JP6614264B2 - Combine - Google Patents

Description

  The present invention relates to a combine equipped with a feed chain that supplies cereals harvested by a reaping device to a threshing device.

  For harvesting of the combine, the feed that feeds the harvested cereal rice cake to the threshing device by the conveying device with the harvesting device equipped at the front while the combine is running, and the harvested cereal rice cake in the field is harvested. Normal mowing and threshing work, in which threshing takes place while taking over to the chain and auxiliary culvert, and auxiliary workers mow the napped cereals at the edge, and the reaped cereals are placed on the feed chain for threshing There is a handling work.

  Conventionally, in order to efficiently perform the handling operation by an auxiliary worker, the handling plate extending above the feed chain during the handling operation is vertically swung to the rear end portion of the frame of the reaping device. Provide an auxiliary pin that extends above the feed chain during normal mowing and threshing work and opens the top of the feed chain at the front end of the threshing device so that it can swing vertically. A configuration (Patent Document 1) has been proposed.

  Also, in order to simplify the combine transmission mechanism and facilitate assembly, a transmission mechanism is provided that branches into a transmission path that transmits the rotation of the engine to the traveling device and a transmission path that transmits to the mowing device and the threshing device (patent) Document 2), a transmission mechanism (Patent Document 3) is provided that branches into a transmission path for transmitting the rotation of the engine to the traveling device and the reaping device and a transmission path for transmission to the threshing device.

JP 2001-258372 A Japanese Patent Laid-Open No. 5-199812 Japanese Patent Laid-Open No. 11-253039

  However, in the configuration of Patent Document 1, when changing from the normal mowing and threshing operation to the handling operation, the auxiliary scissors are moved upward to open the upper part of the feed chain, and the handling plate is moved downward. There is a problem that it is necessary to perform a complicated work of moving to the upper part of the feed chain and increasing the work load on the auxiliary worker. In addition, since the auxiliary clamp is located above the front part of the feed chain, a large work space cannot be secured above the feed chain. There is a problem that work cannot be performed efficiently.

  In addition, the transmission mechanism of Patent Document 2 is such that the rotation transmitted to the feed chain that supplies the culm to the reaping device and the threshing device is output from a common hydraulic continuously variable transmission, so the drive speed of the feed chain Cannot be set independently with respect to the driving speed of the reaping device, and the supply rate of the cereal to the threshing device cannot be optimized. In addition, because the output shaft of the gear box that increases and decreases the rotation of the hydraulic continuously variable transmission and transmits it to the feed chain is projected toward the inside of the fuselage, the parts of the transmission mechanism from the gear box to the feed chain There is a problem that the number of points increases and the installation space cannot be saved.

  Furthermore, since the transmission mechanism of Patent Document 3 transmits the feed chain from the sorting unit of the threshing device via the continuously variable transmission, there is a problem that the transmission efficiency of the feed chain is low.

  Therefore, a main problem of the present invention is to eliminate such problems and improve the safety of handling work by an auxiliary worker.

  The present invention that has solved the above problems is as follows.

The invention described in claim 1 includes a threshing device (3) disposed behind the reaping device (4) and a handle (1) formed on one side of the handling chamber (50) of the threshing device (3). 26B), and a harvesting device (4) comprising a feed chain (12B) disposed along the upper side of the feed chain (12B) and a clamping rod (12A) disposed facing the upper side of the feed chain (12B). A hand-handling restricting member (40) having a plate portion (42) in the up-down direction extending rearward from the conveyance terminal end side, and a front portion of the hand-handling restricting member (40) are vertically rotated. The support part (44) which supports freely, and the grain straw conveyed to the feed chain (12B) from the conveying device (34) on the reaping device (4) side is sandwiched between the feed chain (12B). rear auxiliary provided clamping扼杆(43), rowing the hand during normal reaper threshing work The rowing regulating member while reducing the distance between the front of the rear and the clamping Ji杆of the braking member (40) and is rotated downward該手Threshing regulating member (40) (12A) (40) The plate portion (42) provided in the above is positioned above the rear auxiliary sandwicher (43) in a side view of the machine body, and the placement of the hand-held cereals on the front portion of the feed chain (12B) is restricted. that the regulating state, the the rear of the threshing hand regulating member (40) and the pivoted upward threshing the hand during rowing work regulating member (40) interposed Ji杆front and of (12A) The interval can be expanded and the upper side of the rear auxiliary clamp (43) can be opened to switch to a non-regulated state in which the handling grain can be placed on the front of the feed chain (12B). A switch (46) that is pressed during handling operation, and the switch (46) is pressed. Is combined, characterized in that a configuration switch to rowing mode.

  According to a second aspect of the present invention, the feed chain (12B) is driven at a constant speed when the switch (46) is pressed to switch to a handling mode. It is a combine.

According to the first aspect of the present invention, during normal reaping and threshing work, the hand handling restriction member 40 having the vertical plate part 42 is rotated downward to hold the rear part of the hand handling restriction member 40 and the clamping rod. The distance between the front portion of 12A and the plate portion 42 provided in the handling restriction member 40 is positioned above the rear auxiliary clamp 43 in a side view of the machine body and is connected to the front portion of the feed chain 12B. on state in which rowing placement of culms is restricted, prior to the rear and Kyoji杆12A of the regulating member 40 rowing hand during rowing work rotationally operated upward rowing regulating member 40 The structure which can be switched to the non-regulated state which expands the space | interval with a part and open | releases the upper side of the rear side auxiliary pinch 43, and accept | permits the placement of the hand-held grain basket on the front part of the feed chain 12B As a result, auxiliary workers in the state of harvesting while traveling It is possible to enhance the whole sex. Moreover, a large space for handling work can be secured above the feed chain 12B, and the efficiency of handling work can be increased. Further, a switch 46 that is pressed at the time of handling operation is provided, and the switch 46 can be switched to the handling mode by pressing this switch 46.

  According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, when the switch 46 is pressed and switched to the handling mode, the feed chain 12B is driven at a constant speed. Can do.

It is a left view of a combine. It is a top view of a combine. It is a principal part left view of a threshing apparatus. It is principal part sectional drawing of a threshing apparatus. It is a principal part front view of a combine. It is a principal part front view of a combine. It is attachment explanatory drawing of the hydraulic type continuously variable transmission for feed chains. (A) of the hydraulic continuously variable transmission for feed chains is an enlarged sectional view, and (b) is an enlarged side view. It is a principal part transmission mechanism figure of a combine. It is a connection diagram of a control device. It is explanatory drawing of the 1st drive method of a feed chain. It is explanatory drawing of the 2nd drive method of a feed chain. It is explanatory drawing of the 1st stop method of a feed chain. It is explanatory drawing of the 2nd stop method of a feed chain. It is a principal part left view of a conveying apparatus. It is a principal part top view of a conveying apparatus. It is a left view of the handling lever at the time of normal cutting and threshing work. It is a left view of the handle lever at the time of a handle operation. It is a top view of a handle lever. It is attachment explanatory drawing of the hydraulic continuously variable transmission for other feed chains. It is the principal part left view which rotated the other handle lever at the time of the handling operation from the normal cutting and threshing operation. It is a top view of another handle lever. It is another handling lever assembly perspective view.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In order to facilitate understanding, as viewed from the pilot, the front side is the front side, the rear side is the rear side, the right hand side is the right side, and the left hand side is the left side. The configuration is not limited.

  As shown in FIGS. 1 and 2, the combine is provided with a traveling device 2 including a pair of left and right crawlers for traveling on the soil surface below the machine frame 1, and threshing / sorting on the upper left side of the machine frame 1. A threshing device 3 is provided, and a reaping device 4 is provided in front of the threshing device 3 to harvest cereal grains in the field. The grain threshed and selected by the threshing device 3 is stored in a Glen tank 5 provided on the right side of the threshing device 3, and the stored grain is discharged to the outside by the discharge cylinder 7. In addition, on the upper right side of the fuselage frame 1, there is provided a cockpit 6 on which a driver is boarded, and an engine room 8 on which an engine 62 is mounted is provided below the cockpit 6.

<Mowing device>
The cutting device 4 is formed by a post-cutting frame 28, a cutting transmission case 29 that is laterally provided at the front end of the post-cutting frame 28, and a connecting frame 29A that is erected in the vertical direction from the cutting transmission case 29. It is attached to the cutting frame 30 which becomes the main frame. The base part of the post-cutting frame 28 is attached to a portion that is biased to the right side of the horizontal transmission cylinder 36 that is pivotally supported on the upper part of a pair of left and right suspension stands 35, 35 erected on the body frame 1. .

  The reaping device 4 includes a weed culm 31 for weeding a planted cereal stalk provided at the lower part on the front side, a pulling device 32 for causing a lying planted cereal stalk provided at the rear of the weed culm 31, and a pulling device The cutting blade device 33 that cuts the root of the planted culm provided at the lower part of the rear 32, and the harvesting cereal provided at the rear of the pulling device 32 and the cutting blade device 33 on one side of the threshing device 3 And a conveying device 34 that conveys toward the provided threshing portion conveying device 12. The conveying device 34 includes a stock source conveying device 34 </ b> A that conveys the stock source side of the harvested cereal rice bran, and a tip conveying device 34 </ b> B that conveys the tip side, and from the conveying device 34 to the threshing portion conveying device 12. In order to prevent the cereals from falling when taking over, a support 37 is provided on the right side of the front end of the threshing section transport device 12 from the rear end of the transport device 34 to the front end of the handling chamber 50. It has been.

