KR101663973B1 - Unmanned weeder to improve safety - Google Patents

Abstract

The present invention relates to an unmanned lawn mower having improved safety, and more particularly, to a novel concept of preventing weeds from colliding with each other so as to prevent a safety accident during weeding,
The herbicide disclosed in the prior art has a problem that the herbicide superimposed by the upper and lower collides with each other to cause safety accidents and breakage of the herbicide blades frequently and the grass herbicide by the herbicide can not be smoothly discharged sideways, Which causes the problem of being accumulated.
In order to solve such a problem, the present invention provides a method of weeding a weed control apparatus in which a plurality of adjacent herbicide blades are successively weighed in a state in which a weaving machine body, which is horizontally rotatable, The present invention is characterized in that a technique for preventing collision between herbicide blades while exhibiting an effect of forming an overlap between the turning radii of the herbicide blades is proposed.

Description

[0001] Unmanned weeder to improve safety [0002]

The present invention relates to a novel concept of preventing weeds from colliding with each other so as to prevent a safety accident during weeding, but also to improve the herbicidal performance by eliminating the dead zone of weeding.

Generally, a mowing device is a device for cutting crops (such as grains, grasses, grasses, etc.). Various kinds of mowing devices have been proposed and widely used according to the use purpose and the form.

In the past, as a means of cutting grass, we used to work with a sickle, called a sickle, to work, so it took a lot of work, it takes too long to work, the work efficiency is low, , Or frequent human accidents such as fingers being cut off.

Then, as the science developed, the mechanization of the agricultural machinery was realized. Typically, a working machine type lawn mower attached to an agricultural machine called a cultivator or a manager was developed and used.

However, as a result of having a lot of power and complicated structure in adhering lawn mowers to cultivators or managers, the utility value has been reduced and the use has been avoided, so that a riding type weeding apparatus equipped with an engine capable of specializing in weeding has been developed .

Due to the aggravation of the aging of the labor force that can naturally farm in the rural areas and the aging of the rural population is getting worse as the day progresses, It is true.

As mentioned above, the mechanization of agriculture is further accelerated in accordance with the aging trend of the rural population, and the farming method is also being developed, and the farming method is being transformed from the past culinary form farming to the large-scale farming. Recently, there has been developed a riding type grass mower that can carry out a weeding operation while a person is riding and driving, and it has a lot of grass in a short time It was possible to cut.

As prior art relating to such a mower, there is disclosed a patent registration No. 1066663 entitled " Name / Lawn Mower ", which is a registered invention of the applicant of the present invention.

The prior art provides an effect of eliminating the dead space of the herbicide by eliminating the left and right gaps between the herbicides by overlapping the turning radius of the herbicide with other adjacent herbicides.

However, in the above-mentioned prior art, herbicide superimposed on each other collide with each other to cause safety accidents, breakage of the herbicide is frequent, and the herbicide grass is not smoothly discharged sideways, Which causes the problem of being accumulated.

In addition, since the herbicide can not be tilted according to the slope of the ground because the herbicide is integrally fixed to the front of the traveling device, the herbicide is not uniform even if the slope is low, Which causes a problem of breakage while digging.

In addition, since it is impossible to raise or lower the lawn mower, the lawn mower can not rise when the lawnmower collides with the obstacle during the weeding operation, so that the durability of the lawn mower deteriorates and the lawn mower can be removed After that, it is not possible to attach or detach other working machines (such as road surface cleaners, home cleaning machines, snow throwers, etc.), and the utilization of equipment is deteriorating.

In order to solve the above-described problems, the present invention provides a method of weeding a plurality of herbicide by sequentially weeding a herbicide body, which is horizontally rotatable, The invention relates to a technique for preventing the collision between weed blades while exhibiting an effect that the turning radii of the weed blades mutually overlap.

Further, the present invention provides a technique for automatically tilting a grassing machine main body coupled to a mounting frame so as to be rotatable in accordance with a slope of the ground.

