JPS6127006B2 - - Google Patents

Description

[Detailed Description of the Invention] In the conventional bundling device, when the packer scrapes the grain culms into the converging section and the door detects that the amount of condensed grain culms has reached a predetermined amount, the one-turn clutch operates to tie the grain culms into the knotted section. However, the timing of the operation of the nodal part is such that it does not operate when the packer is at its maximum compression, but operates when the packer retreats and the compressed grain culm expands.
In other words, the knot is activated and knotted when the string is loose, so the compressive action of the packer cannot be fully utilized and the string is tied loosely.
There were defects that caused the culm to fall out and fall apart.

The present invention aims to solve the above-mentioned problems, and includes a packer that is constantly driven by a drive shaft via a link, and a packer that is activated when the packer collects a certain amount of grain culms at a collecting part. In a tying device having a rotating clutch, a knot that is disengaged through the one-turn clutch, and a needle, the needle and the knot are connected to each other, and the needle is stopped in the fully inserted state when the knot pulls the string. It is characterized by interlocking and interlocking as shown in the figure.

Examples and related matters will be described below with reference to the drawings.

One side of the bundling device is formed into a grain culm bundling processing passage A which is a series of a receiving part 5, a supply passage 6, a culm collection part 7, and a discharge passage in order from the starting end. That is, the knot part and the needle part of the binding device are both provided on one side of the grain culm binding processing passage A, and a ring-shaped string supply integral with the boss 15a of the guide 15 is provided at the part facing the culm collecting part 7. A port 14 is provided.

Next, to explain the transmission device, the input pulley, which is driven by an appropriate shaft of the combine body, is fixed to a spline shaft supported by a bearing and constantly rotates. Therefore, when the binding device is moved and adjusted in the culm direction as described later, it expands and contracts while transmitting rotation.

In FIGS. 2 to 5, the transmission mechanism is housed in one transmission case 22 having a case cover 23, and an input shaft 24 is connected to a cylindrical shaft 21 by a pin 24', and is loosely fitted into the input shaft 24. The gear 25 rotates together with the input shaft 24 via a torque limiter.

However, when the trilimiter is not used, the gear 25 is fixed to the input shaft 24.

A gear 27 that meshes with the gear 25 and has a tapered pawl 27a on the side surface is spline-fitted to the crankshaft 26 having the clutch pin 26b and the arm cam 26a, and further has a one-turn clutch boss 2.
8 is rotatably fitted. The one-turn clutch boss 28 has a cam plate 28a having a crescent-shaped protrusion 28b and a pin 28c at one end, and a partially disposed gear 30 on the other side with a loosely fitted clutch plate 29 in between.
are spline-fitted to each other, and the distal gear 30 and the clutch plate 29 are connected to each other through small holes 29d and 30 at the ends.
The clutch plate 29 is urged in the rotational direction (counterclockwise in FIG. 5) in conjunction with a torsion spring 32 that is engaged with the clutch plate 29.

Numeral 31 is a clutch pin having tapered portions 31a and 31b at both ends, and is loosely fitted into a hole 28a' formed in the cam plate 28a.
includes a protrusion 29c, a tapered hole 29b into which the tapered part 31b of the clutch pin 31 fits, and a recess 29a in which the pin 28c engages to regulate the rotation angle of the clutch plate 29 with respect to the cam plate 28a, and 30, as shown in FIG.
It is composed of three teeth and three narrow teeth 30c, and there are seven missing teeth.

The forward/reverse shaft 33 meshes with the wide teeth 30b and the narrow teeth 30c of the partially toothed gear 30 at one end, and has tapered portions 34a, 34b, 34c, 3 spaced apart by 90 degrees.
4d has a perforated intermediate gear 34 (24 teeth), and a swinging link 35 is loosely fitted on the other side, and the swinging link 35 has tapered portions 36 on both sides.
a, 36b and a hole 35' which slidably holds a crank pin 36, and a hole 35' which pivotally supports a roller 37 that slides on the cam plate 28a, and the protrusion 29.
A mounting seat 35d having a protrusion 35a that engages with c.
and a boss portion 35c into which a stopper cam 38 is rotatably fitted.
5d fits into the recess 38a and the cam plate 28a.
The stopper cam 38 is provided with two protrusions 38d and 38e that can come into contact with the arcuate portion of the protrusion 28b, and this stopper cam 38 is provided with a torsion spring 39 whose both ends are engaged with small holes 38c and 35b, as shown in FIG. 4A. The tapered hole 38b is biased so as to be displaced with respect to the clutch pin 36.

