pin 113 that holds the switching arm 108 in a steady position with respect to the spring 106. 12, the starting plate 111 is pulled in the direction of the solid line arrow in FIG. 20 via the wire 109, and the switching arm 108 is switched clockwise around the pin 105 to the state shown in the imaginary line in the figure using the operating surface 111a. The configuration is such that when the pin 107 is released from the operating plate 103, the operating plate 103 is slid in the direction of the left solid line arrow, and the binding clutch 86 is turned on.

As shown in FIGS. 22 to 23, a manual binding clutch lever 114 and a cam member 115 are provided between the starting plate 111 and the traveling clutch lever 12, and the lever 114 and the cam member 115 are provided on the fixed shaft 117 of the lever box 116. Each proximal end of the cam member 115 is pivotally supported, and the distal end of the cam member 115 is connected to the wire 109 and is connected to the clutch lever 11.
A compression spring 1 that presses a cam groove 120 that engages with a fixing pin 119 of the shaft 117 and a compression spring 1 that presses the member 115 toward the lever 114.
21 at the base end, and when the lever 114 is rotated in the traveling clutch disengaging direction at the imaginary line position in FIG. 118, the cam member 115 is rotated counterclockwise about the shaft 117, and the cam groove 1
20, the cam member 115 resists the spring 121 and retreats by a certain amount in the direction of the solid arrow in FIG.
18 and the engaging surface 114a are rotated beyond a certain rotation range for disengaging the engagement surface 114a, the force of the spring 110 of the starting plate 111 returns the cam member 115 to the original position, that is, the starting plate 111 abuts the pin 110a. The clutch pin 118 is configured to return to its original normal position. That is, the starting plate 11
1, when the levers 12, 114 are turned off, they are slid to the imaginary line position in FIG. 20 only immediately after the operation to release the pressure on the operating plate 103 by the pin 107, and thereafter return the starting plate 111 to its original position. When the pressure on the operation plate 103 is released, the binding clutch 86 is engaged, and the runner 97 moves back and forth once and returns to its original position.
7 to press the operation plate 103 to disengage the binding clutch 86 again.

As shown in FIGS. 24 and 25, the side door 73 has a bracket 122 and a pivot shaft 123.
The handle 126 is attached to the side plate 3a via a fixing plate 124 on one side and a handle 126 via a shaft 125.
is integrally attached to the shaft 125, and a spring 12 is attached to the shaft 125.
The door 73 is locked by attaching a hook 128 that applies a force to the door 73 and properly engaging the hook 128 with a locking member 129 that is integrally fixed to the side plate 3a. The door 73 is opened when the lock member 129 and the hook 128 are disengaged by rotating the lock member 129 and the hook 128.

As shown in FIG. 26, an input shaft 131 of the traveling transmission section is interlocked with the output shaft 130 of the engine 7 through pulleys 132, 133, a belt 134, and a traveling clutch 135 which is a tension roller. Further, a counter shaft 136 is connected to the output shaft 130, and pulleys 132, 137 and the belt 1 are connected to the output shaft 130.
38 and a working clutch 139 which is a tension roller. Furthermore, a drive sprocket 140 of the lower pipe conveyor 17 is attached to the counter shaft 136 with sprockets 141 and 14.
2 and chain 143, and
The drive shaft 57 of the upper pipe conveyor 16 and the drive input shaft 144 of the bundling device 10 are connected to the sprocket shaft 140 by sprockets 145, 146, 84.
The work clutch 1 is interlocked and connected via a chain 147 and a tension sprocket 148.
The upper and lower pipe conveyor 1 is activated by the input operation of 39.
6, 17 and the binding device 10.

As shown in FIGS. 27 to 28, a bale A extraction device 149 is installed in the bale forming chamber 15.
A bail pull-out plate 152, which is a bale cross-feeding device, is embedded in a recessed groove 151 formed in the bale-forming right side wall 150 of the side plate 3a.
The plate 152 is connected to the rod 153 and the rod guide 15.
4 through the drawer handle 15 on the outside of the left side plate 3a.
5, and the handle 1 when the door 73 is opened.
By pulling out the bale 55, the right side of the bale A is pressed by the pull-out plate 152, so that the left side of the bale A protrudes to the left outside of the bale forming chamber 15.

Further, as shown in FIGS. 16 to 17 and 29, a normally closed center detection switch 156 detects when the runner 97 is located at the center position.
and a normally open work clutch switch 157 that detects the engagement of the work clutch 139, and a manual switch 158, the normally open bail pressure detection switch 63, and a warning device for the battery 159 via these switches 156 and 157. A warning buzzer 160 is connected in series, and the warning buzzer 160 is activated when the bail pressure exceeds a certain level.

