JP3426951B2 - Combine weeding equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine weeding device, and more particularly, a harvesting unit is connected to the front of a self-propelled machine equipped with a threshing device, and the planted grain culm is separated from the harvesting unit. A weeding tool, a raising device that causes a sown planted culm to be sown, a cutting device that cuts the sown planted culm at the base of the plant, and a slicing device that cuts the cut culm. The grain culm transporting device and the uncut field side weeding rod that extends from the weeding tool on the uncut field side to the traveling device of the self-propelled machine are integrated within the setting range in the left-right direction with respect to the self-propelled machine. Position change operation freely, swinging attitude change operation between the weeding posture in which the uncut land side weeding rod is projected outward to the left and right and the stored posture standing upright along the side surface of the self-propelled aircraft Freely configured and friction-holding the uncut ground side weeding rod in each position in the swing range that extends over the weeding action position and the retracted position That relates min grass apparatus combine the posture holding means is provided.

[0002]

2. Description of the Related Art When the above combine is used, the entire weeding tool, raising device, cutting device, grain culvert conveying device, and uncut ground side weeding rod (hereinafter referred to as a cutting portion) is used as a self-propelled machine. On the other hand, it is positioned so as to project to the uncut area (outer side) and cut around, so that the distance from the planting culm of the traveling device is sufficient and the mud cover and fall of the planting culm are suppressed. On the other hand, by arranging the mowing portion on the inner side with respect to the self-propelled machine body and performing the dividing work, the dividing work can be favorably performed.

In such a combine, in the past, when the reaping portion was positioned outside and the ridge cutting was performed, the uncut ground side weeding rod was positioned in the storage posture.

[0004]

However, according to the above-mentioned conventional technique, when the ridge is low, it is easy to avoid contact with the ridge of the uncut ground side weeding rod, but when the ridge is high, When the uncut land side sward bar came into contact with the ridge and the ridge was made of concrete, there was a risk that the sward bar would be damaged.

An object of the present invention is to make it possible to avoid contact of the uncut ground side weeding rod with the ridge at the time of ridge cutting with the reaping portion positioned outside.

[0006]

The features, functions and effects of the first invention according to claim 1 are as follows.

[0007] the front of the self-propelled vehicle body equipped with [Characteristics] threshing apparatus, and minutes grass tool for dividing grass planting standing culms, and to cause causing partial grass has been planted culms device, caused A cutting device for cutting the planted culm at the base of the plant, a grain culm conveying device for conveying the cut slaughtered grain culm to the threshing device, and a traveling device for the self-propelled machine from the grass cutting tool on the uncut ground side. Assembled with the undivided side weeding rod that extends up to
Reaper connecting the, the reaper and position changes operably configured within the set range in the horizontal direction with respect to self-propelled vehicle body to the left and right outwardly flared min grass effect the non-cutting point side partial grass rod The swaying posture can be freely changed between the posture and the retracted posture standing upright along the side of the self-propelled aircraft, and the uncut field side sward rod can be adjusted to each posture within the swing range that extends over the weeding action posture and the retracted posture. In a combine provided with a posture maintaining means for frictionally retaining, the range in which the swinging posture of the uncut land side weeding rod can be changed is
The outer edge in the direction of the
With the weeding action position, the inner end in the left-right direction is
A self-propelled machine in a state in which the position of the reaper is changed to the uncut side.
Located on the uncut side of the uncut side of the body and in front
Self-propelled aircraft in a state in which the position of the reaping unit is changed to the side of the already cut ground
For, enter the end of the uncut area to the end of the already cut area
If it is set beyond the storage posture position,
In both of them, as the posture maintaining means, a non-cutting-side weeder that swings beyond the storage posture to provide a friction holding force that is weaker than the friction-holding force applied to the non-cutting-side weeding rod located in the swing range. The point is that means are provided for the rod.

[Operation] According to the first aspect of the present invention, as an uncut ground side weeding rod, it is swingable to the self-propelled machine side beyond the storage posture in a state in which the cutting portion is changed to the uncut ground side. Since there is a special thing, when the reaping part is located outside and the ridge cutting is performed, by swinging the uncut ground side weeding rod to the self-propelled aircraft side beyond the storage posture. It is possible to avoid the contact of the uncut land weeding rod with the ridge by separating the uncut land weeding rod from the ridge.