Further, the intermediate gear 34 has a gear 4 of a multi-use shaft 40.
A needle 42 and a door 49, which will be described later, are attached to the multi-use shaft 40, and the multi-use shaft 40 serves both as a door shaft and a needle shaft.

Nodule drive mechanism The drive gear 50 consists of 10 teeth in this example,
These teeth are designed to mesh only with the wide tooth 30b of the partially toothed gear 30, and the two teeth, which are out of phase by 180 degrees, have about half of the tooth width cut out to form the partially cut teeth 50a, 50a. ', the drive gear 50 rotates 180 degrees and the cam 30a of the partially toothed gear 30 rotates to the partially partially toothed gear 50a.
Or, when the cam 50b enters the cutout, the front and rear long teeth 50b, 50b' slide into contact with the outer periphery of the cam 30a and are locked, and when the cam 30a passes through the cutout,
The cutout tooth 50a meshes with the wide tooth 30b and is driven. At the same time as the last wide tooth 30b passes the long tooth 50b, the cam 30a enters the cutout tooth 50a', and the drive gear 50 rotates 1/2 and is locked again.

In other words, the toothless gear 30 has 15 teeth, including seven toothless parts, and five of the wide teeth 30b rotate the drive gear 50 by 1/2 rotation.
The speed is increased by the succeeding gear, so that the bill and holder make one revolution while the partially toothed gear 30, which is the output gear of the one-turn clutch, makes one 5/15 revolution to perform the connecting action.

Further, the drive gear 50 integrally includes a bevel gear 51 having 18 teeth and is rotatably supported by a shaft 52, the shaft 52 having a small diameter portion 51a at one end,
A mounting seat 52b having a pin 52c and screwed onto the transmission case 22 with a mounting bolt is fixed to the other end, and the tip 53a of the anti-reverse claw 53 set on the pin 52c is attached to the periphery of the cam plate 28a. The base end is pulled by a tension spring 54 whose one end is fixed to the transmission case 22, and the back surface is in contact with an end 55a of a mounting bolt 55. However, when the protrusion 35a engages with the 29c and acts as a stopper, the anti-reverse claw 53 is separated from the end 55a of the mounting bolt 55, as shown in FIGS. 3 and 4A.

The speed increasing gear 60 (16 teeth) includes the bevel gear 61 and is rotatably supported on the shaft 62.
One end is attached to the transmission case 22, and the other end is attached to the hole 62.
The shaft 52 is supported by inserting the small diameter portion 52a of the shaft 52 into the shaft 52.

The three-point meshing gear 70 (the number of teeth has no meaning but is set at 26) is connected to the speed increasing gear 60 and the holder gear 80 (the number of teeth is 26).
12 teeth) and a building gear 90 (12 teeth) are supported by a shaft 71 so as to constantly mesh with the building gear 90 (12 teeth), and the shaft 71 is fixed to the transmission case 22 with a nut 72. A building pressing plate 73 is attached.

Further, the holder gear 80 is attached to a holder shaft 81 that transmits rotation but slides in the axial direction, and the holder shaft 81 is supported by the transmission case 22 via a bush 85 and is also inserted into the cam metal 82. Only the holder 84 fixed to the outer end of the holder 84 protrudes outside the case, and the holder spring 83 and the holder gear 80 are housed inside the transmission case 22.

Furthermore, a holder spring 83 is provided between the holder gear 80 and a spring receiver adjusted by a nut 88.
Since the tapered surface of the holder 84 is pressed against the tapered surface of the cam metal 82 to form a string holding tapered surface 87, the outer end surface of the spring holder is formed into a hexagonal conical tapered groove to form a hexagonal shape. When adjusting the string clamping pressure by turning the nut 88, turn the nut 88.
8 matches the tapered groove of the spring receiver every 1/6 rotation, and the holder spring 83 constantly presses the spring receiver to prevent the nut 88 from returning.

