JPH0525405Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field The present invention relates to a grain discharge device such as a combine harvester.

PRIOR TECHNOLOGY A shutter is generally provided below the grain outlet of a grain tank mounted on a combine harvester, etc., to guide grains in the tank into a paddy bag.
In addition, a shutter is attached to the grain outlet so that it can be opened and closed. When taking out the grains, the paddy bag is set on a hanger with the shutter immersed in the opening of the paddy bag, and then the shutter is opened and the grains are discharged into the bag until the paddy bag is full. When that happens, he closes the shutter and replaces it with an empty paddy bag, a process he repeats.

Problems that the invention aims to solve: For this reason, the operator had to open and close the shutter each time, placing a burden on the operator. Conventionally, a model in which the shutter and the shutter are linked has been provided (Japanese Utility Model Publication No. 122245/1983), but this one
When the shutter is closed, the shutter rotates to take out the paddy bag, but conversely, even when the paddy bag is rotated, the shutter does not close in conjunction with it; the shutter closes each time. There are drawbacks such as the need to open and close the shutter manually, and when the shutter is closed, the shutter must be used to push out a full paddy bag, requiring a large amount of operating force.

Means for Solving the Problems Therefore, the present invention has been devised to provide a combine harvester, etc. in which a shutter is suspended below the grain outlet of a grain tank, and the grain outlet can be opened and closed by the shutter. The shutters are supported rotatably toward the paddy bag removal side via concentric fulcrum shafts, and the shutters are normally biased in the closing direction via the bullets, so that the shutters are opened when the shutters are open. The shutter is connected to the shutter so that when the shutter is rotated to the paddy removal side, the shutter is automatically closed by the above-mentioned bullet, and an operating lever is provided to operate the shutter to the open side, and the fulcrum shaft of the operating lever is connected to the shutter so that the shutter is automatically closed by the above-mentioned bullet. The above-mentioned problems are solved by providing the lever on the opposite side of the lever grip with the fulcrum shaft in between, and connecting the shutter and the operating lever on the opposite side of the operating lever's fulcrum shaft with the shutter fulcrum shaft in between. It is also an object of the present invention to provide a grain discharging device for a combine harvester or the like in which the operating stroke of the operating lever can be set as small as possible, making the lever operation easy and improving safety.

Function During bagging of grains in the tank, when the paddy bag becomes full and the paddy bag is pulled out to the outside, the shooter is pushed by the paddy bag and rotates toward the drawer side of the paddy bag. The shutter automatically closes in conjunction with this rotation of the shutter. At this time, the shutter operation lever also returns to rotation at the same time, but since the fulcrum shaft of the operation lever is separate from the shutter fulcrum shaft and is located on the opposite side of the lever grip with the shutter fulcrum shaft in between, The amount of movement becomes smaller. Furthermore, when opening the shutter, the operating stroke of the lever is reduced, making the operation easier.

Example A is a self-demolition combine harvester, in which a grain tank 2 is mounted on one side behind the driver's seat 1, a threshing section 3 is mounted on the other side, a preprocessing section 4 is mounted on the front of the machine body, and a grain tank 2 is mounted on the other side. A culm post-processing device 5 such as a cutter is provided respectively. 6 is a frying shell cylinder, the discharge port a of which is connected to the tank 2.
It is facing upward from the rear inner corner.

The tank 2 is provided with a plurality of funnel parts 2a in the front and back direction, each having one grain outlet in the inner and outer directions, and each funnel part 2a is formed in a rectangular shape that is long in the inner and outer directions so as not to reduce the tank capacity. has been done. In addition, below the funnel part 2a of the tank 2, a gutter body 2' with a fulcrum shaft 7 inserted and horizontally mounted is attached with a bolt (not shown).
The bottom plate 2'a of the gutter body 2' is formed into an arcuate surface centered on the fulcrum shaft 7, except for the inward slope b, and the bottom plate 2'a has a A grain outlet 8 is provided below the fulcrum shaft 7.