  As shown in FIG. 15, a bracket 38C for attaching the front auxiliary pinch and a bracket 38D for attaching the grain sensor 34C for detecting the deformation amount of the front auxiliary pinch are provided at the rear end of the frame 4A of the reaping device 4. Is provided. The front end of the frame 4A is attached to a connecting frame 29A that is erected on the left side of the cutting transmission case 29 of the cutting frame 30, and tilts upward from the front toward the rear, and the rear end is the feed chain. It faces the front upper side of 12B.

  The front auxiliary clamp has an upper auxiliary clamp made of a spring plate or the like and a lower auxiliary clamp. The front end portion of the upper auxiliary clamp is attached to a bracket 38C attached to the end portion of the frame 4A by a fastening member such as a bolt, and the rear end portion extends to the start end portion of the feed chain 12B. . Further, the front end portion of the lower auxiliary clamp is attached to a bracket 38C attached to the end portion of the frame 4A so as to cover the upper auxiliary clamp from the lower side by a fastening member such as a bolt. The part extends to the front side of the clamping rod 12C.

  In addition, the width in the left-right direction of the upper auxiliary clamp and the lower auxiliary clamp is formed narrower than the width in the horizontal direction of the feed chain 12B, and the lower auxiliary clamp is formed in the feed chain 12B. It is placed between the left and right outer plates.

  The cereal sensor 34C is attached to a bracket 38D attached to the end of the frame 4A by a fastening member such as a bolt. In addition, as shown in FIG. 15, it is suitable for the grain straw sensor 34C to arrange two grain straw sensors 34C and 34C in the front-back direction on the bracket 38D.

  The grain hull sensor 34C arranged on the front side detects the presence or absence of a grain hull taken over from the transport device 34 to the feed chain 12B. That is, when there is a cereal rice cake handed over from the conveying device 34 to the feed chain 12B, the rear end portion of the upper auxiliary nip moves upward, and the rear end portion of the upper auxiliary nip is arranged on the front side. The pressed cereal sensor 34C is pressed. On the other hand, when there is no grain candy, the rear end portion of the upper auxiliary nip retains the state extended to the start end portion of the feed chain 12B.

  The grain stalk sensor 34C disposed on the rear side detects clogging of the grain culm taken over from the conveying device 34 to the feed chain 12B. That is, when the cereal rice cake handed over from the conveying device 34 to the feed chain 12B is clogged to the front side of the feed chain 12B, the rear end portion of the lower auxiliary jaw moves upward, and the lower auxiliary jaw The middle part of the candy presses the grain candy sensor 34C arranged on the rear side. On the other hand, when the cereal is not clogged, the rear end portion of the lower auxiliary pinch maintains the state of being placed on the upper side of the feed chain 12B. In particular, it is preferable to switch the conveyance speed of the feed chain 12B in accordance with the output value of the grain culm sensor 34C disposed on the rear side.

(First restriction means)
As shown in FIGS. 15 and 16, at the end of the frame 4A, there is a rear auxiliary squeeze 43 for clamping the cereals conveyed from the conveying device 34 to the feed chain 12B with the feed chain 12B, and a handling cylinder described later. In place of the mode switch 6B disposed on the cover 50D, a first hand-handling restricting member 40 for operating a mode switch ("switch" in claims) 46 for switching between normal mowing and threshing work and hand-handling work is provided. 1 restriction means 100 is provided.

  A front end portion of the rear auxiliary clamp 43 made of a spring plate or the like is attached to a shaft 44A that extends in the left-right direction and is attached to a bracket (“support portion”) 44 attached to the terminal end of the frame 4A. The rear end portion is supported so as to be rotatable, and extends rearward along the lower side of the clip 12C and extends further to the rear side than the front end portion of the clip 12C. The lateral width of the rear auxiliary clamp 43 is formed to be narrower than the lateral width of the feed chain 12B. The rear auxiliary clamp 43 is formed by the left and right outer plates of the feed chain 12B. It is listed in between. Further, the shaft 44A is disposed in parallel with the drive shaft 68D for driving the feed chain 12B and the support shaft of the tensioning wheel 17B.

  The rear auxiliary clamp 43 secures a wide maintenance / inspection work space after opening the barrel cover 50D and moving the clamp 12C upward during maintenance / inspection work of the feed chain 12B and the like. Therefore, it can be rotated counterclockwise about the shaft 44A in the left side view of the aircraft.

  The hand handling restricting member 40 includes a front plate 41 made of a channel material having a substantially U-shaped cross section, and a front end portion on a shaft 41B that is attached to the rear end portion of the front plate 41 and extends in the left-right direction. Is configured to have a rear plate (a “plate portion” in the claims) 42 having a substantially I-shaped cross section.

  A front end portion of the front plate 41 is rotatably supported by a shaft 44A that supports the front end portion of the rear auxiliary clamp 43, and an outer surface of the left side plate of the front end portion is below the front side of the shaft 44A of the bracket 44. A substantially semicircular arc-shaped actuating portion 41 </ b> A for pressing the mode switch 46 attached to is attached. Further, between both side plates at the rear end portion of the front plate 41, a shaft 41B extending in the left-right direction for rotatably supporting the front end portion of the rear plate 42 is mounted. In this embodiment, the front plate 41 and the rear auxiliary clamp 43 are supported on the same shaft 44A, but can be supported on different shafts.

  As shown in FIGS. 17 to 19, the operating portion 41 </ b> A is formed in a semicircular arc shape toward the front side (in the state shown in FIG. 17, an arc shape extending from the 6 o'clock position to the 12 o'clock position). The center of is located offset from the axis of the shaft 44A (in the state shown in FIG. 17, biased forward and upward relative to the shaft 44A). In addition, as shown in FIG. 17, the operation part 41A is configured so that the lower side part of the operation part 41A and the terminal part 46A of the mode switch 46 do not come into contact with each other when the handling control member 40 is located in the restricted state. When the hand-handling restricting member 40 is located in a non-restricted state as shown in FIG. 18, with a certain distance between the lower portion of the operating portion 41A and the terminal portion 46A of the mode switch 46. Are arranged so that the upper part of the operating part 41A and the terminal part 46A of the mode switch 46 are in contact with each other, and the upper part of the operating part 41A presses the terminal part 46A of the mode switch 46.

  In addition, as the handling restriction member 40 rotates counterclockwise, the distance between the upper portion of the operating portion 41A and the terminal portion 46A of the mode switch 46 is narrowed, and the upper portion of the operating portion 41A is connected to the mode switch 46. The terminal portion 46A is pressed more strongly.

  The shape of the operating portion 41A is not limited to the above shape, and is formed in a 1/4 arc shape (arc shape from 9 o'clock to 12 o'clock) toward the front side, and the center of the 1/4 arc shape is formed. A shape that is biased to the front side of the axis of the shaft 44A, a 1/4 arc shape (arc shape from 9 o'clock to 12 o'clock) toward the front side, and a linear portion that is inclined downwardly from the lower end of the arc, For example, the center of the four arcs may be shifted to the front side of the axis of the shaft 44A.

  As a result, when the front plate 41 is rotated counterclockwise around the axis 44A to switch from the normal mowing and threshing operation to the handling operation, the traveling device 2 is driven. Even when vibration or the like is propagated to the front plate 41, the terminal portion 46A of the mode switch 46 and the operating portion 41A of the front plate 41 are moved as the front plate 41 is rotated counterclockwise about the shaft 44A. And the terminal portion 46A of the mode switch 46 can be reliably pressed to maintain the ON state.

  On the other hand, when the front plate 41 is rotated clockwise about the axis 44A in the left side view of the machine body to switch from the handling operation to the normal mowing and threshing operation, the detection state of the mode switch 46 is changed. It can be gradually changed from the ON state to the OFF state.

  When switching from normal mowing and threshing work to handling work, the operator is warned by a monitor or the like arranged in front of the cockpit 6 in order to maintain the safety of the auxiliary worker. .

  As the mode switch 46, it is also possible to use a detection sensor that detects switching from a normal mowing and threshing operation to a handling operation mode or the like by contact between the terminal portion 46A of the mode switch 46 and the operating portion 41A of the front plate 41. it can. However, in order to prevent the detection state (ON / OFF state) from becoming unstable due to vibration generated by the traveling of the traveling device 2 or the like, when the terminal portion 46A of the mode switch 46 is displaced more than a certain amount, the certain state is exceeded. It is preferable to use a displacement sensor or a pressure sensitive sensor that detects switching from a normal mowing and threshing operation to a handling operation mode or the like.

  When a displacement sensor is used as the mode switch 46, it is possible to output an output value corresponding to the amount of displacement that the terminal portion 46A is displaced by being pressed by the operating portion 41A.

  As described above, when a displacement sensor is used as the mode switch 46, the mode switch 46 corresponding to the rotational position of the front plate 41 that switches the control device 85 from the normal mowing and threshing operation to the handling operation in advance. Of the terminal portion 46A of the mode switch 46 corresponding to the rotational position of the front plate 41 for switching from the handling operation to the normal cutting and threshing operation (threshold value). By setting B), even if the vibration due to traveling of the traveling device 2 changes significantly due to the soil surface, the change of work can be easily changed by changing the thresholds A and B, and stable The work can be switched.

  The front end portion of the rear plate 42 is rotatably supported by a shaft 41B attached to the rear end portion of the front plate 41, and the front side portion 42A inserted inside the front plate 41 has a cross section of substantially I. The rear side portion 42 </ b> B that extends backward from the rear end of the front plate 41 also has a substantially I-shaped cross section.

  At the time of normal mowing and threshing work, the hand handling restricting member 40 is rotated clockwise about the shaft 44A to be formed between the rear end portion of the frame 4A and the front end portion of the holding rod 12A. In a restricted state that covers the space above the flange 43, during the handling operation, the handling restriction member 40 is rotated counterclockwise about the shaft 44A to sandwich the rear end portion of the frame 4A. It is set as the non-restriction state which open | releases the space above the rear side auxiliary clamp 43 formed between the front-end parts of the collar 12C.