Further, according to the present invention, a pair of lift frames attached to both sides of the mounting frame are vertically rotated using a lifting cylinder so that the main body of the lawn mower can be selectively raised and lowered, and the lawn mower body is mounted on the mounting frame, And to make it possible to install the technology.

Further, the present invention provides a technique for allowing a grass mower body to automatically descend to its original position by its own weight when the grass mower body or the grass mower collides with an obstacle during the weeding operation.

According to the present invention, the grass mower body positioned orthogonally to the running direction is rotated so as to be inclined to one side by using the inclination adjusting cylinder during the weeding operation, so that the adjacent plurality of weeding heads are sequentially separated from each other, The turning radius of each other is overlapped to solve the blind spot of the weeding operation, thereby remarkably improving the work quality, preventing the collision between the weed blades, preventing the occurrence of safety accidents, and preventing the breakage of the weed blades to provide.

In addition, since the plurality of herbicide blades are inclined to one side, the grass is smoothly guided to the side, thereby providing the effect of preventing the grass from being scattered or scattered on the grassbath main body.

In addition, since the weed main body is automatically tilted while rotating according to the slope of the ground, the weed main body always maintains a uniform gap between the weed cutting edge and the ground surface, And it is possible to prevent the phenomenon that the herbicide plows on the ground, thereby preventing the degradation of the life due to the breakage.

Further, according to the present invention, the mowing machine body is selectively raised and lowered according to the operation of the lifting cylinder, thereby elevating the mowing machine main body during normal driving to improve the original activity of the mowing, And the utilization of the equipment is improved by using another machine mounted on the mounting frame after removing the mower main body from the mounting frame.

Further, according to the present invention, when the grass mower body or the grass mowing head collides with the obstacle during the weeding operation, the grass mower body is automatically raised and then lowered to its original position by its own weight, thereby preventing breakage of the lawn mower.

1 is a front view of an installation state of an unmanned lawn mower to which the present invention is applied
Fig. 2 is a plan view of an installation state of the unmanned lawn mower of the present invention
Fig. 3 is a plan view of the lawn mower of the present invention
4 is a front view of the lawn mower of the present invention
Fig. 5 is a plan view of a horizontal rotating state of the lawn mower body of the present invention
Fig. 6 is a plan view showing an initial state and an inclined state of the herbicide of the present invention
FIG. 7 is a plan view showing a connection state between a connecting rod holder and a mounting frame according to the present invention.
8 is a front view of the connecting state of the connecting rod holder and the mounting frame according to the present invention.
9 is a sectional front view of the mounting plate and the mounting frame of the present invention
10 is a plan view of the automatic tilting apparatus of the present invention
11 is a front elevational view of the elevator main body of the present invention
FIG. 12 is a front elevation view of the automatic elevating state when an obstacle collides with the lawn mower body of the present invention
FIG. 13 is a plan view showing the moving state of the sliding pin when the obstacle collides with the main body of the lawn mower according to the present invention.

Preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings.

The overall structure according to the preferred embodiment of the present invention will be schematically shown in the accompanying drawings as a component of the linkage holder 20, the main body connecting rod 40, the plurality of weeding knives 50 and the inclination adjusting cylinder 60 It can be confirmed that it is divided.

Hereinafter, the present invention having the above-described schematic configuration will be described in more detail for facilitating the implementation.

The weaving machine (W) of the present invention is connected to the front of the traveling device (2) on which the engine (1) generating the power is mounted, and the weaving operation is performed while smoothly running the workpiece.

To this end, a mounting frame 10 is connected to the front of the traveling device 2, and a connecting rod holder 20 is mounted to the mounting frame 10. The main connecting rod 40 is connected to the connecting rod holder 20 And the main body connecting rod 40 is integrally attached to the rear upper end of the main body 30 so that the main body 30 of the main body 30 can be pivotally connected to the pivot shaft 41 It is possible to pivot left and right around the center.

A plurality of weeding blades 50 are rotatably installed in the inside of the mower main body 30 in accordance with the operation of the motor 51 in a state where they are close to each other.