The building 91 itself is exactly the same as the conventional one, but the shaft hole of the building gear 90 is oval-shaped with two parallel surfaces, and the gear bearing portion of the building shaft 91a has a width of the two parallel surfaces as described above. It is formed into an oval shape that is slightly narrower than that of the shaft hole. In other words, a certain play is formed between the bill gear 90 and the bill shaft 91a.

Further, as shown in FIG. 2, the building pressing plate 73 is pressed against the building 91 by being pulled by a tension spring 92 whose tension can be adjusted by a nut, thereby applying cord clamping pressure to the building 91 and applying braking force. Therefore, the bill 91 rotates in a state where it is deflected in the opposite drive direction by the amount of the play, as shown by the chain line in FIG. However, at the same time as the joint is removed, the spring 92 and the pressing plate 73 return to the original state A.

The knot guide 94 has its base fixed to the transmission case 22, and as shown in FIGS. 3 and 5, the knot guide 94 is a grain culm binding processing passage in which the receiving portion 5, the supply path 6, the culm collecting portion 7, etc. are connected in series. Forming one side of A and building 9
1 and the holder 84, the lower end of the string guide groove provided diagonally downward from the top of the end surface of the nodule guide 94 is a dead end, and the inlet is connected to the needle passage. , and one side edge serves as a guide surface for strings.

Drive mechanism for the pack car and star wheel In FIG. Since the connected arm 100a is always swinging, the pack car 102 fixed to the other end swings, and its tip 10
2a moves in an arc.

The cam link 110 that is in contact with the arm cam 26a that rotates together with the crankshaft 26 is attached to the case cover 2.
The pin 110a provided at the end of the arm cam 26a swings as the arm cam 26a rotates.

Also, the bracket 1 that holds the transmission case 22
The intermediate shaft 11 is attached to the bearing pipe 112a provided in the bearing pipe 12.
3 is rotatably inserted through the intermediate shaft 113.
Pin 1 at the tip of arm 113a fixed at one end
13b is the pin 110a of the cam link 110;
The intermediate shaft 11 is connected to the intermediate shaft 11 by a link.
3 reciprocates within a certain angle, and this intermediate shaft 113
The other end has a pin 113 at the tip as shown in FIG.
An arm 113c having a shape d is fixed.

The star wheel 114 has a support pin 112c attached to the upper part of the arm 112b which is installed upright on the bearing pipe 112a.
The star wheel 1 is rotatably supported by
A pin 115a at the other end of the link 115, one end of which is rotatably supported by the boss portion 11 of the rod 11
6, the arm 113c is interlocked with the pin 113d of the arm 113c.

In addition, a torsion spring 117 is interposed between the arms 112b and 113c so that the cam link 110 is constantly pressed against the arm cam 26a, and the link 115 is biased downward, and is held by the boss portion of the link 115. The stopper pin 119 is attached to the star foil 11 via the spring 118 as shown in FIG.
4, and the inclined groove 11 is provided on the plate surface of the star foil 114 and is gradually shallower on the rear side in the direction of rotation.
A one-way rotating crack is formed by press-fitting the head of the stopper pin 119 into the E. In FIG.
The link 115 rising from F to F rotates clockwise to rotate the star wheel 114 by 1/3, and then when the pin 113d descends from F to E, the base pivots on the arm 112b and the torsion spring 1
The stopper 120', which is biased by the stopper 17a, receives the tip of the scraping protrusion of the star wheel 114 under pressure, so the star wheel 114 does not rotate in the opposite direction, and the pin 119 of the one-way rotation clutch slips out of the inclined groove 11. and insert it into the next inclined groove 11,
In the end, the star wheel 114 is driven intermittently by 1/3 rotation in synchronization with the police car 102.