  That is, the hand handling restricting member 40 is rotated downward, and the interval between the rear part of the hand handling restricting member 40 and the front part of the holding bowl 12A is reduced, so that the hand handled grain meal to the feed chain 12B is reduced. The regulation state in which the supply of the feed is restricted, the handling restriction member 40 rotates upward, and the interval between the rear part of the handling restriction member 40 and the front part of the clamping rod 12A is increased, and the feed chain 12B It is the structure which switches to the non-regulated state in which the supply of the hand-held cereal meal to is permitted.

  In the restricted state, in the plan view, the front plate 41 extends rearward from the shaft 44A to cover the top end of the feed chain 12B, and the rear plate 42 extends rearward from the front plate 41. It is provided and reaches the rear of the front end portion of the scissors 12C and is arranged on the left side of the feed chain 12B. Further, when viewed from the side, the front plate 41 is gently inclined rearward and upward from the shaft 44A, and the rear plate 42 is gently inclined rearward and rearward from the front plate 41. And reaches the rear of the front end portion of the clip 12C.

  The front plate 41 maintains the regulated posture by the lower stopper 41C provided at the intermediate portion thereof contacting the upper edge of the support member 43A provided at the base of the rear auxiliary clamp 43, and the rear plate 41 The side plate 42 maintains the regulated posture by bringing the front end portion of the rear plate 42 into contact with the rear portion of the front plate 41. In order to enhance the safety of the auxiliary worker, the front end portion of the front plate 41 is preferably disposed in front of the front end portion of the feed chain 12B, and the upper side of the transport device 34 that prevents scattering of dust and the like. It is preferable to dispose the rear dustproof cover 49A disposed on the rear side of the rear end.

  In order to prevent overhanging from the machine body, it is preferable to arrange the right side surface of the front plate 41 on the inner side of the left side surface of the rear dust-proof cover 49B arranged on the upper side of the transport device 34. As shown in FIG. 17, the rear plate 42 can rotate around the shaft 41B at the rear end of the front plate 41, so that the handling plate 40 can be removed without removing the rear dustproof cover 49B. Can be rotated in the vertical direction.

  In the non-restricted state, the front plate 41 extends from the shaft 44 </ b> A to the front and inclines in the side view, and the rear plate 42 is substantially horizontal from the shaft 41 </ b> B of the front plate 41 to the front. It is extended to. The front plate 41 maintains a non-restricted posture by contacting the upper surface of the front plate 41 with an upper stopper 44 </ b> C erected on the bracket 44, and the rear plate 42 is a rear side portion 42 </ b> B of the rear plate 42. The non-regulated posture is maintained by contacting the upper surface of the front plate 41 with the rear portion of the front plate 41. In addition, in order to prevent the fluctuation | variation of the regulation state attitude | position of the front side plate 41 and a non-regulation state attitude | position by propagation of a vibration etc. and to perform rotation of the front side plate 41 easily, the rear part of the conveying apparatus 34 and the left surface of the front side plate 41 are used. It is preferable that the front plate 41 is urged to the restricted state posture and the non-restricted state posture by connecting with an urging means such as a spring-like spring across the shaft 44A.

(Second regulating means)
Next, the 2nd control means 110 is demonstrated. In addition, the same code | symbol is attached | subjected to the same member as the 1st control means 100, and the overlapping description is abbreviate | omitted.

  As shown in FIGS. 21 to 23, at the terminal end of the frame 4A, a rear auxiliary pinch 143 that holds the wheat straw transferred from the transfer device 34 to the feed chain 12B with the feed chain 12B, and a barrel cover 50D In place of the mode switch 6 </ b> B arranged in FIG. 2, a second regulating means 110 including a handling control member 140 that operates a mode switch 146 that switches between a normal cutting and threshing operation and a handling operation is provided.

  A first bracket 144 is attached to the end portion of the frame 4A. A switch support portion 144A for attaching the mode switch 146 is formed on the lower side portion of the first bracket 144, and the rear side auxiliary clamp 143 and the hand handling restricting member 140 are formed on the upper side portion of the first bracket 144. A rotation support portion 144B is formed to support a shaft 147 extending in the left-right direction that rotatably supports the mode switch 146. On the left side of the first bracket 144, which is not yet cut, there is a collision between the mode switch 146 and the outside. 144C is a biasing means support portion for attaching a front portion of the biasing means 152 such as a spring-like spring that prevents fluctuations in the restricted state or non-restricted state of the handling restriction member 140 by vibration generated during traveling. Is formed. In order to easily perform maintenance / inspection work such as replacement of the rear side auxiliary clamp 143 and the mode switch 146, the first bracket 144 has a weld nut 4C of the plate 4B fixed to the front end of the frame 4A. Are detachably attached by bolts 4D.

  The rear auxiliary clamp 143 made of a spring plate or the like is rotatably attached to a shaft 147 supported by the rotation support portion 144B of the first bracket 144 via the second bracket 145.

  The second bracket 145 includes a bottom plate 145A and side plates 145B and 145B extending upward on the left and right sides of the bottom plate 145A. Two weld bolts 145C arranged in parallel in the front-rear direction are fixed to the center in the left-right direction of the bottom plate 145A. Further, in order to fit the rotation support portion 144B of the first bracket 144 between the side plates 145B and 145B, the distance between the side plates 145B and 145B in the left-right direction is the width in the left-right direction of the rotation support portion 144B of the first bracket 144. An arcuate opening 145D that passes through the shaft 147 is formed in the front portion of the side plates 145B and 145B, and the upper end portions of the side plates 145B and 145B are formed to be rearwardly lowered. In the restricted state, the upper ends of the left and right side plates 145B and 145B are in contact with the inner surface of the upper plate 148A of the third bracket 148.

  Two openings 143 </ b> A arranged in the front-rear direction are opened in the center in the left-right direction of the front portion of the rear auxiliary clamp 143. In order to easily perform maintenance and inspection work such as replacement of the rear auxiliary clamp 143, the rear auxiliary clamp 143 has an opening 143 </ b> A of the rear auxiliary clamp 143 that is welded to the second bracket 145. After being inserted into 145C, it is detachably attached by a nut 145E.

  As shown in FIG. 21, the rear portion of the rear auxiliary clamp 143 extends rearward along the feed chain 12B and extends rearward from the rear end portion of the clamp 12C. As shown in FIG. 22, the width of the rear auxiliary clamp 143 in the left-right direction is narrower than the width of the feed chain 12B in the horizontal direction. It is placed between the left and right outer plates of 12B. The shaft 147 is disposed in parallel with the drive shaft 68D for driving the feed chain 12B and the support shaft of the extension wheel 17B, and after being inserted into the opening 148D of the third bracket 148, the shaft 147 is connected to the shaft 147 from the other side. A washer 147A is inserted, and is detachably attached to the rotation support portion 144B of the first bracket 144 by a stop pin 147B.

  The rear auxiliary clamp 143 secures a wide maintenance / inspection work space after moving the clamp 12C upward by half-opening the barrel cover 50D during maintenance / inspection work of the feed chain 12B and the like. Therefore, it can be rotated counterclockwise about the shaft 147 via the second bracket 145 in the left side view of the airframe. Further, when a large amount of cereal is supplied to the feed chain 12B, the upper surfaces of the side plates 145B and 145B of the second bracket 145 and the inner surface of the upper plate 148A of the third bracket 148 are in contact with each other. The side auxiliary nip 143 and the hand handling restricting member 140 move upward while maintaining a predetermined distance.

  A handling restriction member 140 made of a round bar or the like is rotatably mounted on a shaft 147 supported by the rotation support portion 144B of the first bracket 144 via the third bracket 148.

  The third bracket 148 includes an upper plate 148A and side plates 148B and 148B extending downward on the left and right sides of the upper plate 148A. Since the third bracket 148 covers the second bracket 145 from above and is attached to the shaft 147 supported by the rotation support portion 144B of the first bracket 144, the lateral distance between the side plates 148B and 148B of the third bracket 148 is The second bracket 145 is formed wider than the interval between the side plates 145B and 145B, and an arcuate opening 148D through which the shaft 147 is inserted is opened at the front of the side plates 148B and 148B.

  The front portion of the hand handling restricting member 140 is fixed to the rear inner surface of the upper plate 148A of the third bracket 148 and the inner surface of the left side plate 148B. In addition, an operating portion 150 detected by the mode switch 146 is provided at an outer portion near the opening 148D of the left side plate 148B in a state in which the handling control member 140 is rotated from the restricted state to the non-restricted state. An urging means support 151 for attaching a rear portion of the urging means 152 that is formed and suppresses fluctuation of the restricted state or the non-restricted state of the handling control member 140 due to vibration generated during traveling is formed at the rear of the operating part 150. Is formed.

  As shown in FIG. 21, the handling restriction member 140 is formed of a front restriction plate 140A extending toward the rear side and a rear restriction plate 140B inclined upward from the rear end portion of the front restriction plate 140A. In order to facilitate the turning operation of the handling restriction member 140 by an auxiliary worker, a grip 140C made of resin or the like that clearly indicates the operation direction is attached to the rear part of the rear restriction plate 140B. Further, in order to prevent contact between the auxiliary worker and the feed chain 12B during the turning operation of the handling restriction member 140 by the auxiliary worker, as shown in FIG. 140A extends toward the rear side, and the rear regulating plate 140B extends rearward from the rear end portion of the front regulating plate 140A and then rearward so that the rear portion is substantially parallel to the feed chain 12B. It extends toward the surface. In the second restricting means, the grip 140C is attached to the rear end portion of the rear restricting plate 140B, but it can be attached to an intermediate portion in the front-rear direction of the rear restricting plate 140B. In addition, the arc-shaped arrow in FIG. 22 indicates the rotation of the handling restriction member 140 from the restricted state to the non-restricted state and from the non-restricted state to the restricted state.