Therefore, the weed blades 50 are installed so as not to overlap each other and form gaps therebetween, so that the weed blades 50 can be prevented from colliding with each other during the rotation operation.

The slope adjusting cylinder 60 is connected to the upper surface of the link holder 20 and the upper surface of the main body link 40 through the coupling pins 61, The lawn mower main body 30, which is positioned orthogonally to the running direction, can be horizontally rotated in accordance with the linear motion of the tilt adjusting cylinder 60, and can be inclined to one side.

That is, the grass mower body 30 of the present invention is not installed in a fixed state, but can be positionally changed while selectively rotating horizontally.

The herbicide blades 50 of the present invention have an advantage of preventing breakage due to collision between the herbicide blades 50. However, since the herbicidal blades 50 form a gap between the herbicidal blades 50, .

However, according to the present invention, when the lawn mower body 30 is rotated in a state in which the lawn mower body 30 is inclined by using the inclination adjusting cylinder 60 in a state where the lawn mower body 30 is orthogonal to the traveling direction of the traveling device 2 The plurality of herbicide blades 50 are sequentially weeded. In this process, although the herbicide blades 50 are spaced apart from each other, the turning radii of the herbicide blades 50 overlap each other, The quality can be remarkably improved.

In other words, it is possible to prevent the breakage of the herbicide blades 50 and to eliminate the blind spot of the herbicidal works while exhibiting the effect of overlap by changing the position of the herbicidal blades 50.

In addition, since the herbaceous blade 50 of the present invention is sloped to one side, the grass weed by the herbaceous blade 50 is smoothly guided and discharged sideways so that it has a special effect of being prevented from being accumulated in the grass mower body 30 or scattered upward Additional information is provided.

In addition, the mower 30 of the present invention is not limited to being vertically fixed, but may also be equipped with an automatic tilting device 70 that can be automatically tilted while being rotated up and down according to the inclination of the ground. do.

The mounting plate 71 mounted on the front surface of the mounting frame 10 has a coupling protrusion 72a protruding from a rear end of a tilting support shaft 72 at a front center thereof, And a hollow rotary shaft 73 is attached to the rear surface of the rotary shaft holder 20 through a welding operation or the like. The hollow rotary shaft 73 is rotatably fitted on the outer side of the tilting support shaft 72 The upper and lower sides of the return spring 74 are connected to the spring fixing protrusions 74a formed on both sides of the connecting rod holder 20 and the spring fixing holes 74b provided on both sides of the front surface of the mounting frame 10 .

Here, the hollow shaft 73 has a connecting flange 75 integrally attached to the outer side thereof, and the connecting flange 75 is integrally connected to the rear surface of the connecting rod holder 20 through a fastener 76.

The grass mower body 30 automatically tilts while rotating vertically in accordance with the inclination of the ground during the weeding operation, thereby maintaining a uniform gap between the weed blade 50 and the ground at all times, So that it can always be restored to its original state after being tilted by the tilting operation.

Therefore, even if the weeding operation is performed at the inclined section of the ground, the herbicidal condition is uniform so that the work quality is excellent and the herbicide (50) prevents the ground from penetrating, thereby greatly preventing the breakage of the herbicide It provides a special effect that can be done.

Bearing grooves 77a are formed in front of and behind the inner circumferential surface of the hollow rotary shaft 73 so as to prevent frictional resistance with the tilting support shaft 72 during a rotary operation. A bush bearing 77 for preventing frictional resistance with the tilting support shaft 72 is inserted to prevent frictional resistance due to the rotation operation to improve the original operation of the tilting support shaft 72. At the tip of the tilting support shaft 72, 78 are screwed into the fastening holes 78a while being in tight contact with the tip of the hollow rotary shaft 73 to prevent the hollow rotary shaft 73 from being detached from the tilting support shaft 72, .

The mounting plate 71 may be integrally attached to the mounting frame 10 but may be detachably attached to another work machine (such as a road surface cleaner, a house cleaner, a snow removing machine, etc.) after removing the lawn mower W Structure is more preferable.

