JP2008136379A - Harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a harvester (combine harvester) capable of widening a reaping range including varying the number of reaping rows of grain culms. <P>SOLUTION: The tip of a reaping apparatus 6 is furnished with a pretreatment section 6a disposed with multiple dividing tools 7 in parallel. The pretreatment section 6a is made slidable transversely relative to the traveling direction of the harvester, and there provided are a junction mechanisms (21-25) functioning to turn the respective tips of the dividing tools 7 interlockingly with the sliding motion of the pretreatment section 6a. In particular, when the junction mechanisms (21-25) function to turn the tip of the dividing tool 7 at the right end to the right further, grain culms of an extra one row can be reaped compared to the case with normal reaping operation. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a harvester such as an agricultural combine harvester that performs a grain harvesting operation or the like.

An explanation will be given below using a combine as an example of an agricultural harvester.
When the combine starts the harvesting and threshing operation, the cereal straw in the field is subjected to weeding action by the weeding tool located at the lower front end of the harvesting device, and then the cedar pulling device is raised to bring it up from the lying state to the upright state. Then, the stock of the cereal reaches the cutting blade and is harvested, and is inherited by the supply / conveying device of the cereal, and sequentially conveyed upward in the rear part.

  The handling depth of the cereals conveyed to the rear part of the cereal supply / conveyance device is adjusted, and then supplied from the feed chain to the threshing device and threshed by the teeth of the barrel that rotates in the threshing device. Then, the threshing product is subjected to a sorting process in the sorting room, and the grain that has been threshed is temporarily stored in the Glen tank, and when the amount of stored grain increases, the grain is carried out of the combine by the auger.

There exists a combine which has the structure which can move a mowing apparatus to right and left toward the advancing direction so that it may exist in following patent document 1. FIG.
Japanese Patent Laid-Open No. 11-253022

  By using a combine that can move the harvesting device described in Patent Document 1 to the left and right, the left and right positions of the harvesting work area of the crop (planted culm) on the field can be changed to adjust the area.

However, the change of the cutting work area of Patent Document 1 is merely moving the preprocessing unit to the left and right by the parallel link mechanism provided in the cutting apparatus, and the cutting work area change width is not so large. Moreover, it is not possible to change the number of harvested ridges.
The subject of this invention is providing the harvester (combine) which can enlarge the width | variety of a cutting work area | region including the change of the number of cuttings of a grain straw.

The above-described problems of the present invention are solved by the following configuration.
According to the first aspect of the present invention, there is provided a harvesting machine provided with a harvesting device (6) for harvesting a planted crop in the field, in front of the machine frame (2), and a weeding is provided at a front portion of the harvesting device (6). A pre-processing unit (6a) in which a plurality of tools (7) are arranged in parallel is provided, and the pre-processing unit (6a) is provided so as to be slidable at least in the left-right direction with respect to the harvesting machine traveling direction, and the pre-processing unit (6a) ) In conjunction with the slide in the left-right direction, the harvesting machine is provided with connecting means (21-25) for rotating the tip of the weeding tool (7).
According to a second aspect of the present invention, the connecting means (21 to 25) moves the tip of the right end weeding tool (7) further to the right side in conjunction with the rightward sliding of the pretreatment part (6a). The harvesting machine according to claim 1, further comprising a rotating structure.

  According to invention of Claim 1, the interlocking means (21-21) which the front-end | tip of a weeding tool (7) rotates in response to the slide to the left-right direction of the pre-processing part (6a) of a cutting device (6). 25), for example, when the pretreatment part (6a) is slid to the right, the weeding tool (7) opens, so that the pretreatment part (6a) of the mowing device (6) is not slid. A wider range of cereals can be harvested compared to when the grass tool (7) is closed.

  According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, when the preprocessing part (6a) slides in the right direction, the connecting means (21-25) Since the tip of the right end weeding tool (7) is further rotated to the right side, it is possible to cut the cereals by an extra portion.

