KR200359485Y1 - Rotary blade for mowing machines - Google Patents
Rotary blade for mowing machines Download PDFInfo
- Publication number
- KR200359485Y1 KR200359485Y1 KR20-2004-0015050U KR20040015050U KR200359485Y1 KR 200359485 Y1 KR200359485 Y1 KR 200359485Y1 KR 20040015050 U KR20040015050 U KR 20040015050U KR 200359485 Y1 KR200359485 Y1 KR 200359485Y1
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- Prior art keywords
- blade
- rotating plate
- shaft
- hole
- shaft pin
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Classifications
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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
- A01D34/73—Cutting apparatus
- A01D34/733—Cutting-blade mounting means
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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
- A01D34/82—Other details
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Harvester Elements (AREA)
Abstract
본 고안은 예취기용 회전칼에 관한 것으로, 더욱 구체적으로는 회전판상에 접히거나 펼쳐지도록 축으로 고정설치되는 칼날의 교체가 용이하고 고속회전과정에서 칼날축부가 분리될 염려가 없으며 구조가 간단한 예취기용 칼날체에 관한 것이다.The present invention relates to a rotary knife for mowing machines, more specifically, for easy replacement of the blade fixed to the shaft to be folded or unfolded on the rotating plate, there is no fear of separation of the blade shaft portion in the high-speed rotation process for simple mowing machine It is about the blade.
즉, 중심축구멍(12)에서 주연부(10')내측으로 장방형의 결합구멍(14)이 방사상으로 적어도 2개가 형성되는 회전판(10)과;That is, the rotating plate 10 in which at least two rectangular coupling holes 14 are radially formed in the peripheral portion 10 'from the central shaft hole 12;
상기 회전판결합구멍(14)의 일부분에 끼워지는 장방형의 결합편(20)과; 원판상의 상하걸편(34)(34')이 일체로 부착되고 회전판(10)두께만큼의 결합간극부(36)를 갖는 축핀(32)이 일단부에 설치되어 있는 칼날(30);로 구성되어 동력전달축에 와셔 및 너트로 고정설치하게 됨을 특징으로 하는 예취기용 회전칼이다.A rectangular engaging piece 20 fitted into a portion of the rotating plate engaging hole 14; The upper and lower hook pieces 34 and 34 'on the disc are integrally attached, and the blade 30 is provided at one end thereof with a shaft pin 32 having a coupling gap 36 corresponding to the thickness of the rotating plate 10. Rotary knife for mowing machine, characterized in that fixed to the power transmission shaft washer and nut.
Description
본 고안은 예취기용 회전칼에 관한 것으로, 더욱 구체적으로는 회전판상에 접히거나 펼쳐지도록 축으로 고정설치되는 칼날의 교체가 용이하고 고속회전과정에서 칼날축부가 분리될 염려가 없으며 구조가 간단한 예취기용 칼날체에 관한 것이다.The present invention relates to a rotary knife for mowing machines, more specifically, for easy replacement of the blade fixed to the shaft to be folded or unfolded on the rotating plate, there is no fear of separation of the blade shaft portion in the high-speed rotation process for simple mowing machine It is about the blade.
일반적으로 잔디나 잡초등을 깎는데 사용되는 예취기는 회전판상에 방사상으로 칼날이 배치되어 동력전달장치의 동력에 의해 고속회전하는 칼날에 의해 예취작업이 이루어지고 있다.Generally, mowing machines used to mow grass or weeds are radially disposed on a rotating plate, and mowing operations are performed by blades rotating at high speed by the power of a power transmission device.
상기와 같이 예취작업을 하는 과정에서 고속회전하는 칼날이 돌이나 단단한 이물질등의 물체에 부딪히게 되는 경우에는 칼날이 파손됨과 아울러 파편들이 사방으로 비산되어 작업자의 안전을 위협하는 등 안전사고의 위험성이 많았다.In the case of cutting work as mentioned above, if the blade that rotates at high speed hits an object such as a stone or a hard foreign object, the blade is damaged and fragments scattered everywhere, threatening the safety of workers. Many.