  Further, in order to prevent the auxiliary harvester from staying on the upper surface of the handling restriction member 140 in the non-restricted state, the front portion of the front restriction plate 140A in the non-restricted state in a side view. A notch part 140D is formed on the upper surface of the rear restriction plate 140B in the non-restricted state at a rearward-reclined angle substantially the same as the rear-reclined inclination angle of the rear restriction plate 140B. It is preferable not to provide a protrusion on the upper surface of 140B.

  As shown in FIG. 23, the operating portion 150 includes a front operating portion 150A that extends rearward from a portion facing the center portion in the front-rear direction of the opening 148D of the left side plate 148B, and a rear operating portion 150A. It is formed from the rear side operation part 150B which inclines backward from the end part.

  When the hand-handling restricting member 140 is in the restricting state, the front operating portion 150A and the rear operating portion 150B are disposed at a place where the mode switch 146 is not detected. In addition, when the handling restriction member 140 starts to rotate counterclockwise from the restricted state to the non-restricted state, first, the front side operation unit 150A is detected by the mode switch 146, whereby the control device 85 is Then, it is determined that the mode has been changed from the normal work mode to the handling work mode. Next, when the handling control member 140 is in the non-regulated state, the rear side operation unit 150B is detected by the mode switch 146, whereby the control device 85 causes the handling operation mode to continue. Judge that there is. In addition, it can replace with the action | operation part 150 of the 2nd control means 110, and can also use the action | operation part 41A of the 1st control means 100. FIG.

  The urging means supporting portion 151 includes a left and right extending portion 151A that extends from the left side plate 148B toward the left side that is the non-cutting side and is located below the rear end portion of the rear operating portion 150B, and a left and right extending portion. An opening for engaging the rear part of the urging means 152 at the center in the front-rear direction and the up-down direction of the front-rear extension part 151B is formed from a front-rear extension part 151B extending forward from the left end of 151A. The portion 151C is opened.

  In order to prevent a decrease in the durability of the urging means 152 by the action of an unnecessary torsional force and the like, and to make the urging means of the urging means 152 act on the handling control member 140 efficiently, the front / rear extension portion 151B is 22, the first bracket 144 is disposed on the rearward extension line of the biasing means support portion 144C.

  In order to stably maintain the restricted state and non-restricted state of the handling restricting member 140 from the urging means 152, as shown in FIG. 23, the urging means support portion that engages the front portion of the urging means 152. The opening 144D opened in the lower portion of 144C is located on the lower side in front of the shaft 147 inserted through the rotation support portion 144B, and the opening 151C of the front-rear extension portion 151B is located behind the shaft 147. Located on the lower side. Thereby, when the handling control member 140 rotates counterclockwise in the left side view from the restricted state to the non-restricted state, the urging means 152 moves upward from below the shaft 147 in the side view, On the other hand, when rotating from the non-regulated state to the restricted state in the clockwise direction in the left side view, the urging means 152 moves from the upper side of the shaft 147 to the lower side so as to exceed the so-called fulcrum.

  Further, in order to prevent the handling control member 140 from rotating from the non-restricted state to the restricted state due to vibration or the like, the biasing means 152 in the non-restricted state is more than the tension generated by the biasing means 152 in the restricted state. It is preferable to increase the generated tension.

  In order to prevent the urging means 152 from being damaged due to contact with the outside, the urging means supporting portion 144C is provided on the inner side of the first bracket 144 on the opposite side of the uncut rice culm side to support the urging means. The portion 151 can also be provided inside the body of the handling control member 140.

  A mode switch 146 is attached to the switch support 144 </ b> A of the first bracket 144. As the mode switch 146, a contact sensor, a displacement sensor, or a pressure sensor can be used.

  The mode switch 146 is sandwiched between the switch support portion 144A and the plate 149. That is, the opening 144a opened on both sides in the left-right direction of the switch support 144A, the opening 146A formed on both sides in the left-right direction of the mode switch 146, and the female formed on both sides in the left-right direction of the plate 149. A mounting screw 149B is inserted into the screw 149A from above the switch support portion 144A, and the mode switch 146 is sandwiched and attached between the switch support portion 144A and the plate 149. In order to prevent the plate 149 from falling off due to the loosening of the mounting screw 149B and the mode switch 146 from falling off, the rear end of the frame 4A extends below the plate 149 so that the lower surface of the plate 149 extends from the frame 4A. It is pushed up on the upper surface of the rear end.

  The mode switch 146 is shown in FIGS. 21 and 22 in order to prevent the trouble of conveying the cereals conveyed from the conveying device 34 to the feed chain 12B and to prevent the mode switch 146 from being damaged due to contact with the cereals. As shown, it is located above the conveying path of the cereals from the conveying device 34 to the feed chain 12B, and is attached in front of the sandwiching basket 12A.

  At the time of normal mowing and threshing, the handling restriction member 140 is rotated clockwise about the shaft 147 to be formed between the rear end portion of the frame 4A and the front end portion of the holding rod 12A. In the handling state, the handling restriction member 140 is rotated counterclockwise about the shaft 147 to sandwich the rear end portion of the frame 4A. It is set as the non-restriction state which open | releases the space above the rear side auxiliary clamp 143 formed between the front-end parts of the collar 12C.

  That is, the hand handling restricting member 140 rotates downward, and the interval between the rear part of the hand handling restricting member 140 and the front part of the holding punch 12A is reduced, so that the hand handling cereal to the feed chain 12B is reduced. The regulation state in which the supply of the feed is restricted, the handling control member 140 rotates upward, and the interval between the rear part of the handling control member 140 and the front part of the clamping rod 12A is increased, and the feed chain 12B It is the structure which switches to the non-regulated state in which the supply of the hand-held cereal meal to is permitted.

  In order to maintain a good posture of the cereal that is transferred from the transport device 34 to the threshing section transport device 12, an auxiliary transport device is placed on the right side of the upper surface or the lower surface of the support 37 facing the tip transport device 34B. It can also be arranged.

The auxiliary conveying device is provided with a belt with a lug and a bumped belt that move from the front side to the rear side in order to convey the ear of the cereal that has been taken over from the tip conveying device 34B to the feed chain 12B. In addition, the rotation of a counter shaft 71, which will be described later, is transmitted to the auxiliary transport device via the output shaft 10B of the feed chain hydraulic continuously variable transmission 10 so that the moving speed of a belt with a lug or the like can be controlled. It is preferable to set the same speed as that of the moving speed.
In place of the feed chain hydraulic continuously variable transmission 10, a hydraulic mechanical continuously variable transmission configured by combining a hydrostatic continuously variable transmission and a planetary gear may be used.

  As shown in FIGS. 3 to 5, the left suspension base 35 is attached to the upper side of a base 35 </ b> A erected on the body frame 1. A feed chain rotation shaft 35 </ b> B extending in the vertical direction is provided at the front portion on the left side of the suspension base 35 so as to rotatably support the base portion of the lateral transmission frame 35 </ b> C that pivotally supports the left side portion of the lateral transmission cylinder 36. Yes. Further, the horizontal transmission frame 36 is rotated around the feed chain rotation shaft 35B to facilitate maintenance / inspection work of the weed pod 31 and the pulling device 32 of the cutting device 4, etc. 35C is formed in the circular arc shape which has a convex part in the downward direction from the base part to the front-end | tip part in front view. As will be described later, the threshing section transport device 12 for transporting the cereals also rotates about the feed chain rotation shaft 35B.

  The right suspension base 35 is attached to the upper side of a base 35 </ b> A erected on the body frame 1. A support member 35 </ b> D that pivotally supports the right side portion of the lateral transmission cylinder 36 is attached to the upper end portion of the suspension base 35. The support member 35D includes a front support member and a rear support member that are divided into substantially semicircular arcs. When the right side portion of the lateral transmission cylinder 36 is pivotally supported, the lateral transmission cylinder 36 is centered on the feed chain rotation shaft 35B in order to engage the front and rear support members and perform maintenance of the cutting device 4 or the transmission 65. When the cutting device 4 is moved to the left side, the front and rear support members are disengaged and the lateral transmission cylinder 36 is pulled forward. In addition, in order to increase the rigidity against deformation of the left and right suspension bases 35, 35, a connecting frame 35E is installed at an intermediate portion in the vertical direction of the left and right suspension bases 35, 35.

  The rotation of the engine 62 is transmitted to the traveling hydraulic continuously variable transmission 66 via a pulley 66B supported by the input shaft of the traveling hydraulic continuously variable transmission 66, and is transmitted to the traveling hydraulic continuously variable transmission 66. The transmitted rotation is supported by the right end portion of the lateral transmission shaft 36A housed in the lateral transmission cylinder 36 via a pulley (not shown) supported by the output shaft of the traveling hydraulic continuously variable transmission 66. It is transmitted to the pulley 36A and rotates the lateral transmission cylinder 36 and the lateral transmission shaft 36A. The rotation transmitted to the lateral transmission shaft 36 </ b> A is transmitted to the pulling device 32, the cutting blade device 33, the conveying device 34, etc. of the reaping device 4 through transmission shafts (not shown) housed in the frames 27 and 28. Is done.

  The rotation of the engine 62 is transmitted to the traveling hydraulic continuously variable transmission 66 via a pulley 66B supported by the input shaft of the traveling hydraulic continuously variable transmission 66, and the traveling hydraulic continuously variable transmission for traveling. The rotation transmitted to 66 is transmitted to the left and right crawlers of the traveling device 2 via the transmission 65.

