KR20130035636A - Grass eliminator with wire cutter - Google Patents

Grass eliminator with wire cutter Download PDF

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Publication number
KR20130035636A
KR20130035636A KR1020110100060A KR20110100060A KR20130035636A KR 20130035636 A KR20130035636 A KR 20130035636A KR 1020110100060 A KR1020110100060 A KR 1020110100060A KR 20110100060 A KR20110100060 A KR 20110100060A KR 20130035636 A KR20130035636 A KR 20130035636A
Authority
KR
South Korea
Prior art keywords
cover
wire
extending
auxiliary housing
plate
Prior art date
Application number
KR1020110100060A
Other languages
Korean (ko)
Inventor
양동을
Original Assignee
양동을
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 양동을 filed Critical 양동을
Priority to KR1020110100060A priority Critical patent/KR20130035636A/en
Publication of KR20130035636A publication Critical patent/KR20130035636A/en

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/416—Flexible line cutters
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/73—Cutting apparatus
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B39/00—Other machines specially adapted for working soil on which crops are growing
    • A01B39/12—Other machines specially adapted for working soil on which crops are growing for special purposes, e.g. for special culture
    • A01B39/18—Other machines specially adapted for working soil on which crops are growing for special purposes, e.g. for special culture for weeding
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/81—Casings; Housings
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D69/00—Driving mechanisms or parts thereof for harvesters or mowers
    • A01D69/08—Clutches
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D75/00—Accessories for harvesters or mowers

Abstract

The present invention relates to a mower having a blade formed of a metal wire.
The lawn mower according to the present invention is fixed to the drive shaft of the drive unit installed at the end of the workbench and rotates together with the drive shaft, fixed to the rotation unit rotates with the rotary unit, extending in the radial direction from the drive shaft It is provided with a cutting part containing the wire of a metal or synthetic resin material.
The lawn mower according to the present invention has the advantage that the blades are made of wire, which significantly reduces the risk of injury due to breakage of the blade, collision of the blade with objects around the mowing operation, and easy maintenance.

Description

Mowers {GRASS ELIMINATOR WITH WIRE CUTTER}

The present invention relates to a mower, and more particularly to a mower having a blade formed of a metal wire.

Generally, mowers are used to remove weeds, seedlings growing on the ridges between rice fields and fields, and weeds and grasses growing around them.

Typically, the mower is configured to cut the grass by rotating the blade, the engine providing the driving force for rotating the blade is to be carried to the user's body, and after the engine power passes through the clutch, the body pipe through the flexible cable It is transmitted to the rotating shaft inside of. A bevel gear is installed at the end of the rotating shaft, and in the bevel gear, the drive shaft for rotating the blade rotates while the power transmission direction is changed.

By the way, the conventional blade is formed in the form of a strip formed with a through hole that can be fitted to the drive shaft, it was common that one side edge that collides with the pool is sharply formed.

Such a conventional blade has the hassle of exchanging the whole blade or grinding the edge when the edge blade is dull during the mowing process repeatedly, and when the blade collides with the ground gravel or structure, the gravel is splashed by workers or Injuries to neighbors or blades often broke.

In order to solve this problem, a method of installing a protective cover for protecting the blade under the blade of the lawn mower has been recently proposed. Since the safety cover or the protective cover has to be additionally configured, it is cumbersome to install and the blade is free. If it is delayed, it is still necessary to replace or sharpen the blade, so the problem of use is not completely solved.

The present invention has been made to solve the above problems, and an object thereof is to provide a mower having a blade portion formed of steel wire.

Another object of the present invention is to provide a mower formed to facilitate extension of the blade portion after removal of the broken blade portion of the blade portion.

The lawn mower according to the present invention for achieving the above object is fixed to the drive shaft of the drive unit installed on the end of the workbench and rotates together with the drive shaft, and fixed to the rotary unit rotates together with the rotary unit, from the drive shaft And a cut portion comprising a wire of metal or synthetic resin material extending in the radial direction.

