JP2006055051A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To perform a tightening operation to eliminate the margin portion of a support portion disposed between the upper portion of a grain tank and the upper portion of a vertical discharging auger as a rotation supporting point with an operation tool to fix both the upper portions, thereby preventing the downward inclination of one side of the grain tank, before the grain tank is laterally turned. <P>SOLUTION: This combine harvester is characterized by disposing a weight sensor 32 for measuring the weight of the grain tank under one end of the grain tank 13, supporting the other end of the grain tank so that the grain tank can laterally be turned around the vertical discharging auger 15a of a grain-discharging apparatus, disposing an allowance portion 59 and a tightening band 63 for eliminating the allowance of the allowance portion 59 between the vertical discharging auger 15a and a portion for supporting the grain tank 13, connecting the tightening band 63 to a lever 71 for fixing the grain tank, and disposing a lock lever for maintaining the fixing position at a place near to the lever 71 for fixing the grain tank. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a technique for measuring the weight of grains stored in a grain tank of a combine, and more specifically, the grain tank can be pivoted sideways around a vertical pivot point on one side of the front and rear. When the grain tank is located on the fuselage frame and detects the weight of the grain in the grain tank, the grain tank is allowed to swing with the lower part of one side as a fulcrum and rotated sideways. The present invention relates to a technique for preventing rocking with respect to a rotation fulcrum shaft when moving and releasing.

  Conventionally, a grain tank for storing harvested grains has been arranged on the fuselage frame of the combine, and a lower part of the grain tank has been provided with a discharge conveyor for discharging grains to the outside, and a vertical discharge auger is provided at one end of the discharge conveyor. And the grain in the Glen tank can be discharged by a horizontal discharge auger connected to the upper part of the vertical discharge auger. The Glen tank can be opened laterally around a vertical auger so that maintenance of the sorting device, the first conveyor, the second conveyor, the cereal conveyor, etc. can be facilitated.

Furthermore, in order to measure the weight of the grain stored in the Glen tank, the other side can be slightly swung with the lower part on the vertical discharge auger side as a fulcrum, and a weight sensor is arranged on the lower part on the other side, The technique of detecting the weight of the grain stored in the Glen tank by a sensor is known (see, for example, Patent Document 1).
JP 2004-129522 A

  In the prior art, the glen tank is configured so that it can be opened laterally around a vertical discharge auger in the vertical direction, and in order to detect the weight of the grains in the glen tank, The other side is configured such that the other side can be swung up and down with the lower part as a fulcrum, and the weight can be measured by a weight sensor arranged at the lower part on the other side. Therefore, in order to allow the other side of the grain tank to swing up and down, the part supporting the upper part of the vertical discharge auger and the one side upper part of the grain tank is attached with some allowance. Therefore, when the Glen tank is rotated and opened to the side for maintenance or the like, the side opposite to the vertical discharge auger, that is, the side on which the front weight sensor is arranged is lowered downward by the margin. In this way, when the Glen tank is opened, if the side opposite to the pivot fulcrum falls, after maintenance, etc., when returning the Glen tank to its original position, the lower side is lifted and rotated to set it to its original position. Must.

  When this is set up by lifting, it can be easily returned if it is a small glen tank and is empty, but it may not be able to lift alone if the grain is stored in a large glen tank. In addition, if the tilt is large and it is vigorously rotated to the original position, the lower part of the Glen tank may hit the aircraft frame and damage it.

  Therefore, before rotating the Glen tank to the side, using the operation tool, tighten the two parts by tightening them so as to eliminate the margin of the support part provided between the upper part of the Glen tank and the upper part of the vertical discharge auger. Is fixed so that one side can be opened without tilting downward. And when it is returned to its original position, the cover is not closed if the operation tool is still in the tightened state, and it is possible to prevent forgetting the release operation so that there is a margin. This ensures that the weight can be detected.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

  That is, according to claim 1, a grain tank for storing the harvested grain and a grain discharging device for discharging the grain in the grain tank to the outside are provided, and the weight of the grain tank is measured at a lower end of one end of the grain tank. A weight sensor is provided and supported at the other end of the grain tank so as to be pivotable laterally around the vertical discharge conveyor of the grain discharge device, and an allowance part and the allowance part between the vertical discharge conveyor and the Glen tank support part. The means for canceling the allowance is provided, and the operating means for operating the means for canceling the allowance of the allowance portion is provided on the side of the Glen tank.