Needle and Door Drive Mechanism In Figures 1 and 2, the boss 42 of the needle 42
a is attached to the tip of the multi-use shaft 40 so as to rotate integrally therewith, and a boss 43 having protruding culm guides 43a, 43a' and stopper arms 43b, 43b is loosely fitted to the multi-use shaft 40 so as to be freely rotatable. There is. Boss 42a
A torsion spring 44 is inserted between the small hole of the boss 43 and the small hole of the boss 43.
is set, and the stopper 42b protruding from the boss 42a of the needle 42 toward the base side is located between the culm guide 43a and comes into contact with the culm guide to maintain the posture shown by the solid line in FIG. Therefore, with the culm guide 43a and the stopper arm 43b not rotating, the needle 42 can rotate approximately 90 degrees from the position shown by the solid line in FIG. 1 to the position shown by the chain line as the multi-use shaft 40 rotates. The needles 42 are configured as shown in FIG. 1 when viewed from the side (in this example, they are a pair, but one or three needles may be used).
Arc-shaped parts 42r, 42r' bundle release action parts 42s, 4
2s', string hanging recesses 42t, 42t' and one claw 42
It consists of string receivers 42v, 42v', etc., which are formed between the two by lengthening w and curved to cover the other short claw, forming a crab claw shape, and when viewed from above, the tip The culm guide 43a is inclined so that the string receiving part 42v of the nodule guide 94 is opposite to the position of the needle passage part of the nodule guide 94.
4 along the end surface 94d.

Further, the main part of the door 49 has a hole in the middle part that fits into the stepped part of the boss 43, and one and the other of the main parts have L-shaped receiving parts formed with the main part, Arc-shaped long holes 49a, 49 bored near both ends of the main part
The door 49 is fixed to the stopper arm 43b by screwing the bolt inserted through a' into the screw hole located in the middle of the stopper arm 43b, and its mounting angle can be adjusted within the range of the long holes 49a and 49a'. By changing the width of the culm collecting portion 7, the size of the bundle can be adjusted.

Operation Timing The crankshaft 26 constantly rotates counterclockwise, and the arm cam 26a rotates approximately 90 degrees, which causes the cam link 110 to rotate clockwise, and the star wheel 11
Turn 4 1/3 turn. During this time, the packer 102 returns with a scraping operation, and then descends along the side of the scraping protrusion of the star wheel 114. When rising, the cam link 110 is in sliding contact with the arcuate portion of the base of the arm cam 26a, so The foil 114 is not rotationally driven. In other words, the tip of the packer 102 passes between the front and rear grain culms partitioned by the raking protrusions of the star wheel 114 in any stroke of reciprocating rotation, so that the grain culms to be supplied are clearly separated and neatly arranged at the door 49. The star foil 114 cooperates with the guide 15 and passes the star foil 114 deep into the supply path 6 to the pack car 102 without leaving a single one.

During such grain culm raking, while the concentrated grain culm on the door 49 does not reach a predetermined amount, the amount of descent of the cushion bar 46 which is pressed upward by the constant pressure spring 47 and supports the stopper 43c, that is, the constant pressure spring 4
7 does not reach the predetermined amount, the one-turn clutch does not engage, and as shown in FIG. 3, the protrusion 35a
29c is maintained in the engaged state, but the amount of compression of the constant pressure spring 47 reaches a predetermined amount and the multi-purpose shaft 40 rotates (rotated from point O to direction A in Figure 4A). When the swing link 35 rotates in the C direction together with the intermediate gear 34 (15 degrees in this example), the protrusion 3
5a comes off from the protrusion 29c of the clutch plate 29.

At that time, the clutch plate 29 is attached to the torsion spring 3.
2 in the counterclockwise direction in FIG. 4, it rotates, and the tapered hole 29b pushes the clutch pin 31. Next, when the police car 102 moves backward, the door 49 and the needle 42 are pushed up by the constant pressure spring 47 and return to their original positions.When the police car 102 descends to the position shown by the solid line in FIG. taper claw 27
The timing is such that the clutch a contacts the clutch pin 31 and the one-turn clutch is engaged.