그래서 종래에도 이를 감안하여 회전판에 칼날이 축핀으로 고정설치되어 동력전달장치에 의해 회전판의 고속회전이 이루어지게 되면 원심력에 의해 회전판의 축핀을 축으로 하여 칼날이 외측으로 펼쳐져서 예취작업을 수행하도록 되어 있고 칼날부분이 단단한 물체에 부딪히는 경우에는 칼날이 축핀을 축으로 하여 회전되는 반대방향으로 젖혀져서 칼날의 충격을 완화시키는 작용에 의해 칼날의 파손방지및 물체가 튕겨나가는 것을 방지토록 하고 있다.Therefore, in consideration of this, the blade is fixed to the rotating plate by the shaft pin, and when the high speed rotation of the rotating plate is made by the power transmission device, the blade is extended to the outside by the shaft pin of the rotating plate by centrifugal force to perform mowing operation. If the blade hits a hard object, the blade is flipped in the opposite direction of rotation about the shaft pin to mitigate the impact of the blade, thereby preventing the blade from breaking and preventing the object from being thrown out.
그러나, 이러한 종래의 예취기용 칼날은 회전판에 형성된 축공에 칼날을 축핀으로 끼워 스냅링 또는 너트 및 와셔등으로 결합설치하는 구성이므로 축핀의 고정상태 불안정으로 인한 축핀의 이탈염려가 있어 안전사고의 문제점이 있을 뿐만 아니라 칼날부분이 마모및 손상되었을때는 이를 쉽게 교체할수 없었고 이를 교체한다고 하더라도 축핀의 결합상태를 안정적으로 유지하는데 어려움이 있으므로 일부 칼날이 마모 또는 손상되더라도 회전판과 칼날로 이루어진 회전칼전체를 교체사용해야되므로 경제성도 떨어지게 되었다.However, since the blade for the conventional mowing machine is configured to insert the blade into the shaft pin formed in the rotating plate by the shaft pin and coupled with the snap ring or nut and washer, there is a risk of safety accident because the shaft pin may be detached due to the instability of the shaft pin. In addition, when the blade part is worn and damaged, it could not be easily replaced, and even if it is replaced, it is difficult to maintain the stable state of the shaft pins. Therefore, even if some blades are worn or damaged, the rotating knife and the rotating knife made of the rotating plate must be replaced and used. Economics also fell.
또한, 회전판에 칼날이 접힐수 있는 삽입홈 회전판에서 칼날을 축핀으로 설치하기 위한 연결링크 및 고정핀등과 같은 다수의 설치부재를 필요로 하게 되어 그 구조가 복잡하였었다.In addition, in the insertion groove rotary plate that can be folded on the rotating plate requires a number of installation members such as connecting links and fixing pins for installing the blade as an axial pin, the structure was complicated.
본 고안은 이러한 문제점을 해결하기 위하여 중심축구멍에서 주연부내측으로 장방형의 결합구멍이 형성되는 회전판과, 상기 결합구멍의 일부분에 끼워지는 결합편과, 상하걸편과 결합간극부를 갖는 축핀이 일단부에 설치되어 있는 칼날로 이루어진 회전칼로 구성되어 상기 중심축구멍을 통해 결합구멍끝단부에 칼날축핀을 삽지시킨 다음 나머지 결합구멍부분은 결합편을 끼워 동력전달장치의 동력전달축에 회전판을 와셔및 너트로 고정하는 수단에 의해 칼날의 교체가 용이하고 칼날축핀을 상하 걸편으로 분리되지 않고 결합구멍에 끼워지므로 안정성을 갖고 그 구조가 간단한 예취기용 회전칼을 제공함에 있다.In order to solve this problem, the present invention provides a rotary plate having a rectangular coupling hole formed in the periphery of the central shaft hole, a coupling piece fitted to a portion of the coupling hole, and a shaft pin having an upper and lower hook pieces and a coupling gap at one end thereof. It consists of a rotary knife consisting of a blade that is installed, and inserts the blade shaft pin to the end of the coupling hole through the central shaft hole, and the remaining coupling hole is inserted into the coupling piece with a washer and nut on the power transmission shaft of the power transmission device. It is easy to replace the blade by means of fixing and the blade shaft pin is inserted into the coupling hole without being separated into the upper and lower hook pieces to provide a rotary knife for the mowing machine having a stable and simple structure.