An embodiment of the present invention will be described below with reference to a drawing, using a combine as an example of a harvester as an example.
FIG. 1 is a left side view of a combine that performs a grain harvesting operation according to an embodiment of the present invention, FIG. 2 is a front view of the combine, FIG. 3 is a plan view of the combine, and FIG. It is a bottom view of the combine which mainly represented. In this embodiment, the left and right directions are referred to as left and right, respectively, and the front and rear directions are referred to as front and rear, respectively, in the forward direction of the combine.

  A crawler 4 formed into an endless belt made of a flexible material such as rubber is provided at the lower part of the fuselage frame 2 of the combine 1 shown in FIG. 1 so that it can travel without sinking in a wet field as well as a dry field. The cutting device 6 is mounted on the front portion of the body frame 2, and the threshing device 15 is mounted on the upper portion of the body frame 2.

  After the engine (not shown) is started, when the combine 1 is moved forward by the main transmission lever 20a and the mowing / threshing clutch (not shown) is turned “ON”, the mowing work and the threshing work are started. The grain culm planted in the field is subjected to weeding action by a plurality of weeding tools 7 at the lower front end of the reaping device 6 and then brought into an upright state if it is in the lying state by the raising action of the culm raising device 8. Thus, the cereal stock reaches the cutting blade 11 (FIG. 4) and is cut.

  A member including the plurality of weed cutting tools 7 and the culm pulling device 8 arranged in parallel in the reaping device 6 of the present embodiment will be referred to as a preprocessing portion or a reaping preprocessing portion 6a. On the rear side of the pre-processing unit 6a, a cereal supply / conveying device 12 that takes over the harvested cereal to the feed chain 14 is provided. The pretreatment unit 6 a is a movable structure that can slide to the left and right, and the rightmost weeding tool 7 among the plurality of weeding tools 7 arranged in parallel is to the left and right of the preprocessing unit 6 a of the reaping device 6. It can be further rotated by remote control in conjunction with the slide.

5A and 5B show a left / right slide mechanism of the pre-processing unit 6a of the reaping device 6. FIG.
As shown in FIG. 5, a reaping device lower frame 60 is attached to the front end side of the reaping device support frame 13 that moves the reaping device 6 up and down by extending and contracting the hydraulic cylinder 17. The reaping device lower frame 60 is a transmission cylinder member extending in the left-right direction. The reaping device lower frame 60 is provided with a plurality of weed ridges 61 extending in the front-rear direction. A grass tool 7 (shown in FIG. 5 shows a case in which three weed tools 7 are arranged in parallel) is attached.

  The reaping device 6 is attached to the reaping device lower frame 60 so as to be movable in the left-right direction with respect to the reaping device support frame 13 via a parallel link mechanism. A base portion of the mounting member 62 protruding to the left side in the traveling direction of the combine 1 is fixed to the distal end side of the cutting device support frame 13, and the base portion of the left link arm 63 is pivoted by the mounting shaft 62 a at the distal end of the mounting member 62. To wear. Further, the lower frame 60 of the reaping device is pivotally attached by the attachment shaft 63 a at the tip of the left link arm 63. A bearing is interposed between the attachment portions of the attachment shaft 62a and the attachment shaft 63a.

  Further, the base 66a of the right link arm 66 is rotatably attached to the tip of the cutting device support frame 13 via the connection frame 65, and the tip of the right link arm 66 is freely rotatable to the upper surface side of the lower frame 60. Install. The right link arm 66 also serves as a transmission case such as the cutting blade 11, and a transmission shaft (not shown) in the lower frame 60 is provided in the right link arm 66 via a transmission mechanism provided in the support frame 13. Further, the cutting blade 11 is engaged with a bevel gear (not shown) for driving the cutting blade 11 (FIG. 4), and the rotation is transmitted to them.

  The lower frame 60 and the mounting member 62, and the left link arm 63 and the right link arm 66 connecting them constitute a parallel link mechanism, and the mounting shaft 62a and the right link arm 66 for mounting the base portion of the left link arm 63 are formed. The base 66a serves as a rotation center on the fixed side, and the attachment shaft 63a of the left link arm 63 with the lower frame 60 and the output shaft 66b of the right link arm 66 serve as the rotation center on the movement side, so that the lower frame 60 is moved sideways. Arrange for parallel movement.