  According to a second aspect of the present invention, a means for eliminating the permission of the permission portion is constituted by a tightening band, and one end of the tightening band is connected to a Glen tank fixing lever serving as the operation means via a wire. .

  According to a third aspect of the present invention, a lock lever for maintaining a fixed position is provided in the vicinity of the Glen tank fixing lever.

  According to a fourth aspect of the present invention, a side cover that covers the outside of the grain tank fixing lever is detachably provided on the side of the grain tank, and the side cover cannot be attached to the grain tank when the grain tank fixing lever is in the fixed position. It is a thing.

  As effects of the present invention, the following effects can be obtained.

  A weight sensor for measuring the weight of a Glen tank at a lower end of one end of the Glen tank, comprising a Glen tank for storing harvested grains and a grain discharging device for discharging the grains in the Glen tank to the outside. The other end of the grain tank is supported so that it can be rotated laterally around the vertical discharge conveyor of the grain discharge device, and an allowance is provided between the vertical discharge conveyor and the Glen tank support part, thereby reducing the weight. The weight of the grain can be measured by measuring the weight of one side of the Glen tank with a sensor. And by providing means for canceling the allowance of the allowance part, when the Glen tank is fixed to the vertical discharge conveyor and the Glen tank is opened to the side, the opposite side does not tilt downward, and the set position is set to the original position. You don't need great power when you do. Further, since the operation means for operating the means for canceling the allowance of the allowance portion is provided on the side of the Glen tank, even if the allowance portion is arranged at a high position, it can be operated on the side of the Glen tank. In addition, it is possible to improve the operability by concentrating and arranging operation units such as a lock device for releasing and a release of the drive unit.

  According to a second aspect of the present invention, the means for eliminating the permission of the permission portion is constituted by a tightening band, and one end of the tightening band is connected to the Glen tank fixing lever serving as the operation means via a wire. With such a configuration, the vertical discharge conveyor can be tightened to eliminate the clearance between the allowable portions, and the operation of the allowable portions can be easily performed by turning the lever.

  Since the lock lever for maintaining the fixed position is provided in the vicinity of the Glen tank fixing lever as in claim 3, the Glen tank fixing lever can be easily held at the tightening position, Easy operation when opening.

  According to a fourth aspect of the present invention, a side cover that covers the outside of the grain tank fixing lever is detachably provided on the side of the grain tank, and the side cover cannot be attached to the grain tank when the grain tank fixing lever is in the fixed position. Therefore, it can be determined whether or not the glen tank fixing lever has been released by attaching or detaching the cover, and forgetting to release the glen tank fixing lever can be prevented, thereby avoiding a situation in which measurement by the weight sensor cannot be performed during operation.

Next, embodiments of the invention will be described.
1 is a left side view of a combine which is an embodiment of the present invention, FIG. 2 is a plan view of the combine which is an embodiment of the present invention, and FIG. 3 is a right side of the combine which is an embodiment of the present invention. FIG. 4 is a front view of a combine which is an embodiment of the invention, FIG. 5 is a side view of a grain tank and a vertical discharge auger, and FIG. 6 is a schematic diagram showing a power transmission path from the engine to the grain discharge device, 7 is a side view of the operation unit, FIG. 8 is a plan view of the same, FIG. 9 is a front view of the operation unit, FIG. 10 is a plan view of a permissible portion of the vertical discharge conveyor, and FIG.

First, the overall configuration of the combine 201 according to an embodiment of the present invention will be described with reference to FIGS.
An airframe frame 2 is placed on the crawler type traveling device 1, and a raising / cutting portion 3 is arranged to be raised and lowered in front of the airframe frame 2. In the pulling / cutting section 3, the cereals are weeded by a weed board 4 projecting forward, and pulled by a tine 6 projecting from a pulling case 5 standing behind the weed board 4. It is raised and cut from the stockholder side by the cutting blade 7 disposed behind the raising case 5.