The rotating unit has a fastening hole penetrating the upper and lower surfaces in the center so that the drive shaft can pass through, and includes a cover portion having a predetermined internal space, and the cut portion is mounted inside the cover portion and together with the cover portion. It is fixed to the cover portion to rotate, and further comprises a winding roll wound around the wire, the cover portion has a disk-shaped upper plate formed with a first fastening hole through which the drive shaft is fitted through the upper and lower surfaces in the center, and downward from the edge of the upper plate A top cover including an upper skirt extending a predetermined length of the upper cover and a second fastening hole into which a driving shaft is fitted in correspondence with the first fastening hole, and having a cylindrical pillar member extending a predetermined length downward from a lower surface of the upper plate. And a lower plate formed in a disc shape to correspond to the upper plate at a lower end of the pillar member, and The lower cover extends a predetermined length upward from the edge and includes a lower skirt spaced apart from the lower end of the upper skirt by a predetermined distance, and the winding roll is preferably fixed to the pillar member.

At the lower end of the upper skirt is formed an inlet groove drawn upwards, the lower skirt is formed with a protrusion protruding toward the inlet groove at a position corresponding to the inlet groove, the projection to fix the wire Fixing protrusions may be formed to protrude upward.

The cutting part further includes an auxiliary housing including a horizontal plate covering an upper surface of the winding roll, and a side plate having a through portion extending downward from an edge of the horizontal plate and allowing a wire extending from the winding roll to pass therethrough. The auxiliary housing may further include a one-way clutch part connecting the auxiliary housing and the cover part to rotate together with the cover part and the take-up roll in one direction and rotate separately in the other direction, wherein the one-way clutch part is It is installed on the cover portion and has a plurality of first projections protruding toward the auxiliary housing side, wherein one end of the first projection is protruded inclined toward the auxiliary housing as the one end is adjacent to the cover portion and extends to the other end and to the auxiliary housing First clutch portion having elastic force so that the other end can be in close contact with the cover portion side And formed in the auxiliary housing, one end of which extends vertically from the auxiliary housing to form a locking jaw, and extends along an extension direction extending from one end of the first protrusion to the other end from the upper end of the locking jaw. And a second clutch member having a plurality of second protrusions extending curvedly to the surface of the auxiliary housing, wherein the first and second protrusions extend from one end to the other end in the extending direction. It is the same as the direction of rotation to rotate for the work, and each of the first and second projections are preferably formed at regular intervals apart from each other along the circumferential direction in the cover portion and the auxiliary housing, respectively.

The lawn mower according to the present invention has the advantage that the blades are made of wire, which significantly reduces the risk of injury due to breakage of the blade, collision of the blade with objects around the mowing operation, and easy maintenance.

1 is a perspective view showing a first embodiment of the lawn mower according to the present invention,
Figure 2 is an exploded perspective view of the lawn mower of Figure 1,
3 is a cross-sectional view of the lawn mower of FIG.
4 is a perspective view showing another embodiment of the lawn mower further comprising an auxiliary cover member;
5 is a partially cutaway perspective view showing a second embodiment of the lawn mower according to the present invention;
6 is an exploded perspective view of the lawn mower of FIG. 5.

Hereinafter, with reference to the accompanying drawings will be described in more detail the lawn mower according to the present invention.

1 to 3 show a first embodiment of the lawn mower 100 according to the invention.

Referring to the drawings, the lawn mower 100 of the present embodiment is installed on the drive shaft 30 formed at the end of the work table 10 to cut the weeds through the rotational drive.

The work table 10 is to transmit a rotational force through the power generating unit 20 worn by the operator, such a structure is the same as the conventional mowing device, so a detailed description thereof will be omitted.

As shown in FIGS. 2 and 3, the lawn mower 100 includes a rotating unit to which the drive shaft 30 is coupled, and a cutting unit 140 installed at the rotating unit to cut weeds.

The rotating unit includes a cover part 110 consisting of an upper cover 111 and a lower cover 120, the cover part 110 is coupled to the drive shaft 30 and the take-up roll of the cutting part 140 to be described later ( 141 provides an interior space to be mounted.

The upper cover 111 includes an upper plate 112 having a first fastening hole 113 formed at the center thereof, and an upper skirt 114 extending a predetermined length downward from an edge of the upper plate 112.

The first fastening hole 113 is formed to a diameter corresponding to the outer diameter of the drive shaft 30, the outer diameter of the pillar member 121 of the lower cover 120 to be described later with respect to the first fastening hole 113. The area of the diameter corresponding to is drawn downwards by a predetermined depth.