In the gutter body 2', a shutter, a shutter, and a linkage mechanism M for these two, which will be described later, are integrally incorporated as an assembly. C is a paddy bag inserted and supported by the hanger d. Reference numeral 9 denotes an arcuate shutter with a U-shaped side surface that is rotatably supported on the fulcrum shaft 7, and the shutter 9 slides along the outer periphery of the gutter body 2' to open and close the grain outlet 8. It's getting old. 1
0 is a shutter hanging below the grain outlet 8, and a plate 1 rotatably supported on a fulcrum shaft 7.
1 and 11', it is rotatably supported around a fulcrum shaft 7 toward the removal side of the rice bag C (in the direction of arrow A). In this shooter 10, the rear side 10a in the direction of taking out the paddy bag c is formed into a U-shape by a hard member such as an iron plate or transparent synthetic resin, and the front side 10b is formed by a flexible member such as transparent vinyl. They are connected in a unified manner. Due to this chute structure, even if the chute 10 is deformed due to receiving paddy pressure or being compressed by the paddy bag c, a space (grain discharge passage) is always maintained in the chute 10 by the U-shaped hard member. At the same time, the shutter 10 also serves as a stopper for preventing the paddy bag c from coming off. Now, the plate 11 on one side is extended diagonally above the fulcrum shaft 7 as shown in the figure, and the extending portion 1
Rollers 12, 12a are pivotally supported on 1a in a vertically different manner. Reference numeral 14 denotes a swinging arm that is arranged to straddle the rollers 12 and 12a, one end of which is pivotally supported by a pin 13 on the gutter body front plate 2'b, and the other end of which is supported by a pin 13a on a locking tool 17, which will be described later. It is pivotally connected through. Reference numeral 15 denotes a spring for positioning the shooter, which is stretched between the plate 11' and the gutter body rear plate 2'c.
Note that when the shooter 10 is rotated upward, the shooter 10
When the spring 15 crosses over the fulcrum and comes to a position slightly above the fulcrum shaft 7 due to its own weight and the resistance of the shooter rotating part, the shooter 10 is temporarily held at a position below the upper limit position shown in FIG. However, any further upward movement must be done manually.

A rubber stopper 16 is fixed to the gutter body 2', located on the rear side in the direction of pulling out the paddy bag, for regulating the rotation of the shutter 10 and the shutter 9, and a rubber stopper 16, located on the front side, for maintaining the shutter 9 in the open state. A locking tool 17 is rotatably attached via a fulcrum pin 18. 16
A is a U-shaped cover body sandwiched between the stopper 16 and the gutter body 2', which functions as a guide to prevent grains from scattering when the shutter is closed and to guide the scattered grains to the paddy bag, and also as a safety cover. It also serves the purpose of 16b is a buffer member attached to the gutter body 2'. 3 of the stopper 16, the cover body 16a and the buffer member 16b.
The material may be integrally made of rubber or the like.

17a is an engaging portion provided on the locking tool 17, and 17b is a handle. Reference numeral 19 denotes a coiled spring wound around the fulcrum pin 18. The coiled spring 19 moves the locking tool 17 clockwise in FIG. They are each energized. S is a spring made of a coiled spring wound around the protruding end side of the fulcrum shaft 7, and one end is attached to the gutter body front plate 2'.
b, and the other end is secured to the upper surface of a pin 20 protruding toward the outside of the upper part of the shutter 9, thereby always biasing the shutter 9 in the closing direction.

Reference numeral 21 denotes an operating lever for operating the shutter 9 to the open side, and its grip portion 21a is projected toward the paddy bag removal side for easy operation. The proximal end of the lever extends over the shutter fulcrum shaft 7 to above the stopper 16, and its extended end is pivotally supported on the gutter body front plate 2'b via the fulcrum shaft 22. Therefore, the fulcrum shaft 22 of the operating lever 21 is located on the opposite side of the lever grip portion 21a with the shutter fulcrum shaft 7 in between.

