KR20110085369A - The cutter apparatus for weeder - Google Patents

The cutter apparatus for weeder Download PDF

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Publication number
KR20110085369A
KR20110085369A KR1020100005121A KR20100005121A KR20110085369A KR 20110085369 A KR20110085369 A KR 20110085369A KR 1020100005121 A KR1020100005121 A KR 1020100005121A KR 20100005121 A KR20100005121 A KR 20100005121A KR 20110085369 A KR20110085369 A KR 20110085369A
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KR
South Korea
Prior art keywords
blade
rotating plate
fixed
cutter device
protrusion
Prior art date
Application number
KR1020100005121A
Other languages
Korean (ko)
Inventor
박학제
Original Assignee
박학제
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 박학제 filed Critical 박학제
Priority to KR1020100005121A priority Critical patent/KR20110085369A/en
Publication of KR20110085369A publication Critical patent/KR20110085369A/en

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    • 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
    • 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
    • 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
    • A01D34/76—Driving mechanisms for the 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
    • A01D34/82—Other details
    • 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

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Harvester Elements (AREA)

Abstract

PURPOSE: A cutter for a weeder is provided to facilitate replacement and fixing of a blade without a separate coupling device. CONSTITUTION: A cutter for a weeder comprises: a rotational plate(10) in which a plurality of insertion protrusions are formed in both sides thereof and a fixing hole is formed in the center thereof; and a blade(30) which is formed in a reverse triangle shape. The blade includes: a protrusion receiving unit which is formed so that the insertion protrusion can be received; a joint(31) fixed to the rotational plate; and a extension unit(32) which is expanded to the front end of the joint.

Description

Cutter device for mowers {The cutter apparatus for weeder}

The present invention relates to a cutter device for mowing crops, grass, scrubs, etc. vegetation in a field or field, and in particular, by configuring a fitting protrusion and a pressing protrusion, each of which is fixed by a rotary plate coupled to a mower, a separate fastening device. It is easy to replace and fix the blade on the rotating plate, so it is easy to use, and the blade is firmly fixed to the rotating plate in the form that the blade is fitted or pressed on the rotating plate to prevent the accident of the blade falling off during mowing operation to prevent safety accidents. It relates to a cutter device.

In general, mowing works have been carried out using tools such as sickle or shovel in areas where vegetation, grass, and cultivation have grown in the fields or fields, but this method is avoided due to physical fatigue and inefficient work ability. Recently, the motor is used as a main power source to transmit power to the power transmission shaft, and the mower is developed by combining a rotary plate with a blade formed at the end of the power transmission shaft. Mowing has been performed by cutting them using the rotational force of the blades.

However, the mowing blades as described above are made of a metal material, but the mowing operation is easy, but the mowing blades are often rubbed on the ground stone or the ground during the mowing operation, causing damage to the blades, and the fragments of the damaged blades are scattered in all directions by rotational force. Therefore, safety accidents such as injuries to workers and personnel around the working area have been occurred very frequently, and the entire blade is often replaced by damaged blades due to the damage of metal cutting blades. A cumbersome problem of loss and replacement has occurred.

In order to compensate for this problem, as shown in Korean Patent Publication No. 10-2009-0122664, by combining the strings of several strands to the rotating plate coupled to the mowing machine to make a mowing work to ensure the work stability by forming a cutting member of the mower It was planned.

However, the string of the Patent Publication No. 10-2009-0122664 is made of the rotating plate by a coupling ring formed of the rotating plate, but the fixing ring is formed on one side of the rotating plate is not easy to accommodate the line that does not always maintain a tight state Since the string is tied to one side of the rotating plate and penetrated through the fixing ring, it is inconvenient to tie the string, and the rope tied to the rotating plate is loosened during mowing, which reduces the efficiency of the operation. Has been.

An object of the present invention devised to solve the above problems is, by configuring the fitting protrusion and the pressing projection to be fixed to the rotary blade coupled to the mowing machine, respectively, it is easy to replace and fix the blade to the rotating plate without a separate fastening device The present invention relates to a cutter device for mowing devices that is easy to use and that the blade is firmly fixed to the rotating plate in the form of being pinched or pressed onto the rotating plate to prevent the blade from being separated during mowing operation.

The above object is achieved by the following configuration provided in the present invention.

