KR20150004650U

KR20150004650U - Cross shaped grass eliminator blade

Info

Publication number: KR20150004650U
Application number: KR2020140006820U
Authority: KR
Inventors: 이상군
Original assignee: 이상군
Priority date: 2014-06-19
Filing date: 2014-09-18
Publication date: 2015-12-30

Abstract

The present invention relates to an improvement in a mowing machine blade using a single blade, a cross-shaped structure using a plurality of mowing machine blades, and joining the upper blade and the lower blade by welding to cause a weed- In addition, it is possible to increase the stability of the mowing worker by reducing the phenomenon in which the blade is skipped and the blade is stuck on the ground, and it is possible to expect a cutting effect twice in one rotation, thereby prolonging the life of the blade, Which can reduce the fuel loss of the cross-shaped blade.
Particularly, the grass cutter blade having a cross shape according to the present invention comprises an upper blade having a blade formed on one side surface and another side surface, and a blade formed on a lower side of the upper blade at a predetermined angle, And includes a lower blade.

Description

{Cross shaped grass eliminator blade}

The present invention relates to a mowing machine blade having a cross shape, more particularly, to cross a plurality of mower blade blades in a cross shape, and then joining the upper blade and the lower blade by welding to prolong the life of the blade, And a knife blade having a cross shape to improve the safety of a mowing worker by reducing the phenomenon of knocking of the blade and the phenomenon that the blade is stuck on the ground.

Weeds are prone to all kinds of insects and pests, so we need to cut them several times a year. Since these tasks require hard work, various machines have been proposed and used so far.

Generally, weeds growing in rice paddies between rice paddies tend to become insects, so they should be sown several times a year. In addition, the weeds continue to grow in various places such as rice fields and oxygen, and the weeding of these weeds is usually a very difficult task, and thus various automatic weed cutters have been proposed and used so far.

Recently, these weeds have been mowed by a machine. According to the herbicide method, mechanical weeding is simple, such as lawn knife, grass scratching sickle, etc., In addition, in the case of manpower, top, universal hoe lake is used for chiken weeding, and cultivator and rotary hoof are used when we use axial force and power.

There are various types of pawls in the cultivator that are suitable for the size and type of weed to be removed and should be fitted accordingly. In the case of weeding by battles or inverted games (causing the soil to turn over), an excavator such as a cultivator or a general cultivator is used. There is a hand cart to pull out the grass by hand, and there are Nonghyun Chungyeong Mowing Machine and Batting Machine for axial power and power use. In the apparatus for spraying herbicides, a sprayer having a structure for spraying the chemical liquid from the nozzle by pressurization was used, and a spraying machine using blowing or centrifugal force was used for the spraying.

As for the conventional lawn mowers, when the outer blade using only one blade is used in the process of cutting the weeds while the blade is rotating, the weeds are squeezed by the rotation of 180 ° in the traveling direction of cutting the weeds. Therefore, There was a problem in the safety of the worker.

In addition, there was a problem in the use of removing the weeds that were wrapped around the rods after using the lawn mowers, and when the lawn mowers were tangled excessively on the lawn mowers, some parts of the lawn mowers were damaged and unnecessary cost was incurred by replacing the damaged parts And the blade portion of the lawn mower is coupled to the gear portion to form a micro space, so that when various foreign substances are introduced into the micro space, there is a problem that the lawn mower fails.

Korean Utility Model Publication No. 20-2011-0005483 "Mowing blade" (public date: 2011.06.01.)

The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a method and apparatus for constructing a cross shape by using a plurality of lawn mowers to prevent a weed from being wound around lawn mowing during lawn mowing operation, The purpose of the present invention is to reduce the phenomenon of stagnation, thereby enhancing the stability of the operator, and prolonging the life of the blade, thereby reducing the fuel loss of the mower.

In a mowing machine blade installed on a mower for cutting weeds,

An upper blade having a blade formed at one side and the other side and a lower blade provided at a predetermined angle below the upper blade and having a blade formed on one side and the other side.