<Threshing device>
As shown in FIG. 4, the threshing device 3 includes a handling chamber 50 for threshing the cereal at the upper part of the front side, and a sorting chamber 51 for sorting the threshed grains below the handling chamber 50. Yes.

  In the handling chamber 50, a handling cylinder 55 having a plurality of teeth is supported on a handling cylinder shaft that is pivotally supported by the front and rear walls 50A and 50C. A cereal supply port 26A is opened in the lower left portion of the front wall 50A of the handling chamber 50, and a handling port 26B is opened along the handling barrel 55 in the lower portion of the left wall 50B. A discharge port 26C is opened in the lower left portion. Further, on the left side of the handling chamber 50, a threshing section transporting device 12 is provided in parallel along the handling opening 26B so as to sandwich the cereal stock and transport it backward, and the threshing transported by the threshing section transporting device 12 is The completed sorghum cereal is taken over by a sewage transporting device 58 provided at the rear of the threshing unit transporting device 12 and further transported rearward, and then cut by a pair of scouring cutters 59 and discharged to the outside. .

  A swing sorting device 52 is provided in the upper part of the sorting chamber 51, and a lower part of the sorting chamber 51 includes a first tang 53 A for blowing air to a sheave in front of the swing sorting device 52, and a swing sorting device. Kernel 53B that collects the spilled grain, the second tang 53C that blows air to the sheave at the rear of the oscillating sorter, and the cereals that are attached to the branch stem that leaks from the sway sorter A second receiving rod 53D for collecting the second thing is installed in order from the front side. The grain recovered by the first receiving box 53B is transferred to the Glen tank 5 by the first transfer spiral 53b installed in the first receiving box 53B, and the grains and the like recovered by the second receiving box 53D are two. It is transferred to the second processing chamber by a second transfer spiral 53d built in the number receiving basket 53D.

  The rear part on the right side of the handling chamber 50 communicates with the dust treatment chamber. Inside the dust treatment chamber, a dust treatment cylinder 57 having screw blades on its outer peripheral surface is pivotally supported in the front-rear direction. A second processing chamber for processing and reducing the second product is provided on the front side of the chamber. In the second processing chamber, a second processing cylinder 56 having intermittent spiral blades on the outer peripheral surface is pivotally supported. In addition, a dust exhaust fan 48 is provided on the upper rear side of the oscillating sorting shelf to suck and discharge the waste generated during threshing and sorting.

<Threshing part conveyance device>
As shown in FIGS. 3 and 6 and the like, the threshing section transporting device 12 includes a clamping rod 12A located on the upper side and a feed chain 12B located on the lower side. The clamping rod 12A is urged toward the feed chain 12B by the urging means 14 such as a spring against the handling cylinder cover 50D of the handling chamber 50. The feed chain 12B is wound around and driven by tensioning wheels 17B and 17B that are rotatably supported at the front and rear ends of the upper chain rail 18A, and a driving sprocket 17A provided between the tensioning wheels 17B and 17B. Is an endless chain. The working side feed chain 12B mounted on the upper chain rail 18A clamps the holding basket 12A and the grain base in the process of moving backward from the front side. In addition, in order to prevent the cereals to be conveyed from being wound around the end portion of the feed chain 12B, the rear tensioning wheel 17B uses an idle sprocket provided with anti-winding plates 17D on both sides. Is preferred.

  On the side surface of the barrel cover 50D, the auxiliary worker who is performing the handling operation can easily adjust the speed VF1 of the feed chain 12B during the handling operation to improve workability. A dial 6A is provided. Further, in order to efficiently adjust the speed VF of the feed chain 12B in accordance with the amount of the handle culm, the periphery of the rear side auxiliary nip 43 on which the speed control dial 6A is handled and the culm is mounted. The speed control dial 6A can also be arranged on the side panel of the cockpit 6 in order to efficiently assist an assistant worker who is not familiar with the pilot seated in the cockpit 6.

  In addition to the speed control dial 6A, or instead of the speed control dial 6A, a speed control pedal 45 for adjusting the speed VF of the feed chain 12B during the handling operation is provided on the machine body frame 1 in front of the threshing device 3. You can also

  In a side view, the sandwiching trough 12A is provided with a slope that rises rearward along the handling opening 26B from the grain supply port 26A to the discharge opening 26C of the handling chamber 50. The upper chain rail 18A on which the feed chain 12B on the working side is mounted tilts rearward and upward from the front front end of the horizontal shaft transmission cylinder 36 and then gently tilts rearward and forward of the grain supply port 26A of the handling chamber 50. After arriving, it faces and rises backward along the handling opening 26B from the grain supply port 26A of the handling chamber 50 to the discharge opening 26C, facing the holding bowl 12A. Then, after extending horizontally from the discharge port 26C, it tilts backward and reaches the rear end behind the front end of the tip conveying device 34A. In order to easily change the length in the front-rear direction of the threshing section conveying device 12 in accordance with the change in the number of cutting lines of the mowing device 4, the upper chain rail 18A preferably has a split structure that can be divided in the front-rear direction. is there.

  The lower chain rail 18B on which the non-working-side feed chain 12B is mounted is inclined upward from the front end above the counter shaft 71 that transmits the rotation of the engine 62 to the drive sprocket 17A and reaches the rear end. The rear end of the lower chain rail 18B is provided in front of the rear extending wheel 17B and below the discharge port 26C.

  A guide 18D for guiding the non-operating feed chain 12B to a drive sprocket 17A provided below the front end of the lower chain rail 18B is detachably attached to the front end of the lower chain rail 18B. . The guide 18D is provided above the counter shaft 71 and has a substantially quarter circle shape. In addition, it is preferable to provide a cover (not shown) above the guide 18D in order to prevent the counter shaft 71 and the like from being soiled by dropping of oil or the like.

On the lower side of the lower chain rail 18B, an upper chain rail 18A and a support frame 19 that supports the lower chain rail 18B are provided by a rail connecting plate 18C.
That is, the feed chain 12 </ b> B is supported by the support frame 19. In addition, the upper chain rail 18A and the connecting plate 18E connected to the lower chain rail 18B prevent the sawdust falling from the feed chain 12B being transported from the rice straw from dropping into the drive unit of the sorting chamber 51. A sawdust guide plate (not shown) is attached.

As shown in FIGS. 3 and 5, the front end of the support frame 19 is attached to a plate 19A attached to a bracket 19B with bolts or the like. The bracket 19B is a feed chain rotating shaft provided on the left suspension base 35. It is rotatably attached to the upper and lower ends of 35B.
When the feed chain 12B is rotated around the feed chain rotating shaft 35B, the feed chain rotating shaft 35B is wound around the feed chain 12B in order to reduce the intrusion of the front end portion of the feed chain 12B into the machine body. It is erected near the rear side of the front tensioning wheel 17B.

  In order to prevent the support frame 19 from interfering with the feed chain hydraulic continuously variable transmission 10 and the like, the input shaft 10A and the gear box 68 of the feed chain hydraulic continuously variable transmission 10 from the front end in a side view. After extending rearward between the output shafts 68B, the first transmission motor 10C is bent approximately 90 degrees in front of the first transmission motor 10C and extends upward. Then, after extending the front of the counter shaft 71 upward, it tilts upward from the lower side of the guide 18D along the lower side of the lower chain rail 18B, and substantially extends in the front-rear direction of the lower chain rail 18B. It reaches the center.

  As a result, when maintenance / inspection of the feed chain 12B, the feed chain hydraulic continuously variable transmission 10 and the like is performed, the support frame 19 is rotated about the feed chain rotation shaft 35B to thereby feed the feed chain 12B. This can be done easily by separating the rear part from the main body of the threshing device 3. In order to facilitate maintenance and inspection of the feed chain hydraulic continuously variable transmission 10, the feed chain rotating shaft 35 </ b> B is erected in front of the front portion of the feed chain hydraulic continuously variable transmission 10. ing.

  In a side view, the front tensioning wheel 17B is provided in the vicinity of the front of the horizontal shaft transmission cylinder 36 that transmits the rotation of the engine 62 to the cutting device 4, as shown in FIG. It is provided in the vicinity of the rear of the front end portion of the tip conveying device 34A. The drive sprocket 17A is disposed between the front and rear tensioning wheels 17B and 17B in the front-rear direction and is biased toward the front tensioning wheel 17B. The drive sprocket 17A and the feed shaft 12B The counter shaft 71 that transmits the rotation of the engine 62 is positioned substantially at the center. Further, in the vertical direction, it is located at the approximate center of the support frame 19 extending rearward for supporting the counter shaft 71 and the lower chain rail 18B. Further, a tension sprocket 17C is provided between the front tensioning wheel 17B and the drive sprocket 17A. The base is supported by a drive shaft 68D described later.

  As a result, the feed chain 12B moves upward from the drive sprocket 17A, and then moves along the tension sprocket 17C to reach the front tensioning wheel 17B. From the front tensioning wheel 17B to the upper chain rail 18A. The upper side moves toward the rear tensioning wheel 17B. Thereafter, the feed chain 12B moves from the rear tensioning wheel 17B toward the front lower chain rail 18B, and then moves from the rear end of the lower chain rail 18B to the upper side of the lower chain rail 18B with the front guide 18D. Then, it moves along the guide 18D and reaches the drive sprocket 17A.

  As shown in FIG. 6, the rotation of the engine 62 is transmitted to the feed chain hydraulic continuously variable transmission 10 through the counter shaft 71, and after being accelerated and decelerated by the key box 68, the driving of the threshing section transport device 12 is driven. It is transmitted to the output shaft 68B connected to the sprocket 17A.