Operation timing of the needle, knot, and puller After the one-turn clutch is engaged as described above, the cam plate 28a moves to the position a (15 in this example) as shown in FIG.
゜) During rotation, the circumferential surface of the cam plate 28a has an arc shape centered on the axis, so the roller 37
Although the roller 37 is not pressed, the cam plate 28
a, the needle 42 is rotated counterclockwise to the position shown in FIG.
The string is wound around the straw bundle while passing through the back side of the wide part at the tip, and enters into the needle passage part of the knot guide 94.

In this example, when the cam plate 28a is rotating 80 degrees, the drive gear 50 is rotated by the wide tooth 30b of the partially toothed gear 30.
, and drives the building 91 and the holder 84 at the same time.

At this time, the needle 42 is 5° in this embodiment when the stringing is almost completed, and is 21° before the packer 102 is fully compressed, and the cam plate 28a is at 85°.
During the 38° rotation from 123° to 123°, the cam plate 2
Since the guide surface of 8a is an arc centered on the axis, the needle 42 is inserted the most and reaches the holder 84.
It stops until it reaches O in Figure 4 with the tension and string applied to it, and the pack car 102 continues to compress.
During this time, building 91 is driven approximately 63 degrees.

Therefore, while the packer 102 is compressing the grain culm toward the maximum compression point and the needle 42 is stopped in the most inserted state, it is possible to securely bind the grain by pulling the string.

Moreover, even after the maximum compression point, the packer 102 is still driven by the crank motion of the cam arm 26a and is near the bottom dead center, so the amount of return of the packer 102 is extremely small.

That is, while the packer 102 is kept in a compressed state and the needle 42 string is stopped in the most inserted state, the building 91 rotates 130 degrees and finishes pulling the string, so it is tightly tightened without loosening. (See Figure 8-a and Figure 9-a).

Then, when the stop period of the needle 42 ends, the needle 42 begins to return due to the rotation of the cam plate 28a (after rotating 120 degrees) (Fig. 4 O), and at this time, the cam plate 28a
The protrusion 28b of a is the protrusion 3 of the stopper cam 38.
8d and the roller 37 begins to descend, so the relative positions of the teeth of the partially toothed gear 30 and the intermediate gear 34 are regulated, and the teeth begin to mesh smoothly without colliding with each other (Fig. 4). O is just before the bite).

When the cam plate 28a rotates 130 degrees, the protrusion 28b of the cam plate 28a comes into contact with the protrusion 38e of the stopper cam 38, as shown in FIG. Since the teeth 30c and the intermediate gear 64 are in mesh with each other, the torsion spring 39 is further twisted into the state shown in FIG.
is pushed out by the tapered hole 34a of the intermediate gear 34, and the end surface rides on the plate surface of the intermediate gear 34,
Since the other tapered portion 38b is fitted into the tapered hole 38b of the stopper cam 38, the intermediate gear 34 and the swing link 35 are free from each other (the state shown in FIG. 4G).

At this time, the cam plate 28a has rotated 195 degrees,
The needle 102 returns to the O point, and thereafter the intermediate gear 3
4 is driven by the partially toothed gear 30, the needle 42 releases the bundled grain culm from point O, which will be described later, by the discharging portion 42s' of the needle 42 located at the lower position, as shown in FIG. begins to emit.

During that time, when the cam plate 28a rotates 165 degrees, that is, during the clutch switching action by the clutch pin 36, the bill 91 catches the string in its beak, and immediately after that, the knife of the holder 84 cuts the string, and the cam plate When the rotation angle of 28a reaches 205 degrees, the building 91 and holder 84 rotate once, and the cutout tooth 5
0a' is locked and stopped by the cam 30a of the partially toothed gear 30, and when the rotation angle of the cam plate 28a becomes approximately 212 degrees inward or outward, the rear needle 42 moves into the discharge action section 4.
Knotting is performed by pushing out the bundled grain culm with 2s', and then the rotation angle of the cam plate 28a is
When the angle reaches 240°, the star foil 114 is activated.