The lower cover 120 has a second fastening hole 122 corresponding to the first fastening hole 113 at the center of the upper surface, and has a pillar member 121 extending a predetermined length in the vertical direction, and the pillar member ( A lower plate 123 formed in parallel with the upper plate 112 and a lower skirt 124 extending upward from the edge of the lower plate 123 at the lower end of the 121.

The upper plate 112 and the lower plate 123 are formed to have the same diameter, and the wire 144 of the cutting unit 140, which will be described later, is spaced apart by a predetermined length between the upper skirt 114 and the lower skirt 124. It will provide a moving space to move.

The upper cover 111 and the lower cover 120 are welded to each other in the center or are coupled through a bolt to rotate integrally with the drive shaft 30.

The cutting unit 140 includes a winding roll 141 coupled to the pillar member 121, a cutting wire 144 wound around the winding roll 141, and an auxiliary housing 150 surrounding the winding roll 141. do.

The winding roll 141 includes a hollow body 142 having an inner diameter corresponding to the diameter of the pillar member 121, and guide plates 143 formed at upper and lower ends of the hollow body 142. The wire 144 is wound around 142. The wire 144 is preferably wound so that both ends protrude outward.

The auxiliary housing 150 is for wrapping the winding roll 141 and limiting the unwinding length of the wire 144, the horizontal plate 151 and the horizontal plate 151 covering the upper surface of the winding roll 141. It includes a side plate 152 extending downwards of the outermost. The side plate 152 is to cover the space between the guide plate 143 of both sides of the take-up roll 141, the through portion 153 is formed so that the wire 144 can protrude to the outside on each opposite side have.

In addition, the rotation unit includes a one-way clutch unit 130 so that the rotational direction of the cover unit 110 and the auxiliary housing 150 can be constrained in only one direction.

The one-way clutch unit 130 is coupled to the auxiliary housing 150 to rotate together with the cover unit 110 and the take-up roll 141 in one direction, but separately from the cover unit 110 and the take-up roll 141 for the other direction. It is intended to enable rotation.

The one-way clutch unit 130 has a first clutch member 131 installed on the upper cover 111 and a second clutch member 134 installed on the auxiliary housing 150.

The first clutch member 131 includes a ring member 132 attached to the lower surface of the upper plate 112 in a circular ring shape, and a plurality of first protrusions 133 protruding downward from the ring member 132. The first protrusion 133 is arranged to be spaced apart from each other by a predetermined interval along the circumferential direction of the ring member 132, and is formed such that the other end is inclined downward as it extends from one end connected to the ring member 132 to the other end. . In particular, the first protrusion 133 is formed of a material that is elastically deformable so that the other end protruding downward is pushed upward when the external force is applied, and can return to the inclined position downward again when the external force is removed.

The first clutch member 131 is welded and fixed to the lower surface of the upper plate 112 of the upper cover 111.

The second clutch member 134 includes a plurality of second protrusions formed on the auxiliary housing 150, and one end of the second protrusion 135 on the upper surface of the horizontal plate 151 of the auxiliary housing 150 is a horizontal plate 151. The latching jaw is formed to extend vertically from) and extends to the upper surface of the horizontal plate 151 as it extends to the other end.

Extension directions extending from one end to the other end of the first protrusion 133 and the second protrusion 135 are the same in a state facing each other, and the direction extending from the one end to the other end is the same as the cover part 110 for mowing. The winding roll 141 coincides with the rotational direction in which it is rotated.

Therefore, when the cover 110 and the take-up roll 141 are rotated by the driving of the drive shaft 30 for the mowing operation, the other end of the first protrusion 133 is lowered in the state of the second protrusion 135. The auxiliary housing 150 is rotated in one direction together with the cover 110 by being caught on one side, that is, the locking jaw.

On the contrary, when the auxiliary housing 150 is rotated in the other direction, the first protrusion 133 is upwardly along the upper surface of the second protrusion 135 in a state of first contacting the other end of the second protrusion 135. Since the auxiliary housing 150 is allowed to rotate in the other direction while being pressurized, the auxiliary housing 150 does not interfere with the cover 110 or the take-up roll 141 when the auxiliary housing 150 rotates in the other direction. Only it becomes possible to rotate individually.