The mounting plate 71 is integrally mounted on the front surface of the mounting frame 10 through a fastening hole 81. A pair of mounting hooks 80 are attached to both sides of the front surface of the mounting plate 71 And the mounting hook 80 is fixedly inserted into the hook hole 82 formed in the upper surface of the mounting frame 10 to thereby maintain the firm integrity and dismantle the fastening hole 81, The grass mower body 30 is detached from the mounting frame 10 by attaching another working machine to provide a special effect that can be utilized for other purposes such as road surface cleaning and snow removal work.

Further, the present invention is further combined with a technique for preventing a structural strength from being weakened while a traveling resistance force is concentrated on the hollow rotary shaft (73) and the tilting support shaft (72) .

A fixing nut 84 is welded to both sides of the rear side of the connecting rod holder 20 and a damper 85 screwed to the fixing nut 84 passes through the rear side of the connecting rod holder 20 A stopper 86 protrudes from a side surface of the mounting hook 80. The damper 85 contacts the stopper 86 when the lawn mowers W run forward, The strength of the tilting support shaft 72 and the hollow rotation shaft 73 can be improved by dispersing the running resistance concentrated on the hollow rotary shaft 73 on both sides, thereby remarkably improving the durability.

One side of a pair of lift frames 91 for raising and lowering the lawn mower body 30 is attached to both sides of the mounting frame 10 of the present invention and the other side of the lift frame 91 is connected to a traveling device The lift frame 91 is connected to the pair of columns 93 installed on both sides of the main frame 92 installed in the left-right direction in front of the lift frame 91, And the lifting cylinder 90 is connected to the upper part of the column 93 and the upper part of the column 93 so that the lawn mower body 30 can be selectively raised and lowered according to the linear movement of the lifting cylinder 90.

Therefore, when the lawn mower W is generally run without the weeding operation, the lawn mower 30 is moved up and down to prevent the running, and when the lawn mower is operated, the lawn mower 30 is lowered to smoothly carry out the weeding operation .

The mower body 30 can be raised or lowered according to the operation of the lifting cylinder 90. In addition, when the mower 30 or the herbaceous blade 50 collides with the obstacle during the weeding operation, New technologies that can be applied are combined.

A separate connecting bar 90b is integrally attached to the front end of the piston rod 90a and a pin moving slot 90c is formed through the connecting bar 90b The sliding pin 95 penetrates through the pin moving slot 90c and the lift frame 91,

The sliding pin 95 is moved backward along the pin moving slot 90c and the lifting cylinder 90 and the lifting cylinder 90 are moved At the same time, the lawn mower body 30 automatically ascends by rotating upward, and when it passes the obstacle, it descends to its original position due to its own weight, thereby preventing breakage of the lawn mowers W.

At this time, a spring connection bracket 97a is respectively coupled to the coupling pin 96 and the sliding pin 95, which are coupled through the column 93 and one side of the lifting cylinder 90, and the spring connection bracket 97a The buffer spring 97 is integrally connected to both sides of the buffer spring 97 to prevent the buffer spring 97 from being abruptly lowered when the grass main body 30 is lifted due to its own weight, The occurrence of breakage can be suppressed.

W: Mower 1: Engine
2: Travel device 10: Mounting frame
20: connecting rod holder 30: mower body
40: main body connecting rod 50: weed blade
60: inclination adjusting cylinder 61, 94, 96: engaging pin
70: Automatic tilting device 71: Mounting plate
72: tilting support shaft 72a: engaging projection
73: hollow rotary shaft 74: return spring
75: connection flange 76, 81: fastener
77: Bush bearing 78: Release plate
80: mounting hook 82: hook hole
84: Fixing nut 85: Damper
86: Stopper 90: Lifting cylinder
90a: piston rod 90b: connecting bar
90c: pin transfer elongation 91: lift frame
92: main frame 93: column
95: sliding pin 97: buffer spring

Claims (9)