At this time, the angle between the central axis of the upper blade and the central axis of the lower blade may be 90 °.

At this time, the joint portion where the upper blade and the lower blade abut can be welded.

At this time, an adhesive is applied to the adhesive portion of the lower blade, and the upper blade is bonded to the adhesive portion of the lower blade.

At this time, the upper blade and the lower blade have coupling grooves for passing the bolts, and the bolts and the nuts are fastened to each other so that the upper blade and the lower blade can be coupled.

At this time, the upper blade and the lower blade may each have a blade formed on one side of the rotation center with respect to the rotation center.

At this time, each of the upper blade and the lower blade is formed with a through-hole through which a bolt coupled to a rotating rod of the grass cutter main body passes, and the inner diameter of the through-hole of the upper blade may be larger than the inner diameter of the through-

At this time, the inner diameter of the through-hole of the upper blade may be larger than the outer diameter of the gear portion of the lawn mower body.

At this time, a part of the gear portion can be inserted into the through groove of the upper blade.

The grass cutter knife having a cross shape according to the present invention having the above-described structure is laid by 180 ° rotation in the traveling direction in which weeds are mowed when using the outer cutter using one blade, whereas the grass cutter knife having a cross shape Since the weeds are matured by 90 ° rotation, the mowing impact is reduced, so that the mowing of the mowing blade and the phenomenon that the knife is stuck on the ground are reduced, thereby improving the stability of the operator. The mowed weeds are separated by the thickness of the upper blade and the lower blade It is possible to reduce the weed retraction phenomenon and prolong the life of the blade of the mowing machine because the cutting effect can be expected twice as much as that of the conventional one at the time of one rotation, thereby reducing the fuel loss of the mowers.

In addition, when the blade is formed on one side surface and the other side surface, and the blade is worn due to a long time mowing operation in the rotating direction of the blade portion formed on one side, the blade life can be expected to be prolonged by using the blade upside down.

In addition, the through grooves formed in the upper blade have a diameter larger than that of the gear portion, and the gear portion is inserted into the through groove of the upper blade so that the blade portion and the gear portion do not form a minute space, It has an effect of preventing the occurrence of failure.

1 is a view for explaining a grass cutter blade having a cross shape according to the present invention.
2 is a view showing a state in which a grass cutter blade having a cross shape according to an embodiment of the present invention is welded and joined.
3 and 4 are views showing the installation state of a grass cutter blade having a cross shape according to another embodiment of the present invention.
5 is a view showing a state in which a conventional grass cutter blade is engaged with a gear portion.
6 and 7 are views for explaining a grass cutter blade having a cross shape according to another embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, in order to explain the technical idea of the present invention easily to a person skilled in the art . First, in adding reference numerals to the constituents of the drawings, it is to be noted that the same constituents are denoted by the same reference symbols as possible even if they are displayed on different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

Hereinafter, a grass cutter blade having a cross shape according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view for explaining a grass cutter blade having a cross shape according to the present invention.

Referring to FIG. 1, a grass cutter blade 10 having a cross shape according to the present invention includes an upper blade 30 and a lower blade 50. The upper blade 30 rotates about a rotation center The blade portion 31 is formed on one side surface of the blade.

A lower blade 50 is installed at a predetermined angle below the upper blade 30. The lower blade 50 also has a blade 51 formed on one side of the rotation center with respect to the rotation center. The predetermined angle formed by the upper blade 30 and the lower blade 50 is an angle formed by the central axis X of the upper blade 30 and the central axis Y of the lower blade 60, 90 [deg.].

FIG. 2 is a view illustrating a state in which a grass cutter blade having a cross shape according to an embodiment of the present invention is welded and joined together. FIG. 2 is a cross- The overall installation relationship of the grass cutter blade will be described in more detail as follows.

2, an upper blade 30 and a lower blade 50 of a mower blade 10 having a cross shape according to an embodiment of the present invention are formed into a cross shape by welding at a joint portion (a) The grass cutter blade 10 may be formed. However, the joining portion (a) of the upper blade 30 and the lower blade 50 can be joined by means other than welding.

