JPH10215647A - Dropper structure for combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the dropper structure of a combine harvester capable of being constituted at a low cost and being housed in nonuse. SOLUTION: A waste straw receiving tool 7 is fitted freely swingably and switchably to a receiving posture for receiving waste straws discharged from a waste straw carrying device 3 and a releasing posture for dropping and releasing the received waste straws and a control guide rod 10 is supported in cantilever to a lid body 8 freely swingably, openably and closably attached on the rear end of a case 6 for housing the waste straw carrying device 3. Also, the control guide rod 10 is fitted freely posture-switchably to a housing posture for being housed near the lid body 8 in a closed posture and a using posture for being hung and supported from the lid body 8 in an open posture and controlling the falling of the waste straws from the free end of the waste straw receiving tool 7 in the receiving posture.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a combine dropper structure.

[0002]

2. Description of the Related Art Conventionally, as a dropper structure of a combine, a straw for threshing process discharged backward from a transport end of a waste straw transporting device is received and supported by a waste straw receiving device, and the drainage is carried out. It is well-known that when a predetermined amount of straw is accumulated, the discharged straw receiver automatically swings downward, thereby discharging the discharged straw collectively to the ground, and then automatically returning to the discharged straw receiving position. In the above-mentioned conventional structure, a shaft along the up-down direction for restricting the discharged straw discharged from the discharged straw transporting device from protruding from the free end of the discharged straw receiving device is provided with a discharging straw transporting device. Is connected and supported in a suspended state at the rear end of an arm member continuously extended in a rearward state of the case for storing the arm member.

[0003]

However, in the above-mentioned conventional structure, for example, as shown in FIG. 4, the arm member 10 'is provided so as to extend rearward from the rear end of the case 6. Since the rods 10, 10 are provided, there is a problem that the rod is not configured to be stowable, and the provision of the arm member 10 'increases the number of parts and leads to an increase in cost.

The present invention has been made in view of the above circumstances, and has as its object to provide a combine dropper structure which is simple in structure, can be constructed at low cost, and can be stored when not in use.

[0005]

[Means for Solving the Problems]

(Structure) The combine dropper structure according to the first aspect of the present invention swings between a receiving position for receiving the discharged straw from the discharging device and a discharging position for dropping and discharging the received discharged straw. A discharge straw receiving device is freely provided, and a restricting guide rod is cantilevered on a lid that is swingably opened and closed at a rear end of a case for accommodating the discharge straw conveying device, and the restricting guide rod is closed. A storage position in which the storage device is suspended from the lid body in the open position, and a use position in which the storage device is configured to suspend and support the discharge straw from the free end of the discharge straw receiving device in the receiving position. Is provided so as to be able to switch the posture.

(Operation) According to the structure of the first aspect of the present invention, the rear end of the case for accommodating the waste straw transporting device can be freely opened and closed, and the maintenance of the waste straw transporting device and the like can be performed. In the case of a dropper operation for discharging a predetermined amount of straw by a predetermined amount, a lid for opening and closing the rear end of the case is swung to an open position, and a regulating guide rod is suspended from the lid and supported. In this case, the use posture is such that the straw is prevented from dropping out of the free end of the straw receiver. On the other hand, when the dropper operation is not performed, the rear end of the case is closed with the lid. So that it does not protrude.

(Effects) Therefore, according to the first aspect of the present invention, since the lid is also used as a member for installing the regulating guide rod, the number of parts can be reduced and the cost can be reduced. In addition, when the dropper work is not performed, the control guide rod can keep the lid aside and close the lid to prevent it from protruding outward. Since the members protruding rearward from the case can be eliminated, the longitudinal length of the body can be shortened, and the problem of the lid or the like coming into contact with other objects when traveling on a road or the like can be avoided. Further, since the lid is pivotally opened and closed, switching to the dropper working state can be easily performed.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 to 4 show a waste straw processing unit at the rear of the combine. More specifically, the waste straw processing unit transfers the waste straw after threshing by a threshing device (not shown) from the feed chain 2 to the waste straw transport chain 3 as a waste straw transport device, and transports the waste straw to the rear of the machine. I am trying to do it. The transported waste stirrer can be switched between a state where it is discharged from the waste straw transporting chain 3 to the waste straw shredding device 4 and a state where it is discharged to the dropper device 5 behind the waste straw shredding device 4. It is composed. That is, by changing the rear end position of the holding rail 3a in the waste straw transporting chain 3 back and forth, it is possible to freely switch between a state of being discharged to the waste straw shredding device and a state of being discharged to the dropper device 5. Make up.