  Further, a lock device 69 is provided so as to fix the position on the lower frame 60 side with respect to the reaping device frame 13 at a predetermined slide position. The lock device 69 is configured to prohibit the pre-cutting processing portion 6a from sliding in the left-right direction, and a semi-cylindrical plate 60a having a predetermined radius around the rotation axis of the right link arm 66 is attached to the lower frame 60. A plurality of holes (not shown) are provided in the radial direction of the cylindrical plate 60a. On the lower frame 60 located outside the semi-cylindrical plate 60a, a pin 69b that can be inserted and removed toward the hole and a support member 69c for the pin 69b are attached to the tip of the wire 69a. Further, since the pin 69b is always urged by the spring 69d so as to be pulled to the opposite side (half-cylindrical plate 60a side) of the pin support member 69c, the pin 69b is maintained inserted through the hole of the semi-cylindrical plate 60a. . For this reason, in the normal state, the right link arm 66 and the lower frame 60, which are fixedly supporting the semi-cylindrical plate 60a, are locked so as not to rotate, and the locked state is maintained.

  However, as shown in the front view of FIG. 5 (c), a lock release lever 69e and a fixed grip 69f are provided on the top of the grain raising device 8 within the reach of the cockpit 20, and the fixed grip 69f side When the lock release lever 69e is pulled, the pin 69b is pulled by the wire 69a and comes out of the hole of the semi-cylindrical plate 60a, so that the pre-cutting processing unit 6a can slide to the right and left.

  In the structure of the present embodiment, the weeding tool 7 on the right crawler 4 side has a mechanism that can be manually opened and closed as will be described below, so that the pretreatment unit 6a of the reaping device 6 is slid to the right to further cut the weeds. When the tool 7 is opened, the reaper can be trimmed by one extra line without sliding the mowing device 6 compared to when the weeding tool 7 is closed.

  FIG. 6 shows an opening / closing mechanism diagram of the weeding tool 7. 6 (a) is a plan view of the opening / closing mechanism, and FIG. 6 (b) is a view showing the interlocking relationship between the side view of the opening / closing mechanism and the opening / closing lever 18 of the pre-cutting processing unit 6a. In addition, although the external shape of the weeding implement 7 is abbreviate | omitted in the top view of Fig.6 (a), the external shape of the weeding implement 7 was shown with the dashed-dotted line in FIG.6 (b).

  Although only a few of the weeding tools 7 that are pivotally attached to the tip of the weed hoe 61 are shown in FIG. 6, a spring mounting portion 21 integrated with the weeding tool 7 is attached to the tip of the weed hoe 61. It rotates in the left-right direction around the provided rotation shaft 21a. The springs 22 and 23 are connected to the left and right ends of the spring mounting portion 21, respectively, and one spring 23 is connected to the wire 24. Yes. Therefore, by pulling the wire 24, the closing position of the weeding tool 7 in the normal state, in which the weeding tool 7 on the right crawler 4 side is indicated by a solid line, is represented by a one-dot chain line in FIG. The weeding tool 7 can be turned up to.

  For example, when the opening / closing operation of the weeding tool 7 is linked to the left / right slide mechanism of the pre-processing unit 6a of the reaping device 6, for example, when the left / right slide mechanism is slid to the right, the wire 24 is pulled to the right end. Can be automatically operated from the closed position to the open position.

  Further, as shown in FIG. 6B, when a weeding tool opening / closing lever 18 provided at the cockpit 20 is provided and the wire 24 is pulled by the lever 18, the weeding tool opening / closing lever 18 is operated. Thus, when the weeding tool 7 on the right crawler 4 side is opened and closed, the weeding tool 7 can be manually opened and closed.