  A threshing unit 12 including a handling cylinder and a processing cylinder is arranged behind the pulling / cutting unit 3, and a cereal carrying device 8 is disposed between the pulling / cutting unit 3 and the threshing unit 12. Yes. Further, a feed chain 9 extends rearward from the threshing portion 12 behind the conveying device 8. The cereals harvested by the pulling / reaping unit 3 are inherited from the conveying device to the feed chain 9, and the stock chain side is conveyed backward by the feed chain 9. Thereby, the tip side of the cereal is transported into the threshing unit 12, and the threshing of the cereal is performed in the threshing unit 12.

  A waste chain 18 is disposed at the rear end of the feed chain 9, and a waste processing unit 19 including a waste cutter device, a diffusion conveyor, and the like is disposed below the rear portion of the waste chain 18. After the threshing (removal) after being threshed by the threshing unit 12 is transported from the feed chain 9 to the rejection chain and released as it is, or after being cut into pieces by the rejection processing unit 19 Released while being diffused.

  In addition, a sorting unit 17 is disposed below the threshing unit 12, and the sorting unit 17 sorts the grain from grains, swarf and the like flowing down from the threshing unit 12. And the grain after sorting among grain, sawdust, etc. is conveyed to the Glen tank 13, and sawdust etc. are discharged outside the machine.

  The grain tank 13 is disposed on the side of the threshing unit 12, and a cab 14 is disposed in front of the grain tank 13, while a grain discharging device 15 is disposed behind and above the grain tank 13. ing. The grain discharge device 15 includes a vertical discharge auger 15 a and a horizontal discharge auger 15 b, and the vertical discharge auger 15 a is erected on the machine frame 2 behind the grain tank 13. The Glen tank 13 is configured to be pivotable laterally about the vertical discharge auger 15a, and the horizontal discharge auger 15b is configured to be pivotable in the vertical direction by a pivot fulcrum provided on the rear portion thereof. Has been.

  As shown in FIG. 5, a weight sensor 32 for measuring the weight of the Glen tank 13 is disposed below the front of the Glen tank 13, and the weight sensor 32 is a load cell type sensor, as shown in FIG. Further, it is connected to the control means 53.

  Furthermore, as shown in FIG. 5, a moisture sensor 35 for measuring grain moisture is disposed on the inner upper part of the grain tank 13 so that the moisture content of the grain stored in the grain tank 13 can be measured. Yes. As shown in FIG. 11, the moisture sensor 35 is connected to the control means 53, and a signal (information) related to grain moisture detected by the moisture sensor 35 is transmitted to the control means 53. .

  In addition, a screw-type discharge conveyor 16 is disposed in the front-rear direction at the inner lower portion of the Glen tank 13, and one end of the discharge conveyor 16 is connected to the grain discharge device 15. Thus, after being conveyed from the grain tank 13 to the grain discharging device 15 by the grain discharging conveyor 16 in the grain tank 13, it is discharged to the outside from the front end portion of the horizontal discharging auger 15b through the vertical discharging auger 15a. .

Next, the driving force transmission path from the engine to the grain tank and the grain discharging device will be described with reference to FIG.
An input shaft of a traveling mission case 47 for driving the crawler type traveling device 1 is connected to the front output shaft 101 b of the engine 101 so that driving force is transmitted to the crawler type traveling device 1. On the other hand, the rear output shaft 101a has pulleys 102, 102, 102 for transmitting driving force to the threshing unit 12 and the sorting unit 17, and a pulley 103 for transmitting driving force to the grain tank 13 and the grain discharging device 15. Are inserted.

