JPS5930369B2 - Reaper planting stem culm weeding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a weed cutting tool that is installed at the front of a pulling device in a reaping machine, such as a combine harvester or a binder, and separates target stem culms from those that do not. The aim is to ensure that the desired weeding action can be carried out smoothly, reliably, and effectively with less chance of unexpected pull-out or breakage, especially for planted stem culms that are heavily lodging and intertwined with each other. At the point.

Conventionally, by moving the pulling device to the front position and moving it into the space between adjacent planted stem culms in the left and right direction as the aircraft advances, it acts on the base of the planted stem culms and lifts both of them. A weeding tool was installed to push the weeds apart from side to side, but in this case, it was for the planted stems and culms that were lying down and intertwined, one above the other.

This weeding tool must bear the burden of weeding all the overlapping stem culms at the same time, and the weeding resistance is very large, resulting in the disadvantage that the planted stem culms are easily pulled out or broken.

The planting stem culm weeding device for a reaper according to the present invention was developed in view of the above points, and its technical feature is that a large number of undulating claws protrude within a vertical plane along the direction of movement of the machine. A vertically rotating forced weeding device is installed above the weeding tool installed at the front of the stem culm pulling device, and the action starting end of the weeding device and the weeding tool is moved back and forth. There are points VC that are vertically aligned at substantially the same position in the direction, and the following effects are achieved.

That is, according to the present invention, of the planted stem culms that are intertwined in an upper and lower state, the part facing the weeding tool is the weeding tool, and the part facing the forced weeding device is the forced parting. When we say that weeds are separated by a weeding device, the weeding of the intertwined planted stem culms is simultaneously divided between the weeding tool and the forced weeding device, and is carried out in upper and lower stages, which reduces the grass load on the weeding tool. It was possible to reduce the weeding resistance significantly.

As a result, even for planted stem culms that are highly lodging and entwined, they can be smoothly handled with very little pull-out or breakage.
It has now been possible to achieve a reliable and good lifting effect.

Hereinafter, embodiments of the present invention will be described based on the drawings. The drawings show a planted culm lifting device provided at a position in front of a reaping device 3 in a combine harvester.

In the figure, 1 engages with the planted shell culm at a position near the ground, inserts it nine times inside the fuselage, and then forcibly pulls up and transports the planted shell culm to the rear. This is a so-called sideways-rotating type lifting device that operates to raise the user to a standing position.
A chain 1C is rotatably suspended in the case 1B, and the chain 1C is placed in a plurality of positions spaced apart in the direction of rotation, such as an engaging posture in which the chain 1C protrudes outwardly and stands up, and a receding position in the case 1B. The lifting claw 1D is pivoted to be able to swing freely between the non-working position and the lifting claw 1D, and the lifting claw 1D is attached to the lifting case 1B when rotating at the front end and when rotating rearward and upward following removal. . . . are provided with a mechanism for regulating and holding them in the engagement position, and this is provided corresponding to the culm ridge to be cut.

2 is a so-called vertical type forced weeding method in which the planted shell culm is weeded by engaging the planted shell culm and turning it upward, and then forcibly pulling up and transporting it rearward and upward. This is a device in which a chain (an example of an endless body) 2B is rotatably hung in a vertical plane along the direction of movement of the aircraft in a lifting case 2C provided in a forward downward tilting position. At each of multiple locations at appropriate intervals in the rotational direction of the chain 2B,
A undulating type 2D is pivotally supported in a direction perpendicular to the chain 2B and can be switched between an engagement posture in which it stands up outside the case 2C and a non-operation posture in which it is retracted and lies down inside the case 2C, and
The case 2C is provided with a mechanism that regulates and holds the undulating type 2D in an engaging posture during rotation at the lower front end and subsequent upward movement toward the rear. ,
This is the front part of the lifting device 1, and is located at a position along the lateral side of the lifting path A where the lifting claw 1D of the lifting device 1 rotates in the engagement posture. , this triggering path A
Allow passage of the planted culm vertically and horizontally between the
with an appropriate gap t, and the lower end of the front end (
In other words, the lifting starting end 2A by turning is positioned higher than the lifting starting end 1A of the pulling device 1 relative to the ground.

4 is. It is located immediately in front of the lifting start end 1A of the lifting device 1, and by moving between the right and left planted shell culms that are adjacent to each other in the direction of the aircraft movement, it lifts them rearward and upward to move them from side to side. It is a tool for separating weeds.

The weeding device 4 is located below the forced weeding device 2, or in other words, the forced weeding device 2 is located above the weeding device 4, and the action starting ends of both 2 and 4 are located in front and behind each other. They are aligned vertically at approximately the same position in the direction.

Reference numeral 5 denotes a case for transmitting and supporting power to the pulling device 1, and 6 is a support case for transmitting power from the raising device 1 to the weeding body 2.

According to the above configuration, among the planted culms that overlap each other with a width in the vertical direction and are intertwined with each other, the upper layer is forcibly pulled up and conveyed rearward and upward by the forced weeding device 2. The grass is divided left and right, while the grass in the lower layer is divided left and right by the weeding tool 4.

In addition, in the case of the two-row mowing type, as shown in Fig. 2, two pulling devices 1.1 are installed side by side with their pulling paths A and A next to each other. In this case, two forced weeding devices 2, 2 are not only installed to separate the two reaped stem culms and the planted stem culms located on the outside of these, but also the Thus, it is desirable to provide a forced weeding device 2 along the boundary between the pulling paths A and A in order to separate the two stalk culms to be cut from each other.

[Brief explanation of the drawing]

The drawings show an embodiment of the planting stem culm weeding device for a reaper according to the present invention, with FIG. 1 being an enlarged side view of the main part, and FIG. 2 being an enlarged front view of the main part. 1... Stem culm pulling device, 2... Forced weeding device, 2B... Endless body, A... Issue 1 raising route, 1A... ...Bow 1 starting end, t...
・Gap, 2D... undulating type.

Claims (1)

[Claims] 1. A vertically rotating forced weeding device 2 that protrudes and rotates a large number of undulating claws 2D in a vertical plane along the direction of movement of the aircraft is installed above the weeding device 4 provided at the front of the stem culm pulling device 1. This is a planting stem culm weeding device for a reaper, which is provided in a reaper and allows the action start ends of the forced weeding device 2 and the weeding tool 4 to be vertically aligned at approximately the same position in the front-back direction.