When the uncut grass side weeding rod is in the swinging position in the swinging range, the friction holding force is sufficient to maintain its posture against the reaction force from the planted grain culm. In such a case, in such a case, when the cutting part is located on the outside and the uncut ground side weeding rod is in a position beyond the storage position, the cutting part is positioned on the inside. If changed, the uncut ground side weeding rod may collide with the side surface of the self-propelled aircraft such as the side wall of the threshing device, which may cause damage to the uncut soil side weeding rod and the self-propelled aircraft.

Focusing on the above points, in the posture swinging to the self-propelled aircraft side from the retracted posture, the friction holding force for holding the posture is weakened, so that the uncut ground side grass rod is Forgetting that it swings to the side of the self-propelled aircraft rather than the retracted posture, when accidentally colliding the uncut land side weeding rod with the side of the self-propelled aircraft,
With the collision, the uncut ground side weeding rod swings to the storage posture side, and the impact at the time of the collision can be mitigated.

[Effect] Therefore, according to the first aspect of the present invention, it is possible to prevent damage to the uncut land side weeding rod due to contact with the ridge, and for that reason, the uncut landside weeding rod is self-propelled. It has become possible to provide a combine weeding device that can avoid damage caused by collision with the.

Features and functions of the second invention according to claim 2
The effects are as follows.

[Characteristics] In the characteristics of the first invention,
In the posture holding means, a spring that elastically presses the uncut ground side weeding rod against the friction plate is provided, and a cam that changes the pressing force of the spring according to the swinging posture of the uncut ground side weeding rod The point is that a mechanism is provided.

[Operation] In the case of the second aspect of the invention, the cam mechanism is provided to automatically change the pressing force of the spring, which is the source of the friction holding force, according to the swinging posture of the uncut ground side weeding rod. Therefore, the friction holding force can be surely changed to the one according to the swinging posture of the uncut ground side weeding rod.

[Effect] Therefore, according to the second aspect of the present invention, at the time of work with the uncut land side weeding rod located in the swing range,
Although the uncut land side weeding rod is securely held in that position and good weeding is performed, the uncut place side weeding rod and self You can now avoid damage to the aircraft as much as possible.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION As shown in FIGS. 1, 2, 5, and 6, a combine is equipped with a pair of left and right traveling devices 1 of a crawler type, and is equipped with a threshing device 2 and a boarding operation unit 3. A reaping section 5 is connected to the front part of the self-propelled machine body 4 so as to be swingable and vertically operable and position changeable within a horizontal setting range.

The reaping unit 5 has a plurality of weeding tools 6 which are juxtaposed in the left-right direction to weed planted culms, and a pair of left and right weeds which are juxtaposed in the left-right direction to cause cultivated planted culms. A raising device 7, a clipper-type cutting device 8 that cuts the planted grain culm that has been caused at the base of the plant, a grain culm transporting device 9 that conveys the cut culm grain to the threshing device 2, and An uncut ground side weeding rod 10 extending from the cutting material side weeding tool 6 to the traveling device 1
And are attached to the mowing frame 11 which is attached to the self-propelled machine body 4 so as to be capable of swinging up and down around the axis P in the left-right direction and being positionally changeable in the left-right direction.

As shown in FIG. 3, the raising and lowering means for raising and lowering the mowing frame 11 is capable of swinging up and down around the horizontal axis Q in a state where the mowing frame 11 is slidably mounted in the left and right directions. A swing frame 12 for vertically swinging the mowing frame 11 around the axis P in the left-right direction is attached to the self-propelled machine body 4, and an elevating cylinder 13 utilizing a hydraulic cylinder for vertically swinging the swing frame 12 is provided. It is configured.

As shown in FIG. 4, the changing means for changing the position of the mowing frame 11 in the left and right direction is, as shown in FIG. 4, a screw feed mechanism for changing the position of the mowing frame 11 to the left and right with respect to the self-propelled machine body 4 and the swing frame 12. 14 is provided, and an electric motor 15 that drives the screw feeding mechanism 14 is provided.

As shown in FIGS. 1, 2, 5, and 6, the uncut ground side weeding rod 10 is capable of swaying around a rearward tilting axis p at the front end portion and the front-rear intermediate portion. Frame 1
As shown in FIG. 6, when it is attached to No. 1 and the position is changed to the uncut land side (outside), its swinging causes
Posture action postures that bulge outward in the left and right directions, a storage posture that stands up along the side surface of the self-propelled aircraft 4, and a ridge posture that is close to the self-propelled aircraft 4 side beyond the storage posture. It is configured to be changed, and as shown in FIG.
In the state in which the position is changed to the inward side, by swinging, the posture changing operation is performed to the weeding action posture protruding outward in the left and right directions and the retracted posture in a state of standing up along the side surface of the self-propelled machine body 4. Is configured.