  In addition, a drive case 104 is disposed on the lower front surface of the Glen tank 13 substantially behind the engine 101, and a drive case input shaft 105 projects from the drive case 104 to the front of the machine body. A pulley 106 is fitted on the front end of the drive case input shaft 105, and a V-belt 107 is wound around the pulley 106 and a pulley 103 fitted on the rear end of the rear output shaft 101a to drive the engine 101. A part of the force is transmitted to the input shaft 105 of the drive case 104. The V-belt 107 is provided with an auger clutch 118 that also serves as a tension pulley of the V-belt 107, so that the auger clutch 118 can transmit or block the driving force downstream from the drive case 104. However, a speed reduction mechanism may be provided between the rear output shaft 101a and the pulley 103.

  The drive case 104 contains gears 108 a and 108 b that mesh with each other, and one of the two gears 108 a and 108 b is located at the rear end of the input shaft 105 that is pivotally supported by the drive case 104. The other gear 108 b is externally fitted and fixed to a conveyor drive shaft 56 that is a rotating shaft fitted to the front end of the discharge conveyor 16.

  A bevel gear 109 is fitted on the rear end of the discharge conveyor 16, and a bevel gear 111 fitted on the lower end of the screw-type vertical feed conveyor 110 in the vertical discharge auger 15 a is meshed with the bevel gear 109. On the other hand, a bevel gear 112 is fitted on the upper end of the longitudinal feed conveyor 110, and the bevel gear 113 is meshed with the bevel gear 112. The bevel gear 113 and the bevel gear 115 are interlocked and connected to an intermediate case 114 in which a chain and a sprocket are provided, and the bevel gear 115 is fitted to one end of a screw-type transverse feed conveyor 117 in the lateral discharge auger 15b. 116 is meshed.

  With this configuration, the driving force is transmitted from the discharge conveyor 16 to the vertical feed conveyor 110 and the horizontal feed conveyor 117 of the grain discharge device 15. That is, the grain in the grain tank 13 is conveyed rearward by the discharge conveyor 16, and is forcibly discharged from the front end of the horizontal discharge auger 15b through the vertical discharge auger 15a located behind the grain tank 13.

  Next, the structure of each part of the grain discharging apparatus 15 and its operation means will be described with reference to FIGS. 2, 5, and 6.

  As shown in FIG. 5, in the grain discharging apparatus 15, the base side of the horizontal discharge auger 15b is pivotally attached to the upper end of the vertical discharge auger 15a so as to be vertically rotatable. An auger elevating cylinder 130, which is an elevating actuator in the combine 201, is configured to be expanded and contracted by switching of a hydraulic control valve, and is pivotally attached to a bracket 131 having one end projecting from the side surface of the vertical discharge auger 15a. The other end is pivotally attached to a bracket 132 protruding from the side surface of the horizontal discharge auger 15b. Thus, by extending and retracting the auger elevating cylinder 130, the horizontal discharge auger 15b is rotated in the vertical direction. The auger elevating cylinder 130, which is an elevating actuator in the combine 201, is a hydraulic cylinder, but may be other electric or hydraulic motors and is not limited.

  A gear 133a is fitted and fixed in the middle of the vertical discharge auger 15a, and a gear 133b fitted on a rotation shaft 134a of an auger turning motor 134 as a turning actuator is meshed with the gear 133a. Thus, by operating the auger turning motor 134, the vertical discharge auger 15a and the horizontal discharge auger 15b are integrally turned. Further, an auger turning angle sensor 135 is provided coaxially with the gear 133b. The auger turning motor 134, which is a turning actuator in the combine 201, is an electric motor, but may be a hydraulic motor or other hydraulic cylinder, and is not limited. The auger turning angle sensor 135 is a resolver, a rotary potentiometer, a rotary encoder, or the like, and the turning angle of the lateral discharge auger 15b is detected by the auger turning angle sensor 135.

  A discharge case 136 is provided at the tip of the horizontal discharge auger 15b. In the discharge case 136, a bearing portion made up of a ball bearing or the like is formed in order to pivotally support the transverse feed conveyor 117. The lower surface of the discharge case 136 is opened, and a cylindrical sleeve 137 is attached along the edge of the opening. The sleeve 137 is made of a flexible resin or the like, and the lower end of the sleeve 137 is a grain outlet 138. Thereby, the grains dropped from the lower surface of the discharge case 136 can be concentrated and discharged in the vicinity immediately below the grain discharge port 138 without being scattered around.