  In addition, the pre-processing unit 6a of the normal reaping device 6 is slid to the left side to perform the reaping operation in the case of performing so-called reaping, in which the cereal is reaped while turning around the field from the outside to the inside. There is a case of so-called mid-cutting, in which the planted cereal group in the field goes straight and bisects the established cereal group.

  As described above, when the pre-processing unit 6a of the reaping device 6 is slid to the right, the weeding tool 7 at the right end opens, so that, for example, when the middle splitting is performed, it is possible to cut cereals by one line, and the right crawler 4 can reduce the amount of treading of cereals.

  Further, conventionally, after the right slide operation of the pre-processing unit 6a of the reaping device 6, two operations of moving the weeding tool 7 from the closed position to the open position are necessary, but FIG. 6 (b). If the configuration in which the wire 25 connected to the left link arm 63 of the slide mechanism of the pre-processing unit 6a shown in FIG. Can be opened (see FIG. 4). Further, when the pre-processing unit 6a that has been operated to slide right is moved to the left and returned to the normal position, the weeding tool 7 is returned to the original closed position by the spring 22.

  As described above, the operation of linking the opening / closing of the weeding tool 7 with the left / right sliding operation of the preprocessing unit 6a of the reaping device 6 can be performed at the cockpit 20 by the mounting shaft 62a. The cutting width of the reed can be increased.

  The cereals harvested by the reaping device 6 are conveyed to the threshing device 15 while adjusting the depth of handling. The threshing device 15 has a feed chain 14 on the side of the machine body, and after threshing the cereal with a handling cylinder (not shown), the grain selected from the culling or the like is the first milling cylinder 16 ( It is conveyed to the Glen tank 9 via FIG. The grains stored in the Glen tank 9 are conveyed to the outside of the combine 1 via the auger 19.

The combine of this embodiment is provided with a parking brake mechanism described below. The parking brake mechanism of the present embodiment is provided with a configuration that relieves shock when the parking brake is released.
7A is a side view of the parking brake pedal portion, FIG. 7B is a plan view of the parking brake pedal portion, and FIG. 7C is a front view of a part of the transmission case. A parking brake pedal 26a is disposed at the lower left of the operation seat 20.

  The parking brake pedal 26a is on the free end side of the brake pedal arm 26 made of a curved arm member having a pivot point on the body frame 2, and has a pedal surface on which a foot is placed. The curved lock arm 27 that rotates integrally with the brake pedal arm 26 has a locking projection 27a. One end of the long plate 28 is rotatably connected to an intermediate portion of the lock arm 27 between the locking projection 27a and the rotation fulcrum 27b.

  The other end of the long plate 28 is rotatably connected to one end of the brake arm 30, and the other end of the brake arm 30 is rotatably supported on the body frame 2 side. In addition, a spring 31 having one end locked to the body frame 2 side is connected to an intermediate portion of the lock arm 27 to which one end of the long plate 28 is connected via a support member 27c. 26 is urged in the direction opposite to the arrow A.

  Brake slippers 32, 32 are attached to both sides of the long plate 28, one of which is provided between the long plate 28 and the brake arm 30, and the long plate 28 is interposed via the brake slipper 32 and the spring 34. It is fastened with a bolt 35 and double nuts 36, 36.

  A tip portion of a wire 38 connected to the main transmission lever 20a of the cockpit 20 is connected to an upper portion of the locking plate member 37 that is pivotally supported by the shaft 37a on the body frame 2 side. One end of a spring 39 is supported on the lower end portion of the locking plate member 37, and the other end of the spring 39 is supported on a stay 52 that serves as an outer receiver for the wire 38. A rearwardly facing locking portion 37 b formed on the upper end portion of the locking plate member 37 has a shape that can be locked to the locking protrusion 27 a of the lock arm 27.

  The position restricting member 40 is provided on both the left and right sides of the locking portion 37b at the upper end portion of the locking plate member 37, and guides the locking member 37 so as to sandwich the locking member 37 from both the left and right sides. The protrusion 27 a has a function of restricting the left and right positions so that the protrusion 27 a can reliably engage with the locking portion 37 b of the locking plate material 37.