In the present exemplary embodiment, the first clutch portion and the second clutch portion are formed on the lower surface of the upper plate 112 and the upper surface of the horizontal plate 151 of the auxiliary housing 150, but the first and second clutch portions are different from the upper skirt. It may be formed on the inner side of the 114 or lower skirt 124 and the outer side of the side plate 152 of the auxiliary housing 150, respectively.

The lawn mower 100 of the present invention is configured to cut the weeds while being rotated while the wire 144 protrudes outward through the penetrating portion 153 of the auxiliary housing 150, and the drive shaft 30 for the cutting operation. When the cover 110 and the winding roll 141 is rotated in one direction by the (), the auxiliary housing 150 is rotated in the same direction with the cover 110 by the one-way clutch 130, so that the entire unit This same rotation is made.

When the wire 144 is broken during the cutting operation, the wire 144 wound on the winding roll 141 is released to expose a new wire 144, and the auxiliary housing 150 is opposite to the direction of rotation during the cutting operation. The wire 144 is released from the take-up roll 141 while rotating in the direction, and at this time, only the auxiliary housing 150 is rotated by the one-way clutch 130 to stop the cover 110 and the take-up roll 141. Since the wire 144 is released, the new wire 144 may be exposed. As the auxiliary housing 150 rotates in the other direction, the wire 144 needs to be released so that the winding direction of the wire 144 coincides with the rotation direction in which the cover 110 rotates for cutting.

In addition, the lawn mower 100 may further include a separate auxiliary cover 160 and 110 on the lower surface of the lower cover 120, as shown in FIG.

The auxiliary cover 160, 110, the material is formed with a fitting protrusion 161 that can be fitted to the inside of the pillar portion in the center of the upper surface, the upper surface of the lower cover 120 of the fitting protrusion 161 The curved surface portion 162 is formed to be in close contact with the lower surface and curved to protrude downward.

Thus, the auxiliary cover 160, 110, the material is installed in the lower portion of the cover 110, the mowing work 100 to move to the ground to move the lawn mower 100 to the ground so that the curved surface 162 touches the ground when working. By doing so, it is possible to reduce the force of the operator during the mowing operation to keep the mower 100 at a predetermined interval spaced to the ground, thereby increasing work convenience.

5 and 6 show a second embodiment of the lawn mower 200.

The lawn mower 200 of the present embodiment includes a cover 210 having an upper cover 211 and a lower cover 220, and the upper cover 211 has two drawing grooves 213 at the bottom of the upper skirt 114. It is formed at a position facing each other with respect to the center of the upper cover 211.

In addition, the lower cover 220 has a protrusion 222 protruding upward to correspond to the inlet groove 213 at the edge of the lower plate 221, and an edge of the lower plate 221 to correspond to the inlet groove 213. Is bent upwards to form a protrusion 222. In addition, the fixing protrusion 223 protrudes upward from the protruding portion 222, which is to wind and fix the wire 234.

The winding roll 230 of the present embodiment is provided with a partition plate 233 between the guide plates 232 on both sides of the hollow body 231, so that each wire 234 exposed to both sides can be individually wound. It is.

The wire 234 of the present embodiment is colored in different colors according to the length of the take-up roll 230, so that the remaining length of the wire 234 remaining on the take-up roll 230 through the color of the wire 234 is used. It is easy to grasp.

The wire 234 of the present embodiment may fix the wire 234 to the fixing protrusion 223 during use, and extend the length by releasing from the fixing protrusion 223 when the wire 234 is damaged. The damaged wire 234 is cut and the weed is cut with the newly exposed wire 234.