  The auger rest 52 is a member that supports the horizontal discharge auger 15b of the grain discharge device 15 when the grain discharge device 15 is not used. As shown in FIG. 1 and FIG. 4, the auger rest 52 is formed in a substantially Y shape, and a sensor 54 for detecting the lateral discharge auger 15 b is arranged in the concave portion of the upper mounting portion and connected to the control means 53. Has been. Thus, when it is detected that the horizontal discharge auger 15b is placed on the mounting portion of the auger rest 52, the weight of the glen tank is measured by the weight sensor 32, and the grain weight, moisture, etc. during the cutting operation are measured. And stored in the storage unit 55. Further, when the sensor 54 detects that the lateral discharge auger 15b is not in the placing portion, the weight when discharged by the discharge device 15 is measured. Further, the measured grain tank weight, grain moisture, and the like can be printed on a recording sheet by the printing device 39 connected to the control means 53 or displayed on the display device 42. Further, the obtained grain weight can be stored in the storage unit 55, and the grain weight at an arbitrary time such as after the harvesting operation can be printed by the printing device 39 or displayed on the display device 42.

  As shown in FIG. 5, in the present invention, an allowance portion 59 and a rotating Glen tank fixing mechanism 60 are provided on the upper portion of the vertical discharge auger 15 a and the rear portion of the Glen tank 13, and on the lower outer surface of the Glen tank 13. An operation unit 70 is provided for operating the rotating Glen tank fixing mechanism 60, and the rotating Glen tank fixing mechanism 60 and the operating unit 70 are connected to each other by a connecting member such as a wire. Thus, when the Glen tank 13 is rotated to the side for maintenance or the like, the allowance of the allowance portion 59 is canceled and fixed to the vertical discharge auger 15a.

  That is, the rotating Glen tank fixing mechanism 60 is disposed on the upper side of the gear 133a. As shown in FIG. 10, a guide plate 61 having a substantially U-shape in plan view is disposed in the horizontal direction and opened. The side end is bent outward in the left-right direction and is fixed to the rear surface of the glen tank 13 as an attachment portion. The notch of the guide plate 61 is formed so as to match the outer shape of the vertical discharge auger 15a, and a substantially M-shaped receiving body 62 straddles both inner surfaces on the open side of the guide plate 61. It is fixed. The left and right central portions of the receiver 62 are also curved in accordance with the outer shape of the vertical discharge auger 15a, and the vertical discharge auger 15a is formed in a space formed between the receiver 62 and the back of the guide plate 61. Further, a fastening band 63 for fixing is disposed between the inner back portion of the guide plate 61 and the vertical discharge auger 15a.

  In the space between the tightening band 63 and the receiving body 62, the Glen tank 13 is configured to be able to swing forward and backward by a predetermined width with respect to the vertical discharge auger 15a. That is, gaps are formed between the fastening band 63 and the vertical discharge auger 15a and between the receiving body 62 and the vertical discharge auger 15a to form the permissible portion 59. The allowance unit 59 allows the Glen tank 13 to swing only in the front-rear direction and not in the left-right direction. When the weight of the grain in the Glen tank 13 is detected by the weight sensor 32, The Glen tank 13 can swing back and forth between at least an empty state and a full tank state. When the glen tank 13 and the vertical carry-out auger 15a are rotated integrally, the tightening band 63 is used as a means for eliminating the permission of the permission portion 59, and the tightening band 63 is pulled and tightened toward the receiving body 62 to allow a clearance. The glen tank 13 and the vertical discharge auger 15a are fixed.