  Both side portions of the counter shaft 71 are pivotally supported by a pair of support members 80 erected forward at the center of the front wall 50A of the threshing device 3 in the vertical direction. The rotation of the engine 62 is transmitted to the counter shaft 71 via a pulley 71 </ b> A supported on the right end portion of the counter shaft 71.

  The rotation transmitted to the counter shaft 71 is transmitted to the handling cylinder 55 via the pulley 71C and the belt 92 supported on the left side of the pulley 71A, and on the right side of the pulley 71E supported on the left end portion of the counter shaft 71. It is transmitted to the input shaft 10A of the feed chain hydraulic continuously variable transmission 10 via the supported pulley 71D, belt 93, and the like. The rotation transmitted to the input shaft 10A of the feed chain hydraulic continuously variable transmission 10 is transmitted to the gear box 68 via the output shaft 10B as shown in FIG. And transmitted to the output shaft 68B. The rotation transmitted to the output shaft 68B is transmitted to the drive sprocket 17A of the feed chain 12A via the coupling 68C. The drive sprocket 17A is rotatably supported on the drive shaft 68D.

  The drive shaft 68D is supported by a plate 19C attached to the right side of the support frame 19, and when the support frame 19 is rotated with respect to the feed chain rotation shaft 35B, the output shaft 68B by the coupling 68C and the drive sprocket 17A. Thus, the rotation of the engine 62 is not transmitted to the drive sprocket 17A, and the feed chain 12B, the guide 18D, etc. can be exchanged safely. Instead of the coupling 68C that connects the output shaft 68B and the drive shaft 68D, a meshing clutch and a pawl clutch can be provided at the ends of the opposed output shaft 68B and the drive shaft 68D.

  As shown in FIG. 7, the gear box 68 is attached to the right side surface of the rear plate 11 </ b> B that is erected forward at a portion biased downward in the vertical direction of the front wall 50 </ b> A of the threshing device 3. Further, in order to effectively use the space on the front side of the threshing device 3, a feed chain hydraulic continuously variable transmission 10 is attached to the left side surface of the carrier box 68. Furthermore, the feed chain hydraulic continuously variable transmission A first transmission motor 10 </ b> C that rotates the trunnion shaft 10 </ b> F of the feed chain hydraulic continuously variable transmission 10 is attached to the rear side of the motor 10.

  Further, as shown in FIG. 20, a first transmission motor 10C that rotates a trunnion shaft 10F of the feed chain hydraulic continuously variable transmission 10 on the rear side of the feed chain hydraulic continuously variable transmission 10, and a first A second speed change motor 10F that has a larger output than the speed change motor 10C and rotates the trunnion shaft 10F at a high speed can be mounted side by side.

  The gear 10c of the first transmission motor 10C and the gear 10e of the second transmission motor 10F attached to the body frame 1 are engaged with the tip of the sector gear 10G whose base end is supported by the trunnion shaft 10F. Yes. The control device 85, which will be described later, drives the first transmission motor 10C and rotates the trunnion shaft 10F in the normal mowing mode, and drives the second transmission motor 10F and rotates the trunnion shaft 10F in the handling mode. Note that the second speed change motor 10F freely rotates in the cutting mode, and the first speed change motor 10C freely rotates in the handling mode.

  The feed chain hydraulic continuously variable transmission 10 and the carrier box 68 can be attached to the body frame 1, and the first transmission motor 10 </ b> C and the second transmission motor 10 </ b> F can be attached to the carrier box 68, and the input shaft 10 </ b> A is provided. Instead of the feed chain hydraulic continuously variable transmission 10 in which the pump unit and the motor unit including the output shaft 10B are integrated, a feed chain hydraulic continuously variable transmission in which the pump unit and the motor unit are divided is provided. It can also be used.

  The first transmission motor 10 </ b> C shifts the feed chain hydraulic continuously variable transmission 10 in conjunction with the driving speed of the cutting device 4. Specifically, it is preferable to detect the rotational speed output from the traveling hydraulic continuously variable transmission 66 and transmitted to the reaping device 4, and to operate the first transmission motor 10C in accordance with the rotational speed. is there.

  The front end of the rear plate 11B and the rear end of the front plate 11A provided on the connecting frame 35E of the left and right suspension bases 35 and 35 are connected by loosely inserted pins in order to reduce vibration. . The rear portion of the rear plate 11B is connected to a bracket on the counter shaft 71 side by fastening means such as a bolt. Further, a cutting position sensor 36S that detects a vertical rotation position of the post-cutting frame 28 is provided below the horizontal transmission shaft 36A.

  On the left side of the right base 35A, as shown in FIG. 6, in order to shorten the hydraulic system path, hydraulic system paths such as the feed chain hydraulic continuously variable transmission 10 and the traveling hydraulic continuously variable transmission 66 are provided. A control valve 9A for controlling the opening and closing of the control valve 9A is provided. On the right side of the control valve 9A is an oil tank 9B for supplying oil to the feed chain hydraulic continuously variable transmission 10, the traveling hydraulic continuously variable transmission 66, and the like. Is provided.

  In order to effectively utilize the space below the front of the threshing device 3 and prevent the feed chain 12B, the belt 93 and the like from interfering with each other when the feed chain 12 rotates, the input shaft 10A of the feed chain hydraulic continuously variable transmission 10 is provided. The output shaft 10B and the output shaft 68B of the gear box 68 are provided vertically so as to be vertical.

  In order to prevent hydraulic pressure loss, the input shaft 10 of the pump portion of the feed chain hydraulic continuously variable transmission 10 is provided below the output shaft 10B to control the feed chain hydraulic continuously variable transmission 10 and control. The valve 9A and the hydraulic path are shortened.

  In order to facilitate winding of the feed chain 12B, the output shaft 68B of the gear box 68 is provided above the output shaft 10B of the feed chain hydraulic continuously variable transmission 10 to shorten the length of the feed chain 12B. ing.

<Narrow guide>
As shown in FIG. 2, a narrow guide 20 is provided on the uncutted side, which is the left side of the combine, along the side as shown in FIG. 2. The narrow guide 20 can be switched between an overhanging posture that protrudes outside the combine and a storage posture that is stored inside. It has been.

  The narrow guide 20 includes a front side portion 20A and a rear side portion 20B that are connected in an indirect state, and the front end portion of the front side portion 20A is rotatable to the front end portion of the rearmost weeding frame on the leftmost weed body 31. The rear end portion of the rear side portion 20B is supported by a support member provided on the left side portion of the body frame 1 so as to be movable in the front-rear direction. Further, the narrow guide 20 is switched between an extended posture and a storage posture by switching means (not shown) having a link structure.

  When the mode switch 6B is connected and the normal cutting mode is changed to the handling mode, the narrow guide 20 is maintained in the stowed posture in order to prevent the auxiliary operator who performs the handling operation and the narrow guide 20 from coming into contact with each other. The

<Transmission mechanism>
Next, the transmission mechanism of this embodiment will be described. As shown in FIG. 9, the rotation of the engine 62 includes a first path A transmitted to the feed chain hydraulic continuously variable transmission 10 and a second path B transmitted to the travel hydraulic continuously variable transmission 66. And is branched and transmitted to the third path C transmitted to the gear box 39 in front of the Glen tank 5.

  In the first path A transmitted to the feed chain hydraulic continuously variable transmission 10, the rotation of the engine 62 is performed by the pulley 70 </ b> A supported by the crankshaft 70, the belt 90, and the pulley 71 </ b> A supported by the countershaft 71. Is transmitted to the counter shaft 71 via The first path A is provided with a threshing clutch 90 </ b> A that connects and blocks transmission downstream of the belt 90.

  The rotation of the counter shaft 71 is transmitted to the second processing drum 56 and the dust removal processing drum 57 via the pulley 71B, the belt 91 and the like, and the handling drum 55 and the waste transporting device via the pulley 71C and the belt 92 and the like. 58 is transmitted. The rotation of the counter shaft 71 is transmitted to the input shaft 10A via the pulley 71D, the belt 93, and the pulley 10D supported by the input shaft 10A of the feed chain hydraulic continuously variable transmission 10. Further, the counter shaft 71 is rotated through the pulley 71E supported on the left side of the pulley 71D and the belt 94 through the first tang 53A, the first transfer spiral 53b, the second tang 53C, the second transfer spiral 53d, the dust discharge. It is transmitted to the fan 48, the swing sorting device 52, and the waste cutter 59.

  The rotation of the input shaft 10 </ b> A is transmitted to the gear box 68 via the output shaft 10 </ b> B, and after being increased / decreased by a plurality of gears 68 </ b> A built in the gear box 68, the rotation is performed on the output shaft 68 </ b> B supported by the gear box 68. It is transmitted.

  The gear box 68 is provided with a feed chain speed sensor 10S that measures the rotational speed of the gear 68A provided in the output shaft 10B of the feed chain hydraulic continuously variable transmission 10.

  The rotation of the output shaft 68B is transmitted to the drive shaft 68D via the coupling 68C, and is transmitted to the feed chain 12B via the drive sprocket 17A supported on the left end of the drive shaft 68D. In order to easily rotate the feed chain 12B around a feed chain rotating shaft 35B provided upright on the left suspension base 35, as shown in FIG. The center of the feed chain rotating shaft 35B is provided, and the feed chain rotating shaft 35B extends vertically in the vertical direction. The left end of the output shaft 68B is on the left side of the left end of the counter shaft 71 as shown in FIG. The drive sprocket 17A is also extended to the left of the pulley 71E.