In addition, the lawn mower 200 of the present embodiment may be formed by bending the lower protrusion 222 projecting downward on the lower plate 221 of the lower cover 220 so that the lower cover 220 may be mowed to the ground. .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

100; Mowers
110; Cover
111; Upper cover
112; Top 113; 1st fastening hole
114; Upper skirt
120; Lower cover
121; Pillar member 122; 2nd fastening hole
123; Lower plate 124; Bottom skirt
130; One-way clutch
131; First clutch member
132; Ring member 133; First projection
134; Second clutch member
135; 2nd projection
140; Cutting section
141; Winding roll
142; Hollow body 143; Guide plate
144; wire
150; Auxiliary Housing
151; Horizontal plate 152; shroud
153; Penetration

Claims (6)

A rotating unit fixed to a drive shaft of a drive unit installed at an end of a work table and rotating together with the drive shaft;
And a cutting part fixed to the rotating unit and rotating together with the rotating unit and including a wire of a metal or a synthetic resin material extending in a radial direction from the driving shaft. The method of claim 1,
The rotating unit has a fastening hole penetrating the upper and lower surfaces in the center so that the drive shaft can pass, and includes a cover portion having a predetermined internal space,
The cutting unit is mounted on the inside of the cover portion is fixed to the cover portion to rotate with the cover portion, the lawn mower characterized in that it further comprises a winding roll wound the wire. The method of claim 2,
The cover part includes an upper cover including a disc-shaped upper plate having a first fastening hole through which the driving shaft is fitted, penetrating the upper and lower surfaces thereof, and an upper skirt extending a predetermined length downward from an edge of the upper plate.
A second fastening hole is formed on the upper surface thereof to correspond to the first fastening hole, and has a cylindrical pillar member extending a predetermined length downwardly from the lower surface of the upper plate, and a lower end of the pillar member to correspond to the upper plate. It has a lower plate formed in a plate shape and a lower cover including a lower skirt extending a predetermined length upward from the edge of the lower plate spaced apart from the lower end of the upper skirt a predetermined distance,
The take-up roll is a mower, characterized in that fixed to the pillar member. The method of claim 3, wherein
At the lower end of the upper skirt is formed an inlet groove drawn upwards, the lower skirt is formed with a protrusion projecting toward the inlet groove at a position corresponding to the inlet groove,
The mower, characterized in that the fixing protrusion protrudes upward to fix the wire. The method of claim 3, wherein
The cutting part further includes an auxiliary housing including a horizontal plate covering an upper surface of the winding roll, and a side plate having a through portion extending downward from an edge of the horizontal plate and allowing a wire extending from the winding roll to pass therethrough. and,
And a one-way clutch portion connecting the auxiliary housing and the cover portion such that the auxiliary housing rotates together with the cover portion and the take-up roll in one direction and rotates separately in the other direction. 6. The method of claim 5,
The one-way clutch part is provided in the cover part and has a plurality of first protrusions protruding toward the auxiliary housing side, wherein one end of the first protrusion protrudes inclined toward the auxiliary housing as one end is adjacent to the cover part and extends to the other end. A first clutch member having an elastic force such that the other end facing the auxiliary housing can be in close contact with the cover part;
It is formed in the auxiliary housing, one end is extended vertically from the auxiliary housing to form a locking jaw, and extends along the extension direction extending from one end to the other end of the first projection portion from the upper end of the locking jaw Including a second clutch member having a plurality of second projections extending to be curved to the surface of,
The first and second protrusions extend in the extending direction from one end to the other end in the same rotation direction as the cover part rotates for the mowing operation, and the first and second protrusions respectively support the cover part and the auxiliary part. Mowers, characterized in that formed in the housing spaced apart from each other at regular intervals.
KR1020110100060A 2011-09-30 2011-09-30 Grass eliminator with wire cutter KR20130035636A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110100060A KR20130035636A (en) 2011-09-30 2011-09-30 Grass eliminator with wire cutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110100060A KR20130035636A (en) 2011-09-30 2011-09-30 Grass eliminator with wire cutter

Publications (1)

Publication Number Publication Date
KR20130035636A true KR20130035636A (en) 2013-04-09

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Application Number Title Priority Date Filing Date
KR1020110100060A KR20130035636A (en) 2011-09-30 2011-09-30 Grass eliminator with wire cutter

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Country Link
KR (1) KR20130035636A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3545747A4 (en) * 2016-12-27 2019-12-25 Honda Motor Co., Ltd. Working vehicle
KR20210053070A (en) * 2019-11-01 2021-05-11 김정대 Body wear preventer for mowers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3545747A4 (en) * 2016-12-27 2019-12-25 Honda Motor Co., Ltd. Working vehicle
KR20210053070A (en) * 2019-11-01 2021-05-11 김정대 Body wear preventer for mowers

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