  That is, the fastening band 63 has a predetermined vertical width and is longer than approximately half of the outer periphery of the vertical discharge auger 15a, and is formed of an elastic plate. In this embodiment, the steel plate is configured to be curved in accordance with the outer shape of the vertical discharge auger 15a, and is sized so as to be able to press-contact with a substantially semicircle (180 degrees) on the outer periphery of the vertical discharge auger 15a. One end of the fastening band 63 is pivotally connected to a pivot shaft 65 provided on the left and right sides of the guide plate 61, and a pin 66 is disposed outwardly (perpendicular to the surface of the fastening band 63). ) And one end of a wire 64 serving as a connecting member is fixed to the pin 66. Further, a pin 67 protrudes in the vicinity of the pin 66, and one end of the spring 68 is locked. The other end of the spring 68 extends in the direction opposite to the wire 64, and is engaged with a predetermined portion of the guide plate 61. It has stopped. Thus, the tightening band 63 is biased in the direction away from the vertical discharge auger 15a by the biasing force of the spring 68, that is, in the loosening direction to increase the area of the permissible portion 59, and the tightening band 63 is measured when measuring the weight of the grain. Thus, the weight can be accurately measured without contacting the vertical discharge auger 15a. However, the pins 66 and 67 can be combined as one.

  A wire receiver 69 is disposed in the vicinity of the pin 66 connecting the wire 64, and the wire receiver 79 is integrally provided on the outer surface of the open end of the guide plate 61, and supports one end of the outer. It is guided so that the pulling direction by the wire 64 is substantially tangential to the outer periphery of the vertical discharge auger 15a.

  The other end of the wire 64 is extended to an operation unit 70 disposed on the lower side of the front portion of the Glen tank 13. As shown in FIGS. 7, 8, and 9, the operation unit 70 includes a Glen tank fixing lever 71 and a lock lever 72 that locks the Glen tank fixing lever 71 in a tightening position. A boss 71 a provided at the base of the Glen tank fixing lever 71 is pivotally supported by a pin 74 on a bracket 73 protruding from the lower outer surface of the front side of the Glen tank 13. The grain tank fixing lever 71 is formed in a substantially “h” shape in plan view, the base side is disposed forward, the pin 74 is directed in the vertical direction, and the rear part is substantially parallel to the side surface of the grain tank 13. Are arranged horizontally.

  On the base side of the grain tank fixing lever 71, a pin 75 is erected on the grain tank fixing lever 71 that is a predetermined distance away from the boss 71a, and the other end of the wire 64 is pivotally supported. The operation part side of the wire 64 is locked to a wire receiving part 73a formed in a part of the bracket 73, and guides the wire 64 so that it can slide in the front-rear direction.

  Further, a lock lever 72 is disposed in front of the Glen tank fixing lever 71, that is, in a direction opposite to the wire 64. One end of the lock lever 72 is pivotally supported by a mounting portion 76 provided at the front portion of the bracket 73 via a pivot shaft 77. A grip portion 72a and a hook portion 72b are formed on the other side of the lock lever 72, and the hook portion 72a can hold and hold the Glen tank fixing lever 71 in a state of rotating to the lock side. .

In this way, the wire 64 is pulled forward by rotating the Glen tank fixing lever 71 around the pin 74 serving as a rotation fulcrum, and the wire 64 is connected to the other end of the wire 64. One end of the band 63 is pulled, and the outer periphery of the vertical discharge auger 15 is pulled forward to come into contact with the receiving body 62, and the portion allowed by the allowance portion 59 is eliminated and fixed. In order to maintain the tightened state, the hook portion 72 b of the lock lever 72 is locked to the release lever 71. In this way, the Glen tank 13 and the vertical discharge auger 15a are integrated, and even if the Glen tank 13 is rotated to the side and separated from the rail on the machine body frame, the front portion of the Glen tank 13 (the vertical discharge auger 15a which is a rotation fulcrum) Therefore, when the glen tank 13 is returned to the original position, it is not necessary to rotate while lifting the front part.
The structure for fixing and releasing the Glen tank 13 to / from the vertical discharge auger 15a is not limited to the tightening structure by the belt, and a wedge or the like is inserted into the gap between the vertical discharge auger 15a and the guide plate 61 and fixed. Alternatively, a curved plate or the like can be fixed by pressing it with a cylinder or the like.