[0009] The dropper device 5 includes a discharge straw transport chain 3.
Is installed at the rear end of the case 6 in which is stored. More specifically, a waste straw receiver 7 made of a sheet metal is supported on the lower side of the case 6 so as to be swingable around the horizontal axis P1. Then, a rear wall portion of the case 6, which is behind the straw distributing and transporting chain 3, of the case 6 covering the discharging straw and distributing chain 3 is supported so as to be swingable around the horizontal axis P2 to form a lid 8. I have. The lid 8 can be fixedly held in a posture in which the rear part of the case 6 is opened and a posture in which it is closed by a posture holder 9. And at the free end of the lid 8,
One end of a pair of left and right metal regulating guide rods 10 is pivotably supported. That is, as shown in FIGS. 1 to 3, the left and right side edges and the lower edge 8 a of the lid 8 have a flange structure that extends forward in a closed state, and the lower edge 8 a has friction. The pair of left and right regulating guide rods 10, 10 are cantilevered so as to be swingable left and right in a held state and can be held in an appropriate posture. These regulating guide rods 10 can be suspended from the lower edge 8a of the lid 8 while the lid 8 is held in the open position. In the suspended state, the lower end portions of the regulating guide rods 10, 10 are engaged with a pair of left and right locking grooves 11, 11 formed on the rear end edge of the discharge straw receiving member 7 in the receiving position, and receive the discharge straw. The stirrer supplied to the tool 7 is regulated so as not to fall backward, and is guided so as to be placed on the stirrer receiver 7. A link rod 12 is erected between the two regulating guide rods 10 so as to be relatively swingable.
Since each of the first and second control rods 0 and 10 is swingable in an interlocking manner, the rocking operation is performed by holding one of the regulating guide rods 10 or the link rods 12 so that the locking groove is formed as shown by a two-dot chain line in FIG. 1
The two restriction guide rods 10, 10 which have been released from being locked to the rods 1, 11
2 can be easily switched between a state in which both enter into the lid 8 and a state in which the cantilever is in a suspended posture as shown by a solid line in FIG.

The discharge straw receiving member 7 is supported between the case 6 by a biasing mechanism (not shown), and a load acting on the biasing mechanism due to the accumulation of the discharge straw on the discharge straw receiving member 7 is fixed. As a result of the above, the waste straw receiver 7
The receiving position of the lock is released, and the waste straw receiver 7 is moved to the horizontal axis P1.
It swings downward around, thereby discharging the waste straw from the waste straw receiver 7 downward. The discharge straw receiving member 7 returns to the original receiving posture by the return urging action of the urging mechanism in which the discharge straw load is released by the release, and stands by.

With the above configuration, when the dropper device 5 is used, the lid 8 is swung so as to be substantially horizontal, the posture is held by the posture holder 9, and the regulating guide rod 1 is held.
0 and 10 are oscillated in a suspended position, and the
Are locked in the locking grooves 11, 11. When the dropper device 5 is not used, the lid 8 is closed, and the drain stirrup receiver 7 is swung and held so that the case 6 is moved aside.

[Brief description of the drawings]

FIG. 1 is a longitudinal side view showing a dropper and the like.

FIG. 2 is a longitudinal rear view showing a dropper and the like.

FIG. 3 is a plan view showing a dropper and the like.

FIG. 4 is a longitudinal sectional side view showing a conventional dropper and the like.

[Explanation of symbols]

 Reference Signs List 3 waste straw transporting device 6 case 7 waste straw receiver 8 lid 10 regulation guide rod

Claims (1)

[Claims] An exhaust straw receiving device is provided for swingably switching between a receiving posture for receiving the exhaust straw discharged from the exhaust straw transporting device and a discharging posture for dropping and discharging the received exhaust straw. A restricting guide rod is cantilevered on a lid that is swingably opened and closed at the rear end of a case that stores the transfer device, and the restricting guide rod is moved toward the lid in a closed position and stored. And a dropper structure of a combine which is suspended and supported from the lid in an open position, and is used in a receiving position in which the position of the discharge stirrup receiver is restricted so that the discharge stirrer falls out of the free end thereof. .