(20) mounted on a mounting frame (10) provided in front of a traveling device (2) on which an engine (1) is mounted;
A main body connecting rod 40 horizontally rotatably connected to the connecting rod holder 20 and integrally attached to the rear upper end of the mower main body 30 on both sides;
A plurality of herbicide blades 50 rotatably installed adjacent to each other in the interior of the mower 30;
A slope adjusting cylinder 60 connected between the linkage holder 20 and the main body connecting rod 40 and horizontally rotating the grass mower main body 30 to position the weeding blade 50 in an inclined state during the weeding operation While;
A mounting plate 71 having a tilting support shaft 72 integrally attached thereto is mounted on the front surface of the mounting frame 10 and a hollow rotary shaft 73 attached through a rear surface of the connection unit holder 20 is mounted on a tilting support The automatic tilting device 70 is rotatably fitted on the outer side of the shaft 72 and has both ends of the return spring 74 connected to both sides of both sides of the connecting rod holder 20 and both sides of the front surface of the mounting frame 10. [ ;
The mounting plate 71 is mounted on the mounting frame 10 through a fastening hole 81 and a mounting hook 80 attached to both sides of the front surface of the mounting plate 71 is connected to the upper surface of the mounting frame 10 And the other machine can be mounted after removing the mower main body 30 from the mounting frame 10 when the mounting plate 71 is detached and attached. Unattended mowers.
The method according to claim 1,
The plurality of herbicide blades (50) are placed in an inclined state during the herbicidal action, and the turning radii of the herbicide blades (50) overlap each other in the course of sequentially weeding the herbicidal blades (50) Wherein the safety is improved.
delete The method according to claim 1,
The hollow rotary shaft 73 is formed with bearing grooves 77a in front of and behind the inner peripheral surface thereof and a bush bearing 77 for preventing frictional resistance with the tilting support shaft 72 is inserted into the bearing groove 77a, And a separation preventing plate 78 is screwed to the leading end of the tilting support shaft 72 so as to be in close contact with the tip of the hollow rotation shaft 73 and prevent the hollow rotation shaft 73 from being separated. Mowers.
delete The method according to claim 1,
A damper 85 is installed on both sides of the rear side of the linkage holder 20 and the damper 85 contacts the stopper 86 protruding from the side surface of the mounting hook 80 when the lawn mower W Wherein the driving resistance force concentrated on the tilting support shaft (72) and the hollow rotary shaft (73) is dispersed on both sides.
(20) mounted on a mounting frame (10) provided in front of a traveling device (2) on which an engine (1) is mounted;
A main body connecting rod 40 horizontally rotatably connected to the connecting rod holder 20 and integrally attached to the rear upper end of the mower main body 30 on both sides;
A plurality of herbicide blades 50 rotatably installed adjacent to each other in the interior of the mower 30;
A slope adjusting cylinder 60 connected between the linkage holder 20 and the main body connecting rod 40 and horizontally rotating the grass mower main body 30 to position the weeding blade 50 in an inclined state during the weeding operation While;
A pair of lift frames 91 are integrally attached to both sides of the mounting frame 10 and the lift frame 91 is mounted on the side of the column 93 installed on both sides of the main frame 92 of the traveling device 2. [ And both sides of a lifting cylinder 90 for selectively lifting and lowering the lawn mower body 30 are connected to the upper portion of the lift frame 91 and the upper portion of the column 93 Unmanned mowers with improved safety.
8. The method of claim 7,
The lifting cylinder 90 is provided with a connecting bar 90b at the tip of the piston rod 90a and a pin moving slot 90c formed in the connecting bar 90b and a sliding pin 95 And the sliding pin 95 moves backward along the pin movement slot 90c when the grass mower body 30 or the weed hair blade 50 collides against an obstacle so that the lifting cylinder 90 is moved upward And the grass mower body (30) is automatically raised.
9. The method of claim 8,
The coupling pin 96 penetrating through the column 93 and the lifting cylinder 90 and the sliding pin 95 are provided with an impact absorbing member for relieving the shock generated when the grass main body 30 raised when the obstacle is collided, The buffer spring 97 is connected to both sides of the unmanned lawn mower.

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