Also, a release lever 77 for releasing a lock member that fixes the Glen tank 13 to the machine body frame side (the threshing device frame side) and prevents it from rotating sideways is disposed in the vicinity of the operation unit 70. The release lever 77 is connected to a lock member (not shown) for fixing the Glen tank 13 to the machine body via a wire 78. However, the swing for detecting the weight by the weight sensor 32 is allowed even when the lock member is fixed. Thus, when the Glen tank 13 is opened to the side, the lock member can be released by rotating the release lever 77. The V belt 107 is disposed in the vicinity of the release lever 77, and the V belt 107 is removed before the glen tank 13 is opened.
As described above, the operation unit 70 is disposed in the vicinity of the release lever 77 and the driving unit on the front lower side portion of the Glen tank 13 so that the operation system is disposed in a centrally disposed portion so that the operation can be easily performed. Yes.

  Further, the lower side surface of the Glen tank 13 is covered by a side cover 80, and the grains remaining on the operation unit 70, the release lever 77, and the discharge conveyor 16 in the lower portion of the Glen tank 13 at the end of the work are discharged. The side cover 80 covers a maintenance lid for performing maintenance or the like. The side cover 80 is adapted to be attached to and cover the Glen tank 13 when the Glen tank fixing lever 71 is in a release position where the allowance portion 59 is allowed, and the Glen tank fixing lever 71 is rotated to the side. Thus, at the position where the vertical discharge auger 15a is tightened, it protrudes beyond the position where the side cover 80 is mounted, and the glen tank fixing lever 71 becomes in the way and cannot be set at the position covered by the side cover 80.

  With this configuration, a situation in which the operation of returning the Glen tank fixing lever 71 from the tightening position to the release position is forgotten and the weight in the Glen tank cannot be detected does not occur. That is, if the Glen tank fixing lever 71 is operated in the tightening position, the front of the Glen tank 13 cannot be lowered, and the weight sensor 32 cannot detect the weight of the grain. Therefore, it is necessary to keep the Glen tank fixing lever 71 at the tightening release position during operation. In other words, when the Glen tank is rotated to the side for maintenance or the like, and the operation such as maintenance is completed and the Glen tank 13 is simply returned to the original position, the Glen tank fixing lever 71 is moved to the side at the tightening position. The side cover 80 cannot be closed, and it can be easily recognized that the user has forgotten to release the tightening of the glen tank fixing lever 71. Forgetting to release the lever 71 can be easily prevented.

The left view of the combine which is one Embodiment of this invention. The top view of the combine which is one Embodiment of this invention. The right view of the combine which is one Embodiment of this invention. The front view of the combine which is one Embodiment of invention. A side view of a Glen tank and a vertical discharge auger. The schematic diagram which shows the power transmission path | route from an engine to a grain discharger. The side view of an operation part. The top view of an operation part. The front view of an operation part. The top view of the permission part of a vertical discharge conveyor. The block diagram which shows a control means.

Explanation of symbols

13 Glen tank 15 Grain discharging device 15a Discharging auger 32 Weight sensor 59 Allowable part 63 Tightening band 71 Glen tank fixing lever 201 Combine

Claims (4)

  A grain tank for storing the harvested grain and a grain discharging device for discharging the grain in the grain tank to the outside, a weight sensor for measuring the weight of the grain tank is provided at one lower part of the grain tank, the grain tank, etc. Means for supporting the vertical discharge conveyor of the grain discharger at the end so as to be pivotable to the side and eliminating the allowance between the vertical discharge conveyor and the glen tank support part and the allowance of the allowance part And the operation means for operating the means for eliminating the allowance of the allowance portion is provided on the side of the Glen tank.   The means for canceling the permission of the permission portion is constituted by a tightening band, and one end of the tightening band is connected to a Glen tank fixing lever as the operation means via a wire. Combine as described.   The combine according to claim 2, further comprising a lock lever for maintaining a fixed position in the vicinity of the Glen tank fixing lever. A side cover that covers the outside of the Glen tank fixing lever is detachably provided on the side of the Glen tank so that the side cover cannot be attached to the Glen tank when the Glen tank fixing lever is at a fixed position. The combine according to claim 2 or claim 3.

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