Then, as shown in FIGS. 7 and 8, the combine frictionally holds the uncut land side weeding rod 10 in each swinging posture in the entire swinging range including the weeding action posture and the ridge posture. The posture holding means and the stopper 16 which can be operated to switch between a blocking posture for preventing the swinging of the uncut-side side weeding rod 10 toward the ridge posture beyond the storing posture and a releasing posture for canceling the blocking. It has and.

The posture holding means uses the friction holding force applied to the uncut land side weeding rod 10 swinging in the main swinging range A extending over the weeding action posture and the storage posture out of the entire swinging range. Is a means for imparting a weak friction holding force to the uncut ground side weeding rod 10 which is rocked in the auxiliary rocking range B on the side of the ridge position more than the retracted position. Specifically, FIG. As shown in FIG. 8, an attachment portion 10a in the front and rear of the uncut land side weeding rod 10
A spring 18 that elastically presses against the friction plate 17 is provided, and a cam mechanism 19 that changes the pressing force of the spring 18 according to the swinging posture of the uncut ground side weeding rod 10 is provided. The friction holding force applied to the uncut land side weeding rod 10 located in the main swing range A resists the uncut landside weeding rod 10 against the reaction force received from the planted grain culms at the time of weeding. The force that is sufficient to maintain the posture, and the weak friction holding force that is applied to the uncut ground side weeding rod 10 located in the auxiliary swing range B is self-propelled as the position of the cutting unit 5 is changed to the inner side. When the vehicle collides with the side surface of the machine body 4, the force is such that it can swing backward with the collision. The friction plate 17 also serves as a support plate for swingably supporting the mounting portion 10a via a support shaft 20 using a bolt. The spring 18 includes a friction plate 17
A guide pin 22 using a bolt, which guides the swing of the uncut ground side weeding rod 10 by being inserted into the arcuate elongated hole 21 formed around the rearward falling axis p formed in 1, is installed as a spring guide. The cam mechanism 19 includes a step portion 2 on the friction plate 17.
3 to form a large pulling force cam surface 19a and a small pulling force cam surface 19b.
9a and a cam surface 19b having a small pulling force, a mounting portion 10a is provided as a cam follower 19A sliding between the head of the bolt and the friction plate 17, and the uncut ground side weeding rod 10 is in the main swing range A. When the cam follower 19A is in the swinging position, the guide pin 2 is contacted with the cam surface 19a having a large pulling force.
By increasing the amount of pulling of No. 2 and greatly compressing and deforming the spring 18, the applied friction holding force is strengthened,
When the uncut land side weeding rod 10 is swung in the auxiliary swing range B on the side of the ridge, the cam follower 19A is brought into contact with the small pulling force cam surface 19b to reduce the pulling amount with respect to the guide pin 22. By reducing the amount of compressive deformation of the spring 18, the applied friction holding force is weakened.

The stopper 16 switches between a blocking posture (see FIG. 7 (a)) and a releasing posture (see FIG. 7 (b)) by swinging, and the blocking posture is provided via the spiral spring 24. It is urged to swing. Then, in the blocking posture, the non-cutting-ground-side weeding rod 10 is brought into contact with the uncut-weeding-side weeding rod 10 in the retracted posture in a direction orthogonal to the swinging-out direction of the uncut-ground-side weeding rod 10 toward the ridge posture side, and the blocking posture Is lifted a little and is rocked, and is pushed by the uncut land side weeding rod 10 that swings to the stored posture side to switch to the release posture, that is, to the stowed posture side of the uncut land side weeding rod 10. Is allowed to swing.