The present embodiment is constructed as described above, and the hay picked up by the pick-up section 4 is transferred to the bale forming chamber 15 by the lower pipe conveyor 17.
upper and lower pipe conveyors 16, 17
A roll-shaped bale A is then formed. Now, when the diameter of the bale A is formed to be larger than a predetermined diameter, the chain guide 20 of the upper pipe conveyor 16 resists the fulcrum cross-over spring 62 due to the bale A pressure and maintains a constant position around the shaft 57. Angle α
It is pushed upward, turning on the switch 63, driving the alarm buzzer 160, and notifying the operator that the veil A has been formed.

Therefore, when the traveling clutch 134 is disengaged via the traveling clutch lever 12, the starting plate 1
11, the binding clutch 86 is turned on via the switching arm 108 and the operation plate 103, and the twine 9 is turned on.
Binding by 1 begins. That is, while the runner 97 located at approximately the center of the binding case 78 is driven by the chain 83 and reciprocates from the center to the right, from the right to the left, and from the left to the center, as shown in the arrow direction in FIG. The twine 91 fed out from the delivery port 92 is wound around the outer periphery of the bale A in a spiral shape as shown in 1 to 5 in FIG. As shown in the imaginary line in FIG. 18, the movement of the runner 97 is stopped until the locking pin 94 connected to the chain 83 abuts from one end edge 95a of the engagement hole 95 to the other end edge 95b. This is intended to prevent the veil A from deforming by wrapping the twine 91 in multiple layers. and runner 9
When the winding of the twine 91 is completed when the twine 91 returns to the center position, the pin 101 installed in the runner 97 contacts the cam-shaped protrusion 99a of the cutter 99 to move the cutting portion of the cutter 99 up and down, thereby removing the twine 91. cut.

That is, when the traveling clutch lever 12 is switched to the disengaged state, the clutch lever 114 is oscillated to the imaginary line position in FIG.
rotates counterclockwise around the shaft 117, the wire 109 is pulled, and the start plate 111 slides in the entry direction.During this, when the cam member 115 rotates over a certain range, the cam against the pin 119 The cam member 115 retreats under the guidance of the groove 120, and the clutch pin 118 and clutch lever 114
The starting plate 111 returns to its original off position by the force of the spring 110. In this way, the start plate 111 slides to the position shown in the phantom line in FIG. 20 by one action immediately after the travel clutch lever 12 is disengaged, and is normally held at the position shown in the solid line in the figure. At this time, the operating surface 111a pushes up the release pin 112 to switch the switching arm 108, and the pin 107 is released from the operation plate 103, thereby turning the binding clutch 86 on. When the clutch 86 is engaged, the runner 97 reciprocates with the switching arm 108 from the center to the right, from the right to the left, and from the left to the center. 108 is torsion spring 1
Runner 9 maintains a steady posture even with 06 force.
7 returns to the center position from the left side, the clutch pin 107 is moved to the operating surface 103a of the operation plate 103.
The operation plate 103 is slid to disengage the binding clutch 86 and stop the movement of the runner 97. Further, when the binding clutch 86 is engaged, the main and sub rotating bodies 89 and 93 rotate and the twine 9
1 is fed out forward through the delivery port 92 and the guide plate 98, and the twine 91 fed out onto the guide plate 98 is moved forward when the runner 97 moves to the right (first
(Left in Figure 9) The twine 9 slides on the slope 96a of the guide fitting 96 and is introduced into the guide hole 96b, and then the twine 9 is attached to the outer periphery of the bail A through the hole 96b.
1 is supplied, the runner 97 returns to the center position from the left side, and the pin 101 of the runner 97 is pushed into the cutter 99.
When the cutter 99 comes into contact with the cam-shaped protrusion 99a and moves up and down, the twine 91 is cut and the bundling is completed. On the other hand, when the travel clutch lever 12 is in the disengaged state and it is desired to perform binding using the twine 91, the lever 114 is operated.
In this case, the lever 114 is located at the imaginary line position in FIG. 22, and when performing the binding operation, the lever 114 is returned to the solid line position in the same figure and pulled up again to the original imaginary line position to engage the tying clutch 86 in the same manner as described above. The unity begins.

Next, operate the handle 126 to lock the lock member 129.
by disengaging the hook 128 from the door 7.
3, the links 74, 75, 76
The chain guide 20 is moved upward by a certain angle β via the rod 72 to create a gap between the upper pipe conveyor 16 and the bale A, thereby facilitating the removal of the bale A by sliding it laterally. There is.

In addition, when taking out the left outer side of the bale A, since the winding end direction of the twine 91 is in the right direction with respect to taking out the bale A in the direction of the left broken line arrow in FIG. Even if contact resistance is applied to the winding end of the twine 91, the inconvenience that the twine 91 loosens in the tightening direction is prevented.

On the other hand, when lifting the pick-up part 4 to the highest position by operating the operating handle 43 at the end of the work, the pick-up part 4
Regardless of the adjustment position, by positioning the handle 43 in a substantially upright storage position, it can be stably maintained at substantially the same maximum height position.