  When the parking brake mechanism configured as described above is depressed, the brake pedal arm 26 rotates in the direction of arrow A in FIG. 7A, and the lock arm 27 also rotates in the direction of arrow B. Thereby, the one end side of the wire 29 connected with the intermediate part of the lock arm 27 is pulled, and a parking brake (not shown) is applied. When the locking projection 27a is fitted in the locking portion 37b of the locking plate member 37 by the rotation of the lock arm 27 in the direction of the arrow B, the parking brake is maintained in an activated state.

  Further, when the main transmission lever 20a is moved to the neutral position and then moved to the left and right, the wire 38 is pulled and the locking plate member 37 is rotated in the direction of arrow C, so that the locking portion 37b of the locking member 37 and the locking protrusion 27a. When the locking is lost, the lock arm 27 portion on the locking projection 27 a side is rotated in the direction opposite to the arrow B by the spring 31. At this time, the brake slipper 32 between the long plate 28 and the brake arm 30 is rotated. The long plate 28 and the brake pedal arm 26 move slowly.

  FIG. 7C is a front view of a part of the mission case 41. The left and right arms 43, 43 are fixed to the projecting ends of the shifter shafts 42, 42 that shut off the left and right side clutches (not shown) provided in the mission case 41, and are attached to one end of the left and right arms 43, 43. The long holes 44 a, 44 a of the link arms 44, 44 are engaged with pins 45, 45, and the other ends of the left and right link arms 44, 44 are pivotally attached to the upper and lower ends of the rotating arm 46. The rotating arm 46 is configured to be rotatable about an intermediate shaft 46a. The other end of the wire 38 is connected to the upper end of the rotating arm 46, and the parking brake pedal 26a is stepped on so that the wire 38 When pulled, the left and right arms 43 and 43 are rotated in the opposite direction via the left and right link arms 44 and 44 by the rotation of the rotation arm 46, and the left and right side clutches (not shown) in the transmission case 41 are disconnected. In addition, the left and right side brakes are applied and the parking brake acts.

  8 (a) is a side view of the parking brake pedal 26a portion, FIG. 8 (b) is a plan view of the parking brake pedal 26a portion, and FIG. 8 (c) is an arrow A in FIG. 8 (a). Fig. 7 shows an arrow view from each direction.) Fig. 7 is different from Fig. 7 in which the brake is applied when the lever arm 49a of the parking brake lever 49 returns to the original position, and the shock is released when the brake is released. The example of a structure is shown.

  When the parking brake pedal 26a is operated to a position where the parking brake acts, the locking protrusion 27a of the lock arm 27 described above as a member for locking the parking brake pedal 26a at that position is engaged with the locking protrusion 27a. A locking portion 37b of the locking plate material 37 to be mated is provided. The position restricting member 40 is provided on both the left and right sides of the locking portion 37b at the upper end portion of the locking plate member 37, and guides the locking member 37 so as to sandwich the locking member 37 from both the left and right sides. The protrusion 27 a has a function of restricting the left and right positions so that the protrusion 27 a can reliably engage with the locking portion 37 b of the locking plate material 37.

  A parking brake lever 49 capable of manually operating the parking brake pedal 26a is disposed on the right side of the operation seat 20, and an outer end portion of the rotation fulcrum 27b of the parking brake pedal 26a and a stay 54 for attaching the safety switch 53 are provided. Are connected by a plate 52a. Brake material that contacts the brake pedal arm 26 only when the brake pedal arm 26 returns to its original position on the plate 52b that connects the rotating boss 51 of the brake lever 49 and the stay 54 for attaching the safety switch 53. 56 is attached. The brake member 56 has a structure in which a pin 56a is inserted into a hole formed in the stay 52 and is prevented from coming off by a double nut 56b, and a round head 56a1 of the pin 56a is pressed and biased toward the brake arm 30 by a spring 56c. is there. Thereby, when the parking brake pedal 26a is unlocked, the shock when the parking brake lever 49 returns is reduced.