According to the above configuration, as shown in FIG.
The mowing unit 5 is located on the outer side, and the swinging posture of the uncut ground side weeding rod 10 is adjusted within the main swinging range A according to the lodging situation of the planted grain culm, and the swivel cutting is performed. As shown in FIGS. 2 and 5, the reaping unit 5 is located inward, and the swaying posture of the uncut ground side weeding rod 10 is set within the main swaying range A so that the planted culm falls down. According to the above, the middle cutting work is performed, the reaping unit 5 is positioned on the outer side, and the uncut ground side weeding rod 10 is swung to the ridge position for ridge cutting. By providing the stopper 16 which is rockingly biased in the blocking posture, when the uncut ground side weeding rod 10 is rocked to the edge position, it is necessary to switch the stopper 16 to the releasing posture. Therefore, it is easy for the operator to be aware that the uncut land side weeding rod 10 is in the ridge position, and thus the uncut landside weeding rod 10 is By changing the position of the mowing unit 5 inward without switching to the storage posture or the weeding action posture, the uncut ground side weeding rod 10 collides with the side surface of the self-propelled vehicle body 4 such as the side wall of the threshing device 2. It is easy to avoid such a situation, and moreover, it is easy to prevent the uncut ground side weeding rod 10 from being erroneously swung to the ridge position while the reaping unit 5 is positioned inward. Moreover, even when the position of the cutting section 5 is changed to the inner side in a state where the uncut ground side weeding rod 10 is in the edge position, the uncut groundside weeding rod 10 has the main swing range A. Since the friction holding force for holding the uncut ground side weeding rod 10 in the ridge position is weaker than the friction holding force when it is rocked to the main rocking range A In the above, the uncut land side weeding rod 10 is surely held while maintaining good posture against the reaction force from the planted grain culm.
As the uncut land side weeding rod 10 retreats and swings in response to the collision, the uncut landside weeding rod 10 and the self-propelled vehicle body 4 can be restrained from being damaged as much as possible. it can.

[Other Embodiment] In the above embodiment, the friction holding force is automatically changed according to the swinging posture of the uncut land side weeding rod 10, but the friction holding force is adjusted manually. You may carry out like this.

In the above-described embodiment, the entire reaping section 5 is configured so that the position of the reaping section 5 can be freely changed in the left-right direction, but the reaping frame can be moved up and down with respect to the self-propelled machine body 4 and the elevating frame. It is divided into a slide frame that can be operated to change the position in the left-right direction, and the weeding tool 6, the raising device 7, the cutting device 8, the grain culvert transporting device 9, and the uncut land side weeding rod 10 are attached to the slide frame. It is also possible to mount them and configure them so that they can be integrally positionally changed in the left-right direction by sliding the slide frame.

[Brief description of drawings]

FIG. 1 Side view of combine

FIG. 2 is a plan view of the combine with the reaper being changed in position.

FIG. 3 is a side view of the raising and lowering means of the reaper.

FIG. 4 is a plan view of the position changing means of the mowing unit.

FIG. 5 is a schematic front view of the combine in a state in which the position of the reaper is changed to the inside.

FIG. 6 is a schematic front view of the combine in a state in which the reaper is relocated to the outside.

FIG. 7 is a front view showing a posture change of an uncut land side weeding rod.

FIG. 8 is a cutaway plan view of the posture fixing means of the uncut ground side weeding rod.

[Explanation of symbols]

1 traveling device 2 Threshing equipment 4 self-propelled aircraft 5 reaper 6 minute herbs 7 Raising device 8 cutting device 9 grain culm carrier 10 Uncut land side branch rod 17 Friction plate 18 spring 19 Cam mechanism

Claims (2)

(57) [Claims] 1. A front part of a self-propelled aircraft equipped with a threshing device ,
And minutes grass tool for dividing grass planting standing culms, and to cause causing partial grass has been planted culms device, a cutting device for cutting the triggered planted culms in Kabumoto portion, cutting is cut A grain culm transporting device for transporting grain culms to the threshing device, and a reaping unit that is assembled with an uncut ground side weeding rod extending from the weeding tool on the uncut land side to the traveling device of the self-propelled machine , the reaper within the setting range in the lateral direction with respect to the self-propelled vehicle body
Position and location change operably configured, freely the upright stored position and the swinging posture change operation in a state along the non-cutting point side partial grass rod to the side of the minute grass action posture overhanging horizontally outward self airframe In the combine provided with the posture holding means for frictionally holding the uncut ground-side weeding rod in each posture in a swing range extending over the weeding action posture and the retracted posture , The range in which the swing posture can be changed is set to the left.
The outer edge in the right direction is before the overhanging side.
Inscribed grass action posture position, inward end in the left-right direction
Means that the position of the reaper is changed to the uncut area.
It is located closer to the uncut area than the uncut area end of the aircraft,
Self-propelled with the reaping section changed to the already cut ground side
For the aircraft, from the end of the uncut area to the side of the already cut area
Set it so that it goes inside the storage posture position.
In addition, as the posture holding means, a friction holding force weaker than a friction holding force applied to the uncut ground side division rod located in the swing range is shaken beyond the storage posture to the uncut ground side portion. A combine weeding device provided with means for imparting to the grass rod. 2. The posture holding means comprises a spring for elastically pressing the uncut ground side weeding rod against the friction plate, and pressing by the spring according to the swinging posture of the uncut ground side weeding rod. The combine weeding device according to claim 1, further comprising a cam mechanism for changing the force.