The cutter device for mowers according to the present invention is a cutter device for mowers, wherein a blade is coupled to an end portion of a power transmission shaft rotating at a high speed using a motor as a power source, and the blade is rotated to perform mowing operation. Is composed of a fixing hole is fixed and inserted into the rotating plate is formed in each of a plurality of fitting protrusions on both sides, and in the form of an inverted triangle with a vertex down to the top, a plurality of protrusions receiving the fitting projections are formed It is characterized in that it comprises a blade formed of an extension that is formed to be fixed to the rotating plate and extending to make the mowing work to the tip of the coupling.

In addition, in the cutter apparatus for mowing the mowing operation by the blade is coupled to the end of the power transmission shaft that rotates at high speed by using a motor as a power source, the cutter is configured in the form of an inverted triangle with a vertex downward to the top A blade formed of an extension portion is formed and extending to make a mowing operation to the front end of the coupling portion, and the fixing hole for inserting and fixing the power transmission shaft end in the center and the upper pressing projection for pressing both sides of the coupling portion on both sides is formed And it characterized in that it comprises a rotary plate each formed with a lower pressing projection for pressing the extension portion to the lower bottom of the upper pressing projection.

As described above, the cutter device for mowers according to the present invention forms a fitting protrusion and a pressing protrusion on the rotating plate so that the blade is fitted or pressed and fixed, so that the blade is easily coupled or detached from the fastener without a separate fastening operation. It is easy to replace the blades to prevent safety accidents during mowing, as well as to ensure that the blade and the fasteners are firmly coupled to prevent the phenomenon that the blades are separated from the fasteners during the work.

1 is a perspective view showing a preferred form of the cutter for mowers according to the first aspect of the present invention;
2 is an exploded perspective view showing a preferred form of the lawn mower cutter according to the first aspect of the present invention;
3 is an exemplary view showing a preferred form in which the coupling portion according to the first aspect of the present invention is separated,
4 (a), (b), (c) is an exemplary view showing a preferred form in which the extension is fixed to the engaging portion according to the first aspect of the present invention,
5 is an exemplary view showing a preferred form in which the blade is fixed by the fixing ring and the pressing projection according to the first aspect of the present invention,
6 is an exploded perspective view showing a preferred form of the blade is fixed by the fixing ring and the pressing projection according to the first aspect of the present invention,
Figure 7 is a perspective view showing a preferred form that the fixing ring and the pressing projection is formed on the rotating plate according to the first aspect of the present invention,
8 is a cross-sectional view of the BB portion of FIG.
9 (a) and 9 (b) are perspective views showing a preferred form of the cutter for mowing according to the second aspect of the present invention;
Figure 10 (a), (b) is an exemplary view showing a preferred form in which the blade is fixed by the upper, lower compression projections according to the second aspect of the present invention,
11 is a cross-sectional view of the AA portion of FIG. 10 (a);
Figure 12 (a), (b) is an exemplary view showing a preferred form in which the extension portion is pressed on the rotating plate according to the second aspect of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail the first and second aspects of the cutter device for lawn mowers proposed as a preferred embodiment in the present invention.

1 is a perspective view showing a preferred form of the cutter device for lawn mowers of the first aspect according to the present invention, and FIG. 2 is an exploded perspective view showing a preferred form of the cutter device for mowers of the first aspect according to the present invention. The cutter apparatus for mowers which concerns on 1st aspect of this invention is demonstrated with reference.

First, the lawn mower to which the present invention is applied is configured to include a lawnmower cutter device at an end of a high speed rotating power transmission shaft using a motor as a power source, so that the lawnmower cutter device is rotated according to the driving of the lawnmower to perform mowing operation.

The present invention relates to a cutter device for mowing the mowing operation by the mowing device, as shown in Figure 1, the rotating plate 10 is coupled to the mowing device and rotated, and the blade 30 is fixed to the rotating plate 30 It is composed.

As shown in FIG. 2, the rotating plate 10 is rotated by receiving power from the motor of the lawn mower, and is configured in the form of a thin metal plate so that the load of the motor is not caught by the weight during the rotation, and the power transmission is configured in the lawn mower. Fixing hole 13 is configured to be fixed to the end of the shaft is formed on both sides of the rotary plate 10 is formed a plurality of fitting projections 20 are fitted to the engaging portion 31 of the blade 30 to be described later.