  Another configuration example for reducing the shock when the brake is released will be described. FIG. 9 (FIG. 9A shows a partially cutaway side view of the parking brake pedal portion, and FIG. 9B shows a partially cutaway plan view of the parking brake pedal portion). A configuration example in which 58 is arranged on the stay 54 is shown. The stopper portion 33 provided integrally with the side surface of the lock arm 27 is rotated by stepping on the parking brake pedal 26a and comes into contact with the head of the bolt 58, thereby positioning the stepping limit position of the parking brake pedal 26a. It is a configuration. In this way, the safety switch 53 is turned on at a position immediately before the parking brake pedal 26a reaches the depressing limit position, and the engine can be started.

  A hole 28a at the front end of the long plate 28 provided for attaching the brake arm 30 to the long plate 28 is defined as a long hole. A stopper 50 of the brake arm 30 is disposed on a plate 52b that connects the stay 54 to which the safety switch 53 and the like are attached and the rotating boss 51 of the brake lever 49. The stopper 50 has a structure in which an elastic body such as rubber is attached to the upper surface of a stay 55 provided at the front upper portion of the plate 52b, and the plate 64 provided on the inner surface of the brake arm 30 serves as an elastic body of the stopper 50. In this configuration, the rotation of the brake arm 30 and the parking brake lever 49 is restricted by contact.

  When the parking brake lever 49 is turned, the lock arm 27 is pulled in the arrow B direction by being pulled by the long plate 28 and the parking brake pedal 26a is turned in the arrow A direction. The parking brake pedal 26 a is locked by the locking plate member 37.

  Thus, when the parking brake lever 49 is operated to lock the parking brake pedal 26a, the parking brake lever 49 does not rotate for the entire stroke due to the hole 28a being a long hole. Return to the neutral position. Therefore, when the main transmission lever 20a is operated left and right at the neutral position to release the lock of the parking brake pedal 26a, the amount of movement of the parking brake lever 49 returning to the neutral position is reduced. Shock due to sudden neutral return is reduced. And since the said plate 64 is contact | abutted and buffered by the elastic body of the stopper 50, the shock at the time of parking brake cancellation | release can further be reduced.

In the combine of the present embodiment, FIG. 10 shows a combine provided with a handle gripped by the operator on the combine shown in FIG.
As shown in FIG. 10 (FIG. 10 (a) is a front view of the cockpit portion, and FIG. 10 (b) is a right side view of the cockpit portion), the steering means is a gate-shaped handle 73, and is integrated with the handle 73. A mirror 75 for confirming safety at the rear is attached to the stay 74 that has become, and a right turn signal 76 for informing the turning direction to the stay 74 above the upper end of the mirror 75 is disposed.
Since the winker 76 and the mirror 75 are both disposed outside the outermost surface of the handle 73, the visibility of the mirror 75 and the winker 76 can be kept good.

  Further, a mirror 75 and a blinker 76 on the right side for notifying the turning direction are attached to a stay 74 integrated with the gate-shaped handle 73, the blinker 76 is attached above the grip of the parking brake lever 49, and the mirror 75 The mirror surface is disposed between the rear surface of the front panel and the grip of the parking brake lever 49 when the body is viewed from the side. Therefore, the grips of the mirror 75 and the parking brake lever 49 overlap in the vertical direction, and the operability of the parking brake lever 49 can be kept good while keeping the visibility of the mirror 75 good, and the width of the fuselage There is an advantage not to make it unnecessarily large.

  Further, the winker 76 is arranged before the position where the grip of the steering lever 20b is tilted forward, so that the steering lever 20b does not contact the winker 76 even when the steering lever 20b is at the maximum forward tilt position. Can keep good.

  Since the cutting width of the planted crop can be increased according to the present invention, the cutting work can be easily performed according to the size of the field and the like, and the possibility of use as a combine is high.