The needle 42 continues to rotate on the cam plate 28a.
The rotation angle becomes 345° and it stops. At that time, the protrusion 35a of the swing link 35, which was rotating together with the intermediate gear 34, receives the protrusion 29c of the clutch plate 29 and rotates the clutch plate 29 in the opposite direction relative to the cam plate 28a, thereby shifting the taper pawl 27.
Clutch pin 31 which was under pressure by a
is fitted into the tapered hole 29b of the clutch plate 29, and the one-turn clutch is disengaged.

Next, the operation of each part will be explained in more detail.

Clamping and Cutting the Strap When the cam plate 28a rotates 165 degrees as shown in FIG. 9C, the building 91 pinches the cord,
At a rotation angle of 170 degrees, the previously pinched string is separated from the holder 84, and the new string is held by the holder 84 and cut.

Relationship between the return of the needle 42 and the trouser car 102 Figures 4 (K) and 8 (C) show the needle 42 rotating toward the building 91 to wrap the string and then returning to the standby position (the position shown by the solid line in Figure 1). This indicates the moment when the cam plate 28a passes through the O point.
This shows the point in time when the needle 42 has rotated 195 degrees, and the needle 42 is thereby driven further 180 degrees together with the culm guide 43a, door 49, etc., and during this time, the door 49 and the discharge action section 42s' of the needle 42 are used to perform the knot cutting and the needle 42. Performs a releasing action.

Then, when the needle 42 returns to point O, the timing is such that the needle 42 passes behind the packer 102, and the grain culm is not disturbed at all by the needle 42 crossing with the packer 102.

Further, the police car 102 has returned to its original state by the time the star wheel 114 is activated, as shown in FIG.

Grain culm supply and bundle release In FIG. 4 H, FIG. 9 O, and FIG. The door 49 begins to push out the bundle, and eventually the state changes to the state shown in FIG. 9(f), and the bundle jumps out of the collecting culm 7 and enters the discharge state, as shown in FIG. 8(d), at which point the star wheel 114 is driven for the first time.

Needle stop and one-turn clutch intermittent timing The needle 42 is connected to the wide tooth 3 at the end of the partially toothed gear 30.
When 0b finishes driving the intermediate gear 34, the cam plate 2
8a has rotated 345 degrees (15 degrees before returning to point O) as described above, and at this time, the protrusion 35 of the swing link 35
a comes into contact with the protrusion 29c of the clutch plate 29, so when the cam plate 28a rotates another 15 degrees with respect to the clutch plate 29, the clutch pin 31 moves into the tapered hole 29b.
The clutch disengages one turn.

In other words, when the clutch is engaged once, the cam plate 28a rotates 15 degrees after the clutch engages, and then the cam plate 28a rotates by 15 degrees.
The needle 42 is activated by the circumferential shape of a,
When the one-turn clutch is disengaged, the needle 42 stops, the cam plate 28a rotates 15 degrees, and then the cam plate 28a is disengaged.Therefore, when the one-turn clutch is engaged, there is no load, making it possible to engage and engage the clutch extremely easily and accurately, and to ensure strength. It also has the advantage of being lightweight and compact.

Culm Guide, Door, and Constant Pressure Spring The culm guide 43a and the door 49 are integrated by screwing the door 49 onto the stopper arm 43b, and the stopper 43c or 4
3c' by a cushion bar 46 supported by a constant pressure spring 47;
It forms one side of the culm guide 43a or the culm collection part 7, and prevents the bundle from acting as resistance when the needle 42 performs the string winding action.

In addition to operating the one-turn clutch, the door 49 also has the function of holding the bundle against packer pressure via a constant pressure spring 47 to improve the tightness of the bundle. 42
The collecting culm part 7 is held while the string returns to point O shown by the solid line after the stringing, but when the bundle is released after that, the needle 42 and the door 4 are held together as shown in Fig.
9 rotate together to open the discharge path 8.

Immediately before the needle 42 rotates 180 degrees from point O and stops, the stopper 43c or 43c' rides on the head while tilting the cushion bar 46 and stops.