3 and 4 are views showing the installation state of a grass cutter blade having a cross shape according to another embodiment of the present invention.

Referring to FIG. 3, the lower blade 50 of the grass cutter blade 10 having a cross shape according to the present invention is formed with an adhesion portion b for adhesion with the upper blade 30, ) May be applied with an adhesive such as a metal adhesive. However, the adhesive means to be applied to the adhesive portion (b) is not necessarily limited to a metal adhesive, but can also be applied with other adhesive means.

The upper blade 30 and the lower blade 50 of the mower blade 10 having a cross shape according to the present invention are formed with coupling grooves 90. The upper blade 30 and the lower blade 50 And then the bolts 70 are inserted into the coupling grooves 90. When the bolts 70 pass through the coupling grooves 90, the upper blades 30 And the lower blade 50 are firmly fixed to each other. However, the member passing through the engagement groove 90 is not necessarily limited to the bolts 70 and the nuts 110, but may also be used with rivets or other means.

6 and 7 are views for explaining a grass cutter blade having a cross shape according to another embodiment of the present invention.

6 and 7, a grass cutter blade 10 having a cruciform shape according to the present invention. Each of the upper and lower dml blades 30 and 50 of the dml is connected to a bolt 130 The inner diameter of the through groove 150a of the upper blade 30 may be larger than the inner diameter of the through groove 150b of the lower blade 50 . The inner diameter of the through groove 150a of the upper blade 30 may be larger than the outer diameter of the gear portion 170 of the lawn mower body. Accordingly, a part of the gear portion 170 can be inserted into the through groove 150a of the upper blade 30. [

5, when the bolt 210 passes through the blade 230 and is engaged with the rotation bar 290 of the gear portion 270, the bolt 210 and the blade 230 A fine gap G is formed between the gaps G so that a worker breaks down the mowers due to the insertion of wires, yarns, grasses or other foreign matter during the mowing operation.

However, since the gear portion 170 of the cross-shaped grass cutter blade 10 according to the present invention shown in FIG. 7 is inserted into the through groove 150a formed in the upper blade 30, The gap G between the gear portions 170 can be removed to solve the above-described problems of the related art.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is understood that modifications may be made.

10: cross-shaped mowing blade 30: upper blade
50: lower blade 70, 130: bolt
90: fastening groove 110: nut
150a, 150b: through groove 170: gear part
190:

Claims

In a mowing machine blade installed on a mower for cutting weeds,
An upper blade having a blade formed on one side surface and the other side surface; And
And a lower blade provided at a predetermined angle below the upper blade and having a blade formed on one side surface and the other side surface.

The method according to claim 1,
Wherein an angle between a central axis of the upper blade and a central axis of the lower blade is 90 °.

The method of claim 2,
Wherein the upper blade and the lower blade are joined to each other by welding.

The method of claim 2,
Wherein an adhesive is applied to an adhesive portion of the lower blade, and the upper blade is bonded to an adhesive portion of the lower blade.

The method of claim 2,
Wherein the upper blade and the lower blade have coupling grooves through which the bolts pass, and the bolts and the nuts are fastened to each other so that the upper blade and the lower blade are engaged with each other.

The method according to claim 1,
Wherein the upper blade and the lower blade each have a blade portion formed on one side of the rotation advancing direction with respect to the rotation center.

7. The method according to any one of claims 1 to 6,
Wherein each of the upper blade and the lower blade has a through hole formed at a center thereof through which a bolt is coupled, the inner diameter of the through groove of the upper blade being larger than the inner diameter of the through hole of the lower blade, A blade of grass cutter with a cross shape.

The method of claim 7,
Wherein the inner diameter of the through-hole of the upper blade is larger than the outer diameter of the gear portion of the lawnmower main body.

The method of claim 8,
And a portion of the gear portion is inserted into the through-hole of the upper blade.