The fitting protrusion 20 is configured to protrude upward from the surface of the rotating plate 10 to be fixed with the coupling part 31. The larger the number of the fitting protrusion 20 is, the more the fitting protrusion 31 is fitted with the rotating plate ( 10) and the blade 30 is firmly fixed, but the fitting protrusion 20 is formed so as to be spaced apart from each other in the shape of three or three triangles on both sides of the rotating plate 10 for ease of manufacturing cost and installation process. The coupling part 31 of the 30 is made to be fixed on the rotating plate 10.

The blade 30 has a rear portion is fixed to both sides of the rotary plate 10, the front end is protruded from the rotary plate 10 is configured to perform a substantial mowing work is made of synthetic fibers and natural fibers or mixed yarns, synthetic resins, Composed of any one of the thin metal material and is formed in the form of an inverted triangle having a vertex to the top, a plurality of projection receiving device 33 is accommodated in the fitting protrusion 20 is formed is fixed to the rotating plate 10 (31) and the extension portion (32) is extended to make the mowing operation by rubbing the crops in accordance with the rotation of the rotary plate 10 to the front end of the coupling portion (31).

In addition, the diameter of the projection receiving device 33 and the fitting projection 20 of the coupling portion 31 is formed by fitting the protrusion 20 to the projection receiving device 33 by the centrifugal force generated during the mowing operation The fitting protrusion 20 is separated from the receiving port 33 to prevent the blade 30 from being separated from the rotating plate 10.

Here, the coupling portion of the blade 30 as shown in Figures 3 and 4 (a), (b), (c) to facilitate the structure in which the blade 30 is fixed to the rotating plate 10 31) and the extension portion 32, the coupling portion 31 is always fixed to the rotating plate 10 and the metal so that the extension portion 32 can be selectively inserted into or removed from the coupling portion 31 Is formed of a material to facilitate fixing in the rotating plate (10).

In addition, the coupling portion 31 formed of the metal material is formed with a projection receiver 33 to be fitted to the fitting protrusion 20 of the rotating plate 10 and one side length thereof so that the end of the extension portion 32 is inserted into one side of the tip. The blade receiving tool 35 is cut in the direction is configured to extend so that one side of the extension portion 32 is inserted into or detached from the blade receiving tool 35 of the engaging portion 31 fixed to the rotating plate (10).

Here, when one side of the extension part 32 is inserted into the blade receiving tool 35 of the coupling part 31, an extension part is formed by inserting a pressing part 37 which is locally pressed outward of the blade receiving tool 35. (32) can be fixed.

The pressing portion 37 is preferably pressed using a tool such as a nipper.

5 to 8, in order to secure the fixed state of the rotary plate 10 and the blade 30, the upper side is perpendicular to the center of the fitting protrusion 20 formed on the rotary plate 10. The fixing ring 40 is formed in a ring shape made of a bent form.

In addition, the length of the extension portion 32 can be pressed against the diameter of the extension portion 32 to squeeze the extension portion 32 of the blade 30 to the lower portion of the fitting protrusion 20 of the rotating plate 10. Compression protrusions 50 are respectively spaced apart.

Ring receiving device 39 is formed as the engaging portion 31 of the blade 30 is accommodated by receiving the fixing ring 40 and the extension portion 32 is seated between the crimping projection 50 blade 30 It is configured to be fixed to the rotating plate.

Therefore, the structure of the ring receiving device 39 for receiving the ring-shaped fixing ring 40 by the crimping projection 50 for crimping the extension portion 32 while maintaining the locking state even in the rotation of the rotating plate 10 Extension portion 32 is fixed to the rotating plate 10 is to maintain the fixed state of the rotating plate 10 and the blade 30 firmly.

In addition, the crimping protrusion 50 may be formed to be integral with the rotating plate 10 by bending the rotating plate 10 to protrude upward of the rotating plate 10 as shown in FIG. 8.

Therefore, when the motor of the lawn mower is driven by the above configuration, the power transmission shaft and the rotating plate 10 coupled with the motor rotate and the centrifugal force is generated by the rotation of the rotating plate 10 so that the blade 30 rotates at high speed and the rotating plate simultaneously. Mowing operation is to be made by the extension part 32 extending from both sides of the (10).