  A main transmission lever 16 for remotely operating the traveling hydraulic continuously variable transmission 66 is provided on the left side of the cockpit 6, and a transmission 65 is provided on the rear side of the main transmission lever 16 according to the lying state of the planted cereal. A sub-transmission lever 15 is provided for switching the stepped sub-transmission device provided in the transmission mechanism. The main transmission lever 16 is provided with a speed increasing switch 16A and a speed reducing switch 16B for remotely operating the feed chain hydraulic continuously variable transmission 10. When the acceleration switch 16A is pressed and held for about 2 seconds or longer, the rotation of the output shaft 10B of the feed chain hydraulic continuously variable transmission 10 can be changed to the maximum rotation speed, and the acceleration switch 16A is pressed for about 1 second. Then, the rotation of the output shaft 10B can be increased stepwise. Similarly, when the deceleration switch 16B is pressed and held for about 2 seconds or more, the rotation of the output shaft 10B of the feed chain hydraulic continuously variable transmission 10 can be changed to the minimum rotational speed, and the deceleration switch 16B is shortened by about 1 second. When pushed, the rotation of the output shaft 10B can be reduced stepwise. The speed increasing switch 16A and the speed reducing switch 16B are collectively referred to as a speed change switch S. A main transmission lever position sensor 16S that measures the transition position of the main transmission lever 16 is provided below the main transmission lever 16, and a sub-transmission position that measures the transition position of the sub-transmission lever 15 is provided below the sub transmission lever 15. A shift lever position sensor 15S is provided.

  In the second path B transmitted to the traveling hydraulic continuously variable transmission 66, the rotation of the engine 62 is caused by the pulley 70B supported by the crankshaft 70, the belt 96, and the traveling hydraulic continuously variable transmission 66. This is input to the traveling hydraulic continuously variable transmission 66 through a pulley 66B supported by the input shaft.

  The rotation of the input shaft of the traveling hydraulic continuously variable transmission 66 is transmitted to the transmission 65 via the output shaft of the traveling hydraulic continuously variable transmission 66 and is accelerated and decelerated by a plurality of gears built in the transmission 65. After that, the vehicle is transmitted to the traveling device 2 via left and right axles 65A that are pivotally supported by the transmission 65 and drive wheels 65B that are fixed to the tip of the axle 65A. In addition, the rotation of the output shaft of the traveling hydraulic continuously variable transmission 66 is performed from the output shaft 65C that is output from a portion of the transmission path in the transmission 65 that is closer to the auxiliary transmission than the auxiliary transmission device to the tip of the output shaft 65C. Is transmitted to a pulley 36B supported on the right end of the lateral transmission shaft 36A via an output pulley 65D and a transmission belt 65E. As a configuration for urging the tension roller to the transmission belt 65E, a cutting clutch 65F is configured.

  That is, the rotation of the engine 62 transmitted to the input shaft of the traveling hydraulic continuously variable transmission 66 is increased and decelerated by the traveling hydraulic continuously variable transmission 66 and then branched, and one of them is pivotally supported by the transmission 65. Since the left and right axles 65A are transmitted to the crawler of the traveling device 2 and the other is transmitted to the pulling device 32 and the conveying device 34 of the reaping device 4 via the lateral transmission shaft 36A, the traveling speed of the traveling device 2 is increased. V, the pulling speed of the pulling device 32 of the reaping device 4 and the transport speed VH of the transport device 34 are determined with a certain relationship. For example, when the traveling speed V of the traveling apparatus 2 is increased, the pulling speed of the pulling apparatus 32 of the reaping apparatus 4 and the conveying speed VH of the conveying apparatus 34 are also increased, and the traveling speed V of the traveling apparatus 2 is decreased. In this case, the pulling speed of the pulling device 32 of the reaping device 4 and the transport speed VH of the transport device 34 are also low. The axle 65A and the lateral transmission shaft 36A are provided with a travel speed sensor 66S and a transport speed sensor 34S for measuring the rotational speed, respectively.

  Further, in the transmission path in the transmission 65, left and right side clutch gears 65H are pivotally supported so as to be engaged and disengaged on both left and right side portions of the center gear 65G provided on the lower side of the auxiliary transmission. . Claw clutch type left and right side clutches 65I are formed between the center gear 65G and the left and right side clutch gears 65H, respectively. The left and right side clutches 65I mesh with left and right axle gears attached to the bases of the left and right axles 65A.

  The left and right side clutches 65I slide the side clutch gear 65H in the left-right direction by a shifter (not shown) that is operated by a left-right tilting operation of a steering lever disposed in front of the cockpit 6, and from the center gear 65G. By separating it, the transmission is cut off.

  Further, the left and right side clutches 65I are linked to the stepping operation of the take-in pedal 22 disposed on the step in the lower front of the cockpit 6, and when the take-in pedal 22 is depressed, the left and right side clutches 65I. The center gear 65G and the side clutch gear 65H are disengaged via 65I, and the rotation of the engine 62 is not transmitted to the axle 65A. On the other hand, when the depression of the brake pedal 22 is released, the center gear 65G and the side clutch gear 65H are engaged via the left and right side clutches 65I, and the rotation of the engine 62 is transmitted to the axle 65A.

  When one side of the field is trimmed to the edge, the main transmission lever 16 is operated to the neutral position to stop, the depression pedal 22 is depressed, and the center gear 65G and the side clutch gear 65H are connected via the side clutch 65I. The engagement is released and the rotation of the axle 65A is stopped.

  When the main transmission lever 16 is operated to the forward side again with the combine stopped, the output shaft 65C is driven by the output of the traveling hydraulic continuously variable transmission 66, and the cutting device 4 is driven via the cutting clutch 65F. Is done. At this time, since the left and right side clutches 65I are disengaged, the traveling device 2 is not driven forward and maintains a stopped state. With this configuration, the planted culm that remains in the reaping device 4 in a state where it has been cut and advanced to the edge of the cocoon can be reaped by operating the drive pedal 22 and the main transmission lever 16.

Note that the mowing clutch 65F can be interlocked with the depression operation of the take-in pedal 22.
That is, when the take-in pedal 22 is depressed, the output shaft 65C of the transmission 65 and the lateral transmission shaft 36A of the reaping device 4 are connected via the reaping clutch 65F, and the reaping device 4 is driven. On the other hand, when the depression of the take-in pedal 22 is released, the connection between the output shaft 65C of the transmission 65 and the lateral transmission shaft 36A of the cutting device 4 is released via the cutting clutch 65F and the driving of the cutting device 4 is stopped. To do.

  When cutting one side of the field to the edge, the main shift lever 16 is operated to the neutral position to stop the vehicle body. When the take-in pedal 22 is depressed with the combine stopped, the reaping device 4 is driven. At this time, since the main transmission lever 16 is moved to the neutral position, the traveling device 2 is not driven forward and maintains the stopped state.

  In the third path C that is transmitted to the discharge spiral 39A of the Glen tank 5, the rotation of the engine 62 is caused by the pulley 70C supported by the crankshaft 70, the belt 97, the gear box 39, and the like below the Glen tank 5. Is transmitted to a discharge spiral 39A provided in The rotation of the discharge spiral 39 </ b> A is transmitted to an auger spiral 39 </ b> B housed in a discharge cylinder 7 provided behind the Glen tank 5. The third path C is provided with a discharge clutch 97A that connects and disconnects transmission downstream of the belt 97.

<Driving and stopping the feed chain>
Next, a method for driving / stopping the feed chain 12B of this embodiment will be described. On the input side of the control device 85 provided in the cockpit 6, as shown in FIG. 10, a travel speed sensor 66 </ b> S for detecting the speed V of the travel device 2 and a speed VH of the transport device 34 of the reaping device 4 are provided. A transport speed sensor 34S for detecting, a feed chain speed sensor 10S for detecting the speed VF of the feed chain 12B of the threshing section transport device 12, a sub shift lever position sensor 15S for detecting the lever position of the sub shift lever 15, Acceleration / deceleration switches 16A and 16B for increasing / decreasing the speed VF of the feed chain 12B provided on the main transmission lever 16 and speed control for increasing / decreasing the speed VF of the feed chain 12B provided on the side surface of the barrel cover 50D. Dial 6A, mode switch 6B for switching to the handling mode, and feed chain 12B from the rear side toward the front side A reverse switch 6C for rotating, a culm sensor 34C for detecting the presence or absence of the culm conveyed on the feed chain 12B, and a stop switch for urgently stopping the drive of the feed chain 12B provided on the side surface of the barrel cover 50D 6D is connected via a predetermined input interface circuit. On the other hand, on the output side, a first transmission motor 10C that drives the trunnion shaft 10F of the feed chain hydraulic continuously variable transmission 10 in the normal cutting mode, and a feed chain hydraulic continuously variable transmission in the handling mode. A second transmission motor 10E that drives the 10 trunnion shafts 10F is connected via a predetermined output interface circuit.

  The mode switch 6B is not limited to a switch that is manually operated by an operator. That is, in order to prevent disturbance of the posture of the cereal that is handed over from the terminal end of the conveying device 34 of the cutting device 4 to the starting end of the feed chain 12B, the terminal end of the conveying device 34 has a hand that rotates in the vertical direction. A rear auxiliary clamp 43 is provided below the handling restriction member 40 and the handling restriction member 40. At the time of switching to the handling mode, the handling handle restricting member 40 is rotated upwardly about the axis 44A in order to place the handling grain cereal on the rear side auxiliary jaw 43 and the feed chain 12B. Then, the state is switched from the restricted state to the non-restricted state. It is also possible to provide a mode switch 46 that is turned ON / OFF in conjunction with the operation of rotating the hand handling restriction member 40 and use the mode switch 46 as the mode switch 6B.