In addition, since the hay picked up by the pick-up section 4 during work is conveyed to the bale forming chamber 15 by a single lower pipe conveyor 17 that also serves as bale formation, there is no possibility that the hay will become clogged due to poor transfer. Transported smoothly. Furthermore, the rotation of the pick-up finger 36 and the lower pipe conveyor 1
Since the rotations of 7 are synchronized, there is no difference in rotation, and it is possible to pick up the items well and transfer them to the conveyor 17.

By the way, when the binding clutch 86 is engaged, the twine 91 is fed out by the rotational force of the main and sub rotating bodies 89 and 93 until the twine 91 is wrapped around the outer periphery of the bale A, but after the twine 91 is wrapped around the bale A, the pipe When the delivery speed of the twine 91 increases from the initial delivery speed due to the rotation of the bale A by the conveyors 16 and 17, the sprocket 87
The one-way clutch 87a operates to rotate the rotating bodies 89,
93 to rotate freely, these rotating bodies 89, 93
This eliminates the inconvenience of applying the brakes on Twine 91.

"Effect of the invention" As is clear from the above embodiments, the present invention has the advantage of transferring the straw picked up by the pick-up section 4 to the bale forming chamber.
In this structure, the bale A is formed into a roll-shaped bale A in step 5, and the outer periphery of the bale A is bound by twine 91 supplied from a bundling device.
Twine guide body 97 that wraps 1 in a spiral manner
The binding device 10 is provided with twine rotating and unwinding bodies 89 and 93 that unwind the twine 91 in conjunction with the guide body 97, and a one-way clutch 87a is provided on the unwinding body 89, so that the unwinding body 89, 93 is provided with a one-way clutch 87a during the binding operation. 8
When the twine feed-out speed from 9, 93 becomes higher than a certain level, the rotation of the feed-out bodies 89, 93 is made free, so that when the twine guide body 97 is moved during the bundling work, the twine guide body 97 is automatically While rotating the feeding bodies 89 and 93 to feed out the twine 91, the twine 91 is placed around the outer periphery of the bale A.
When the twine 91 is forcibly fed out by the rotation of the bale A, the feeding bodies 89 and 93 are brought into a free rotating state and the twine 9
It is possible to eliminate the inconvenience of the resistance exerted by the feeding bodies 89 and 93 on the tying body 1, and as a result, remarkable effects such as a marked improvement in efficiency in the tying work can be achieved.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of the bale forming section, Fig. 2 is an overall side view, Fig. 3 is a plan view of the same, Fig. 4 is a plan explanatory diagram of the upper pipe conveyor section, and Fig. 5 is a - of Fig. 1. 6 is a perspective view, FIG. 7 is an explanatory plan view of the pick-up section, FIG. 8 is an explanatory side view of the same, FIG. 9 is an explanatory cross-sectional view of the pick-up lifting device section, and FIG. 10 is a vertical sectional view of the same, FIG. 11 is a partial plan view of the same, FIG. 12 is an explanatory diagram of the operating state of FIG. 10,
Figure 13 is an explanatory diagram of the upper pipe conveyor section,
4 is an explanatory plan view of the same, FIG. 15 is an explanatory cross-sectional view of the binding device section, FIG. 16 is an explanatory plan view of the same, FIG. 17 is an enlarged explanatory view of the same part, FIG. 18 is an explanatory bottom view of the runner section, Fig. 19 is an explanatory front view of the same, Fig. 20 is an explanatory rear view of the binding clutch section, Fig. 21 is an explanatory plan view of the same, Fig. 22 is an enlarged explanatory view of the binding clutch operation section, and Fig. 23 is an explanatory plan view of the same. 24 is a plan explanatory view of the door section, FIG. 25 is an enlarged explanatory view of the same part, FIG. 26 is an explanatory view of the drive system, FIG. 27 is a plan explanatory view of the bale drawing device section, and FIG. FIG. 29 is an electric circuit diagram, and FIG. 30 is an explanatory diagram showing a bundled state. 4... Pickup section, 10... Binding device, 1
5... Bale forming chamber, 87a... One-way clutch, 89, 93... Feeding body (rotating body), 91...
Twine, 97... Twine guide body (runner),
A... Veil.

Claims (1)

[Scope of utility model registration request] In this structure, the straw picked up by the pick-up section is formed into a rolled bale in the bale forming chamber, and the outer periphery of this bale is bound by twines supplied from a bundling device. The binding device includes a twine guide body for spirally winding the twine around the outer periphery, and a twine rotating and dispensing body for dispensing the twine in conjunction with the guide, and a one-way clutch is provided on the dispensing body to bind the twine. A roll baler characterized in that the roll baler is configured such that when the speed at which the twine is fed from the feed body increases above a certain level during operation, the feed body is allowed to rotate freely.