Therefore, the coupling part 31 and the extension part 32 of the blade 30 are fixed to the rotary plate 10 through the fitting protrusion 20, the fixing ring 40, and the pressing protrusion 50 so that the blade 30 is in operation. ) Can be prevented from being separated from the rotating plate 10 to facilitate the operation, and the blade 30 is fixed to the rotating plate 10 in the form of being fitted or compressed so that the blade 30 can be easily replaced. There is an effect that is made.

On the other hand, the cutter device for a lawn mower according to the first aspect described above is a form in which the blade 30 is fitted to the rotating plate 10 or a part is fitted and the other part is compressed so that the blade 30 is fixed to the rotating plate 10. The cutter device for the lawn mower according to the second aspect of the present invention, in which the blade 30 is pressed and fixed to the rotating plate 10, will be described below with reference to FIGS. 9 to 12.

First, the cutter device for mowers according to the embodiment of the second aspect of the present invention is also coupled to the mowers and is rotated by receiving the power by the motor of the mowers, and fixed to both sides of the rotary plate 100, respectively, The blade 110 is made of a large mowing operation.

As shown in Figure 9 (a), (b) and 10 (a), (b) the blade 110 is formed with an engaging portion 111 is formed in the form of an inverted triangle with a vertex below It consists of an extension portion 112 extending to the mowing work to the front end of the coupling portion 111.

The rotating plate 100 has a fixing hole 103 is inserted into the power transmission shaft end is fixed to the center and the upper pressing projection 120 for pressing both sides of the coupling portion 111 is formed on both sides and the upper pressing Lower compression protrusions 130 for pressing the extension part 112 to the lower portion of the protrusions 120 are formed, respectively, and the blade 110 is fixed to the rotating plate 100 so that the blade 110 is mowed by the rotation of the rotating plate 100. Allow the work to be done.

In addition, the upper pressing protrusion 120 and the lower pressing protrusion 130 are bent by the rotating plate 100 to protrude to the upper side of the rotating plate 100 while being formed integrally with the rotating plate 100, the upper pressing protrusion 120 and the lower The spaced apart lengths of the crimping protrusions 130 may be spaced apart from each other so as to be pressed against the width of both sides of the coupling part 111 and the diameter of the extension part 112.

Here, as shown in FIG. 11, the upper compression protrusion 120 and the lower compression protrusion 130 are configured to be inclined in a tapered shape inwardly to be coupled to the upper compression protrusion 120 and the lower compression protrusion 130. Both sides and the extension part 112 of the part 111 are locked due to the inclined shape of the upper pressing protrusion 120 and the lower pressing protrusion 130 so that the blade 110 is firmly fixed on the rotating plate 100. To be done.

Here, as shown in FIGS. 12A and 12B, an upper end between an upper compression protrusion 120 and a lower compression protrusion 130 formed on both sides of the rotation plate 100, that is, an upper end of the center of the rotation plate 100. Guide ring 140 is formed to open the upper side so as to guide the extension 112.

The blade 110 is composed of an extension portion 112 extending in the longitudinal direction, the interruption of the extension portion 112 is formed on one side of the rotating plate 100, the upper pressing projection 120 and the lower pressing projection 130 After being inserted between the squeezed and guided by the guide ring 140 is configured to squeeze between the upper pressing projection 120 and the lower pressing projection 130 of the other side of the rotating plate (100).

That is, in the state in which the suspension of the extension 112 is guided by the guide ring 140, the upper compression protrusions 120 and the lower compression protrusions 130 on both sides are fixed to both sides of the extension part 112 of the rotating plate 100. It is formed to extend to both sides is configured to perform the mowing operation through the extension portion 112 extended by the rotation of the rotating plate (100).