The middle part of the lever 21 is connected to the shutter 9 via a plate 21b fixed to the lever 21 and the pin 20. The connecting part between the plate 21b and the pin 20 has a play.
is a hook integral with the lever 21.

Next, the operating procedure of the present invention will be explained. First, in order to load the spare empty rice bag c onto the base end side of the hanger d, it is carried out in the state shown by the solid line in FIG. At this time, the shooter 10 moves upward to a position above the hanger d and does not get caught on the paddy bag c, making it easy to load the paddy bag c. Next, Shooter 1
0 to approximately the height of the hanger so that the shooter 10 faces the upper opening edge of the nearest paddy bag, and in this state, if the shooter 10 is further lowered, the shooter 1
0 comes into contact with the stopper 16 while recessed into the upper end opening of the paddy bag c, and is positioned in the upright position shown in FIG. Next, the shutter operating lever 21 is moved upward to engage the hook 21c with the engaging portion 17a of the locking tool 17, thereby holding the shutter 9 in the open state, and the work is started in this state.

By the way, since the moving stroke of the lever 21 is short when operating the lever, the operation is easier accordingly.
That is, if the base end of the operating lever 21 is temporarily fixed to the shutter fulcrum shaft 7 (the shutter 9 and the fulcrum shaft 7 are integrated and the fulcrum shaft 7 is rotatable), the lever 21
The rotation angle of the shutter 9 is the same as the rotation angle of the shutter 9. However, in the present invention, the lever fulcrum shaft 22 is provided on the opposite side of the lever grip 21a with the shutter fulcrum shaft 7 in between, so that the shutter can be shuttered with a small amount of lever movement. 9 can be rotated greatly, and therefore the lever 21
The amount of lifting required is small. Further, since the connecting portion between the operating lever 21 and the shutter 9 is biased closer to the grip portion 21a than the fulcrum shaft 7, the operating load is reduced compared to when the operating lever 21 is fixed to the fulcrum shaft 7.

Now, when the paddy bag c is full of grains, that paddy bag is pulled out to the outside (in the direction of arrow A) and the next paddy bag is set below the shutter 10. However, when pulling out the full paddy bag c, Since the paddy bag c pushes the shutter 10, the shutter 10 moves upward around the fulcrum shaft 7 toward the drawer side of the paddy bag c, and as a result, the roller 12 moves the swinging arm 14 around the pin 13 and the coiled spring 19. 3, the locking tool 17 rotates counterclockwise to release the engagement of the operating lever 21. Therefore, the shutter 9 is rotated downward by the force of the bullet S to close the grain outlet 8. Since this shutter closing operation is carried out immediately in conjunction with the upward movement of the shutter 10, due to the delay in the operation of the shutter 9, excessive grains in the tank 2 may be discharged into the paddy bag c, or grains may be thrown out of the paddy bag c. It won't spill or fall. When the shutter is closed, the operating lever 21 also moves down at the same time, but the rotation angle of the lever 21 is small (the third
(see figure), and since it moves downward only in the upper region away from the hanger d, manual action using the lever 21 is prevented, increasing safety.

By the way, when the shooter 10 moves upward by more than a predetermined angle, the spring 15 passes over the fulcrum and the shooter 10 is held at that angle.As the shooter 10 moves further upward, the point of application of upward force on the swinging arm 14 shifts from the roller 12 as shown in FIG. Along with being converted to Koro 12a,
The locking tool 17 is held in a retracted state in the direction of the fulcrum shaft 7 by the tensile force of the roller 12a and the spring 15. Therefore, since the operation lever 21 is not engaged with the locking tool 17 except when the shutter 10 is in the upright position, erroneous operation when taking out the paddy bag is prevented (unless the shutter 9 is opened carelessly). (also returns elastically with the bullet S). Note that the engaged state of the shutter 9 may be released manually by pushing down the handle 17b of the locking tool 17.