Drive and connection of bill and holder Bill 91 and holder 84 are three-point mesh gear 70
The needles 42 are simultaneously driven by the needles 42 and eject the bundle in the retracting direction. That is, since the knot removal direction is the needle retraction direction, the bill 91 is made to diagonally cross the string guide groove of the knot guide 94 and opened opposite to the direction in which the needle 42 enters, as shown in FIGS. 9A and 9B. It became possible to stop the vehicle in a state where it was stopped.

Furthermore, since a play is provided between the bill 91 and the bill shaft 91a during pruning, when the bundle is pushed out by the discharge action section 42s' of the needle 42 acting as a discharge arm and the door 49, the Since it rotates from the position shown by the chain line to the position shown by the solid line in Figure 9 F, the knot removal can be performed more easily.After the knot removal is completed, the building 91 is pressurized by the building pressing plate 73, so the position shown by the chain line Return to the indicated position.

Supplying String to the Needle The string receiving part 42v at the tip of the needle 42 is opened in the shape of a crab claw or a ten-handed shape, and separates from the string when releasing the bundle.

Therefore, the annular string supply port 14 is connected to the shaft of the needle 42 as described above, in order to supply the string to the needle 42 rising from below when releasing the bundle, and to receive the grain culm supplied after the release with the string. The needle 42 is attached to the boss 15a of the guide 15 on the opposite side of the passageway and diagonally crosses the rotation locus of the string receiver 42v of the needle 42 (FIG. 8, F'). While the needle is rotating toward the standby position (the upper position shown by the solid line in FIG. 1), guide the string diagonally stretched across the needle arc-shaped portion 42r' in the plane shown by the chain line in FIG. Finally, it enters the string receiving part 42v' and becomes the state shown in FIG. 8F.

Further, when the string is wound by the needle 42, the needle 42 guides the string pulled out from the string supply port 14 so as to pull it away from the building 91 and the holder 84 as shown in FIG. 8A''.

In addition, in the drawing, 9 is a frame, 9c is a pipe,
10a is a base, 10b is a support metal, 10c is a pin, 15b is a mounting portion, 16 is a connecting rod, 24a is a rotating body, 26c is a small diameter portion, 29d is a small hole 45 is a bracket, 48 nut, 48' is a double nut, 1
12e is a window, 127 is a brake pin that operates a torque limiter, 128 is a fixed part, 128c is a pressing part, 128d, 128e are nuts, 129 is a threaded handle, 130, 133 are bolts, 13
1 is a compression spring, 132 is a double nut, and 134 is a lock nut.

Since the present invention is configured as described above, when the needle is stopped in the most inserted state, the knot part is pulled by the string, thereby firmly binding and reliably preventing the culm from coming off or coming apart. I can do it.

In particular, since the tying string is held in the most inserted state of the needle at the beginning of the string pulling at the knotted portion, it is possible to reliably prevent tying errors due to the string coming off.

[Brief explanation of the drawing]

The drawings show one embodiment and related configurations, in which Fig. 1 is a side view of the binding machine, Fig. 2 is an exploded sectional view of the transmission part, Fig. 3 is a right side view with the case cover removed, and Fig. 3 is a side view of the binding machine. Figure 4 is a drawing showing the operating sequence of the transmission part,
FIG. 5 is an exploded perspective view of the transmission part, FIG. 6 is a side view of the one-turn clutch and interlocking mechanism, FIG. is a diagram of the state in which a string is hung on the needle,
A' is an enlarged view of the needle string receiving part, A'' is a view of the action of the thread hanging, Figure 9 A to A are action views showing the relationship between the knotted state and the door and the trouser car, and G is a front view of the conventional knotted part. 7... Collection culm, 26... crankshaft, 30... partially toothed gear, 40... multi-use shaft, 42... needle, 47... constant pressure spring, 70... three-point meshing gear, 84... holder, 9
1... Bill, 100... Patscar axis, 102... Patscar, 114... Star foil.

Claims (1)

[Claims] 1. A packer that is constantly driven by a drive shaft via a link, a one-turn clutch that is activated when the packer collects a certain amount of grain culm on a collecting culm, and a knotter that is intermittently operated via the one-turn clutch. A tying device having a needle part, characterized in that the needle and the knot part are interlocked so that when the knot part pulls the string, the needle is stopped in the most inserted state.