(First feed chain drive method)
FIG. 11 illustrates a first driving method of the speed VF of the feed chain 12B. The horizontal axis indicates the traveling speed V of the traveling device 2 detected by the traveling speed sensor 66S, and V1 and V2 are first and second set values of the traveling speed V, respectively. The left vertical axis indicates the speed VF of the feed chain 12B detected by the feed chain speed sensor 10S, VF1 and VF2 are the first and second set values of the speed VF of the feed chain 12B, and the right vertical axis indicates the conveyance speed. The speed VH of the transport device 34 detected by the sensor 34S is shown, VH1 and VH2 are first and second set values of the transport speed VH, and VH1 and 2 are the first and second set values of the travel speed V of the travel device 2. It corresponds to the speed of V1,2.

  The solid line indicates the speed VF of the feed chain 12B, and the broken line indicates the speed VH of the transport device 34.

  First, the control device 85 determines whether or not there is an input from the mode switch 6B. If it is determined that there is no input from the mode switch 6B, the control device 85 determines the speed VH (conveyance speed sensor 34S) of the transport device 34. It is determined whether or not the input value from (1) is lower than the first set value VH1.

  When it is determined that the speed VH of the transport device 34 is lower than the first set value VH1, the speed VF of the feed chain 12B is controlled to the speed calculated by the following equation 1 as shown in the first state. Note that the transport speed VH of the transport device 34 with respect to the travel speed V of the travel device 2 varies depending on the gear position set by the auxiliary transmission lever 15.

Formula 1 VF = K × V
However, K = VH1 / V1
On the other hand, when it is determined that the speed VH of the conveying device 34 is equal to or higher than the first set value VF1, the speed VF of the feed chain 12B is calculated by the following equation 2 as shown in the second state. To control.

Formula 2 VF = VF1 + 1.5 to 2.5 × K × (V−V1)
However, K = (VH2-VH1) / (V2-V1)
Next, the control device 85 determines whether or not the speed VF of the feed chain 12B (input value of the feed chain speed sensor 10S) is lower than the second set value VH2 of the transport device 34.

  When it is determined that the speed VF of the feed chain 12B is lower than the second set value VH2 of the transport device 34, the speed VF of the feed chain 12B is set to the speed calculated by Expression 2 as shown in the second state. Control.

  On the other hand, when it is determined that the speed VF of the feed chain 12B is equal to or higher than the second set value VH2 of the transport device 34, the speed VF of the feed chain 12B is set to the second set value VF2 as shown in the third state. To maintain.

  When the traveling speed V of the traveling device 2 detected by the traveling speed sensor 66S exceeds the maximum speed V2 over a predetermined time, a warning is given to the driver by a monitor or the like disposed in front of the cockpit 6. It is preferable.

(Second feed chain drive method)
FIG. 12 illustrates a second driving method of the speed VF of the feed chain 12B. The solid line indicates the speed VF of the feed chain 12B, the broken line indicates the speed VH of the transport device 34, the same members as those in the first driving method are denoted by the same reference numerals, and duplicate descriptions are omitted.

  First, the control device 85 determines whether or not there is an input from the mode switch 6B. If it is determined that there is no input from the mode switch 6B, the control device 85 maintains the speed VF of the feed chain 12B in the first to third states. To do.

  On the other hand, when it is determined that the mode switch 6B has been input, the speed VF of the feed chain 12B is controlled to the speed calculated by the following equation 3. The speed VF of the feed chain 12B can be increased / decreased within a range of 10 to 20% by the speed control dial 6A. It is preferable to increase the speed VF of the feed chain 12B by operating 6A.

Formula 3 VF = 0.25-0.5 * VH1
(First stop method of feed chain)
FIG. 13 shows a first stopping method of the feed chain 12B driven by the first driving method.

  The operation state of the stop switch 6D is shown in the first stage from the upper side of FIG. 13, and in the second stage, the feed chain hydraulic continuously variable transmission 10 for increasing and decreasing the rotational speed transmitted to the feed chain 12B. The position of the trunnion shaft 10F is illustrated, and the speed VF of the feed chain 12B is illustrated in the third stage. Further, the driving state of the engine 62 is illustrated in the fourth stage of FIG. 13, and the speed VH of the transport device 34 provided in the reaping device 3 that is driven in conjunction with the traveling device 2 is illustrated in the lowermost stage. .

  First, the control device 85 determines whether or not there is an input from the stop switch 6D. If it is determined that there is no input from the stop switch 6D, the control device 85 drives the feed chain 12B by the first driving method.

  On the other hand, when it is determined that the stop switch 6D has been input, the first transmission motor 10C connected to the trunnion shaft 10F of the feed chain hydraulic continuously variable transmission 10 is driven, and the rotational position of the trunnion shaft 10F is determined. The rotation of the output shaft 10B of the feed chain hydraulic continuously variable transmission 10 is stopped by rotating to a neutral position. As a result, the driving force to the feed chain 12B is interrupted, and the rotation of the feed chain 12B stops.

  When it is determined that the stop switch 6D has been input, the engine 62 is stopped to stop the rotation transmitted to the traveling hydraulic continuously variable transmission 66, and the traveling device 2 and the reaping device 4 are provided. The rotation of the transport device 34 is stopped.

  In order to stop the feed chain 12B more quickly, it is preferable to rotate the trunnion shaft 10F slightly beyond the neutral position to a position on the reverse side.

(Second method for stopping the feed chain)
FIG. 14 shows a second stopping method of the feed chain 12B driven by the second driving method. In addition, the same code | symbol is attached | subjected to the same member as a 1st stop method, and the overlapping description is abbreviate | omitted.

  First, the control device 85 determines whether or not there is an input from the stop switch 6D. If it is determined that there is no input from the stop switch 6D, the control device 85 drives the feed chain 12B by the second driving method.

  On the other hand, when it is determined that the stop switch 6D has been input, the rotation position of the trunnion shaft 10F is driven by the second transmission motor 10E connected to the trunnion shaft 10F of the feed chain hydraulic continuously variable transmission 10. The rotation of the output shaft 10B of the feed chain hydraulic continuously variable transmission 10 is stopped by rotating to a neutral position. As a result, the driving force to the feed chain 12B is interrupted, and the rotation of the feed chain 12B stops.

  When it is determined that the stop switch 6D has been input, the engine 62 is stopped to stop the rotation transmitted to the traveling hydraulic continuously variable transmission 66, and the traveling device 2 and the reaping device 4 are provided. The rotation of the transport device 34 is stopped.

  In order to stop the feed chain 12B in an emergency, the second speed change motor 10E sets a reduction ratio or the like larger than that of the first speed change motor 10C used in the first stop method, and the first speed change motor 10C moves the trunnion shaft 10F. The trunnion shaft 10F can be rotated at a higher speed than when rotating. Further, in order to stop the feed chain 12B more quickly, the trunnion shaft 10F is rotated until it slightly exceeds the neutral position to the reverse rotation side position, and the rotation of the output shaft 10B is stopped by the rotation sensor 68G. It is preferable to rotate the trunnion shaft 10F from the reverse rotation side position to the neutral position after the rotation of the output shaft 10B is detected again or after 1 to 2 seconds have elapsed.

  In order to remove cereals and the like clogged between the feed chain 12B and the pinch 12C, the rotation direction of the feed chain 12B can be switched by operating the reverse switch 6C. In this case, in order to prevent inadvertent reverse rotation of the feed chain 12B and increase the safety of the auxiliary worker, the feed chain 12B is driven to rotate reversely only when the reverse rotation switch 6C is operated. In order to ensure time to leave the combine, in order to drive the reverse of the feed chain 12B after the reversing switch 6C has been operated for 1 to 2 seconds or to notify the surrounding collaborators of the reverse state of the feed chain 12B, It is preferable to sound the horn when the feed chain 12B is reversed.

  In addition, after the stop switch 6D is operated and the feed chain 12B, the engine 62, etc. are stopped, in order to start the engine 62 again, it is necessary to release the mode switch 6B and switch to the normal cutting mode.

DESCRIPTION OF SYMBOLS 3 Threshing device 4 Harvesting device 12A Clamping rod 12B Feed chain 26B Handle
34 Conveying device 40 Handling restriction member 42 Rear plate (plate part)
43 Rear auxiliary clamp 44 Bracket (support)
46 Mode switch (switch)
50 treatment room

Claims (2)

A threshing device (3) disposed behind the reaping device (4) and a feed disposed along a handle (26B) formed on one side of the handling chamber (50) of the threshing device (3). A combine comprising a chain (12B) and a clamping rod (12A) arranged to face the upper side of the feed chain (12B), and facing backward from the conveying terminal end side of the reaping device (4) Hand-handling restricting member (40) having a vertically extending plate portion (42) and a support portion (44) for supporting the front portion of the hand-handling restricting member (40) so as to be vertically rotatable. And a rear auxiliary pinch (43) that holds the grain straw transported to the feed chain (12B) from the cutting device (4) side transfer device (34) to the feed chain (12B). the provided downward the restriction member (40) threshing the hand during normal reaper threshing work Rear and said plate portion provided in the rowing regulating member (40) together with reducing the distance between the front of the clamping Ji杆(12A) of rotated該手Threshing restricting member (40) (42) Is positioned above the rear auxiliary clamp (43) in a side view of the fuselage and is restricted from being placed on the front part of the feed chain (12B), and the handling operation Occasionally, the handle restricting member (40) is pivoted upward to increase the distance between the rear portion of the handle restricting member (40) and the front portion of the clamping rod (12A) and the rear auxiliary The upper part of the pinch (43) is opened so that it can be switched to a non-regulated state in which the hand-held cereals are allowed to be placed on the front of the feed chain (12B). A switch (46) to be pressed is provided, and when the switch (46) is pressed, the mode is switched to the handling mode. Combine, characterized in that the configuration and the.   The combine according to claim 1, wherein the feed chain (12B) is driven at a constant speed when the switch (46) is pressed to switch to a handling mode.

Images