Now, if the paddy bag c is pulled out further to the outside, the shutter 10 will move further upward, and this together with the fact that the rear side of the shutter 10 is inclined makes it easier to pull out the paddy bag c. Further, since the shutter 9 and the shutter 10 are configured to rotate around the same fulcrum shaft 7, the linking mechanism M between them can be simplified, and the shutter 9
Since the outer periphery of the shutter slides along the arcuate surface of the bottom plate 2'a of the gutter body, grains do not bite when the shutter is opened and closed, and the operation is performed smoothly and reliably.

The present invention can also be applied as a discharge device for tanks other than grain tanks mounted on combine harvesters.

Effects of the Invention As described above, the present invention provides a combine harvester, etc. in which a shutter is suspended below the grain outlet of a grain tank and the grain outlet can be opened and closed by a shutter, in which the shutter and the shutter are arranged concentrically. The shutters are supported rotatably toward the paddy bag removal side via the fulcrum shafts provided above, and the shutters are always biased in the closing direction via the ammunition, and the shutters are removed from the paddy with the shutters open. The shutter is connected to the shutter so that when the shutter is rotated to the side, the shutter is automatically closed by the above-mentioned bullet, and an operating lever is provided to operate the shutter to the open side, and the fulcrum shaft of the operating lever is connected to the shutter fulcrum shaft. Since the shutter and the operating lever are connected on the opposite side of the operating lever's fulcrum shaft with the shutter fulcrum shaft in between, the operating load on the lever when operating the lever is reduced. It is possible to reduce the rotation angle of the operating lever (the amount of movement of the lever grip part) as much as possible, which reduces the burden on the operator when operating the lever (operating force and In addition, when the paddy bag is full, when taking out the paddy bag, the paddy bag pushes the shutter and the shutter rotates away from the paddy bag, and at the same time, the shutter is rotated by the bullet. Since it closes automatically and quickly, it not only improves the cutting of the paddy and prevents grains from coming out too much or spilling outside the paddy bag due to delays in shutter operation when taking out the paddy bag, but also improves the efficiency of bagging work. In addition, since the amount of movement of the operation lever when the shutter is closed by the bullet is small, it is possible to prevent manual operation due to automatic rotation of the lever when taking out the paddy bag, thereby increasing safety.

[Brief explanation of the drawing]

Figure 1 is an overall side view of the combine equipped with the present invention, Figure 2 is a front view of the grain tank, Figure 3 is a front view of the main parts, Figure 4 is a side view of the main parts, and Figure 5 is the front view of the grain tank. A partially cutaway sectional view of the main part, and FIG. 6 is an explanatory view of the action of the main part. In the figure, 2 is a grain tank, 7 is a shutter and the fulcrum shaft of the shutter, 8 is a grain outlet, 9 is a shutter,
10 is a shutter, 21 is a shutter operation lever,
21a is a lever grip part, 22 is a lever fulcrum shaft, S
is a bullet.

Claims (1)

[Scope of utility model registration request] In a combine harvester, etc., in which a shutter is suspended below the grain outlet of a grain tank, and the grain outlet can be opened and closed by a shutter, paddy is removed through a fulcrum shaft provided concentrically with the shutter and the shutter. The shutter is rotatably supported toward the bag removal side, and the shutter is always biased in the closing direction via a bullet, and when the shutter is opened and the shutter is rotated toward the paddy removal side, the shutter is rotated by the bullet. Connect the shutter to the shutter so that it will automatically close depending on the machine,
An operating lever is provided to operate the shutter to the open side, and the fulcrum shaft of the operating lever is located on the opposite side of the lever grip across the shutter fulcrum shaft. A grain discharging device for a combine harvester, etc., characterized in that the operating lever is connected on the opposite side of the fulcrum shaft.