It is a side view of the combine which performs the harvesting operation | work of the grain of embodiment of this invention. It is a front elevation view of the combine of FIG. It is a top view of the combine of FIG. It is a bottom view of the combine of FIG. FIGS. 5A and 5B are diagrams for explaining a left and right sliding mechanism of the combine harvester of FIG. 1 (FIGS. 5A and 5B are plan views and FIG. 5C are front views). FIG. 6 (a) is a plan view of the opening / closing mechanism, and FIG. 6 (b) is a diagram showing the interlocking relationship between the side view of the opening / closing mechanism and the opening / closing lever of the pre-processing unit. ). 1 is a side view (FIG. 7 (a)) of the parking brake pedal portion of the combine of FIG. 1, a plan view (FIG. 7 (b)) of the parking brake pedal portion, and a front view (FIG. 7 (c)) of a part of the transmission case. is there. 1 is a side view of the parking brake pedal portion of the combine of FIG. 1 (FIG. 8A), a plan view of the parking brake pedal portion (FIG. 8B), and an arrow view from the direction of arrow A in FIG. (FIG. 8C). FIG. 9 is a partially cutaway side view (FIG. 9A) of the parking brake pedal portion of the combine of FIG. 1 and a partially cutaway plan view of the parking brake pedal portion (FIG. 9B). It is a front view (FIG. 10 (a)) of the cockpit part of the combine of FIG. 1, and the right view (FIG.10 (b)) of a cockpit part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Combine 2 Airframe frame 3 Traveling device 4 Crawler 6 Mowing device 6a Pre-processing part 7 Weeding tool 8 Grain raising device 9 Glen tank 11 Cutting blade 12 Grain supply and conveyance device 13 Mowing device support frame 14 Feed chain 15 Threshing device 16 First cereal cylinder 17 Hydraulic cylinder 18 Open / close lever 19 Auger 20 Pilot seat 20a Main transmission lever 20b Steering lever 21 Spring mounting part
21a Rotating shaft 22, 23 Spring 24, 25 Wire 26 Brake pedal arm 26a Parking brake pedal 27 Lock arm 27a Locking protrusion 27b Rotating fulcrum 27c Support member 28 Long plate 28a Hole 29 Wire 30 Brake arm 31 Spring 32 Brake slipper 33 Stopper portion 34 Spring 35 Bolt 36 Nut 37 Locking plate material 37a Shaft 37b Locking portion 38 Wire 39 Spring 40 Position restricting member 41 Mission case 42 Shifter shaft 43 Arm 44 Link arm 44a Long hole 45 Pin 46 Rotating arm 46a Shaft 49 Parking brake lever 49a Lever arm 50 Stopper 51 Rotating boss 52 Stay 52a Plate 52b Plate 53 Safety switch 54 Stay 55 Stay 56 Brake material 56a Pin 6b Double nut 56c Spring 58 Bolt 60 Mower lower frame 60a Semi-cylindrical plate 61 Weeding rod 62 Mounting member 62a Mounting shaft 63 Left link arm 63a Mounting shaft 64 Plate 65 Connection frame 66 Right link arm 66a Right link arm base 66b Output shaft 69 Locking device 69a Wire 69b Pin 69c Pin support member 69d Spring 69e Unlocking lever 69f Fixed grip part 73 Gate-shaped handle 74 Stay 75 Mirror 76 Winker

Claims (2)

In a harvesting machine in which a harvesting device (6) for harvesting a planted crop in the field is provided in front of the body frame (2),
A pre-processing unit (6a) in which a plurality of weeding tools (7) are arranged in parallel is provided at the front of the cutting device (6), and the pre-processing unit (6a) is at least in the left-right direction with respect to the harvesting machine traveling direction. Provide slidable,
A harvesting machine, comprising linkage means (21-25) for rotating the tip of the weeding tool (7) in conjunction with the slide in the left-right direction of the pretreatment part (6a).   The linking means (21 to 25) is configured to rotate the tip of the right weeding tool (7) further to the right in conjunction with the slide of the pre-processing unit (6a) in the right direction. The harvesting machine according to claim 1, wherein:

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