10: rotating plate 13: fixing hole
20: fitting protrusion 30: blade
31: coupling portion 32: extension portion 33: projection receiving device 35: blade receiving device 37: pressurizing part 39: ring receiving device 40: fixing ring 50: pressing projection 100: rotating plate 103: fixing hole
110: blade 111: coupling portion
112: extension portion 120: upper pressing projection
130: lower compression projection 140: guide ring

Claims (6)

In the cutter device for a mower for performing a mowing operation by the blade is coupled to the end of the power transmission shaft that rotates at high speed using a motor as a power source,
Rotating plate 10 is composed of a fixing hole 13 is inserted into the power transmission shaft end fixed in the center and a plurality of fitting protrusions 20 are formed on both sides,
Consists in the form of an inverted triangle with a vertex below, a projection receiving device 33 is formed to accommodate the fitting projection 20 is formed is a coupling portion 31 is fixed to the rotating plate 10 is formed and the coupling portion 31 Cutter device for a mower, characterized in that it comprises a blade 30 made of an extension portion 32 extending to make the mowing operation to the tip of the). The method of claim 1,
The coupling portion 31 is made of a metal material, one side length is formed so that the projection receiving device 33 is fitted to the fitting protrusion 20 of the rotating plate 10 is inserted into one end of the extension portion 32 Blade cutter tool 35 is cut in the direction is extended, for the lawn mower, characterized in that the pressing portion 37 is formed in which the outer side of the blade holder (35) into which the extension portion 32 is inserted is pressed locally. Cutter device. The method of claim 1,
The fixing ring 40 is formed in the center of the fitting protrusion 20 in a ring shape,
Compression protrusion 50 is formed to compress the extension portion 32 of the blade 30 to the fitting protrusion 20,
Mowing device 39 is formed by the engaging portion 31 of the blade 30 is accommodated by receiving the fixing ring 40 and the extension portion 32 is pressed to the crimping projection (50) Cutter device. In the cutter device for a mower for performing a mowing operation by the blade is coupled to the end of the power transmission shaft that rotates at high speed using a motor as a power source,
A blade 110 formed of an extension part 112 formed to have a coupling part 111 formed in the form of an inverted triangle having a vertex bottom and extending to mow to the tip of the coupling part 111;
A fixing hole 103 is inserted into and fixed to the center of the power transmission shaft, and an upper compression protrusion 120 is formed to compress both sides of the coupling part 111 to both sides, and below the upper compression protrusion 120. Cutter device for a lawn mower, characterized in that it comprises a rotary plate 100 is formed with a lower pressing projection 130 for pressing the extension 112, respectively. The method of claim 4, wherein
The upper pressing protrusion (120) and the lower pressing projection (130) is a cutter device for mowers, characterized in that inclined in a tapered form in the inward direction. The method of claim 4, wherein
Guide rings 140 for guiding the extension 112 to an upper end between the upper compression protrusions 120 and the lower compression protrusions 130 formed on both sides of the rotating plate 100 are formed.
The blade 110 is composed of an extension portion 112 extending in the longitudinal direction, the interruption of the extension portion 112 is formed on one side of the rotating plate 100, the upper pressing projection 120 and the lower pressing projection 130 After being inserted and compressed between the guide ring 140 and guided by the guide ring 140, the upper plate 120 and the other side of the bottom plate 120 are pressed and fixed to the plate 100 and fixed to the plate 112. Both sides of the cutter device for mowing device, characterized in that to extend to both sides of the rotating plate 100 to perform the mowing operation by the rotation of the rotating plate (100).
KR1020100005121A 2010-01-20 2010-01-20 The cutter apparatus for weeder KR20110085369A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100005121A KR20110085369A (en) 2010-01-20 2010-01-20 The cutter apparatus for weeder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100005121A KR20110085369A (en) 2010-01-20 2010-01-20 The cutter apparatus for weeder

Publications (1)

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KR20110085369A true KR20110085369A (en) 2011-07-27

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Application Number Title Priority Date Filing Date
KR1020100005121A KR20110085369A (en) 2010-01-20 2010-01-20 The cutter apparatus for weeder

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103190241A (en) * 2012-01-04 2013-07-10 王盘龙 Combined cutting tool of mower
KR101285493B1 (en) * 2012-08-31 2013-07-12 남병덕 Coupling structure for lawn of the joint-shaped cutter blade
KR20150073359A (en) * 2013-12-23 2015-07-01 권준범 Brush cutter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103190241A (en) * 2012-01-04 2013-07-10 王盘龙 Combined cutting tool of mower
CN103190241B (en) * 2012-01-04 2016-08-31 王盘龙 A kind of hay mover gang tool
KR101285493B1 (en) * 2012-08-31 2013-07-12 남병덕 Coupling structure for lawn of the joint-shaped cutter blade
KR20150073359A (en) * 2013-12-23 2015-07-01 권준범 Brush cutter

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