도 1은 본 고안의 구성을 나타낸 사시도1 is a perspective view showing the configuration of the subject innovation
도 2는 본 고안의 구성을 나타낸 일부분해사시도Figure 2 is a partial perspective view showing the configuration of the present invention
도 3은 본 고안의 칼날이 접힌 상태 평면도Figure 3 is a plan view of the blade folded state of the present invention
도 4는 본 고안의 칼날이 펼쳐진 상태 평면도4 is a plan view of the blade of the present invention unfolded
도 5는 본 고안의 일부확대 단면도5 is a partially enlarged cross-sectional view of the present invention
도 6은 본 고안의 회전칼이 장착된 상태의 평면예시도Figure 6 is a plan view of a state equipped with a rotary knife of the present invention
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
10 : 회전판 10' : 주연부10: rotating plate 10 ': peripheral portion
12 : 중심축구멍 14 : 결합구멍12: central axis hole 14: coupling hole
14a : 축안내홈 20 : 결합편14a: shaft guide groove 20: coupling piece
20a : 축안내홈 30 : 칼날20a: Shaft guide groove 30: Blade
32 : 축핀 34,34' : 걸편32: shaft pin 34,34 ': masterpiece
36 : 결합간극부 40 : 동력전달축36: coupling gap 40: power transmission shaft
42 : 와셔 44 : 너트42: washer 44: nut
본 고안은 동력전달장치의 동력전달축(40)에 결합되는 중심축구멍(12)에서 주연부(10')내측으로 장방형의 결합구멍(14)이 방사상으로 적어도 2개가 형성되는 회전판(10)과, 상기 회전판 결합구멍(14)의 일부분에 끼워지는 장방형의 결합편(20)과, 원판상의 상하걸편(34)(34')이 일체로 부착되고 회전판(10)두께 만큼의 결합간극부(36)를 갖는 축핀(32)이 일단부에 설치되어 있는 칼날(30)로 구성되어 있다.The present invention is a rotary plate 10 in which at least two rectangular coupling holes 14 are formed radially inward from the central shaft hole 12 coupled to the power transmission shaft 40 of the power transmission device 10 '. A rectangular coupling piece 20 fitted into a portion of the rotating plate coupling hole 14 and an upper and lower hook pieces 34 and 34 'on a disc are integrally attached to each other, and a coupling gap portion 36 corresponding to the thickness of the rotating plate 10 is provided. The shaft pin 32 which has) is comprised by the blade 30 provided in the one end part.
상기 결합구멍(14)의 끝단부와 결합편(20)끝단부에는 반구형의 축안내홈(14a)(20a)이 서로 대향되게 형성되어 축핀(32)이 원활하게 회동되게 한다.Hemispherical shaft guide grooves 14a and 20a are formed to face each other at the end of the coupling hole 14 and the end of the coupling piece 20 to smoothly rotate the shaft pin 32.
이와 같이 되어 있는 본 고안은 칼날(30)에 일체로 설치되어 있고 결합간극부(36)에 위치하고 있는 축핀(32)부분을 회전판(10)의 중심축구멍(12)을 통해 결합구멍(14)에 끼워 결합구멍(14)끝단부에 축핀(32)을 삽지시킨 다음 나머지 결합구멍(14)부분은 결합편(20)을 끼워 결합구멍(14)끝단부와 결합편(20)끝단부의 반구형축안내홈(14a)(20a)에 칼날축핀(32)이 회동되게한 상태에서 동력전달장치의 동력전달축(40)에 회전판(10)의 중심축구멍(12)을 끼워 와셔(42)및 너트(44)로 고정함으로서 회전칼이 고정설치된다.According to the present invention, the coupling pin 14 is integrally installed at the blade 30 and the shaft pin 32 located at the coupling gap 36 is connected to the coupling hole 14 through the central shaft hole 12 of the rotating plate 10. Insert the shaft pin 32 into the end of the coupling hole 14, and then insert the coupling piece 20 into the other coupling hole 14, and the hemispherical shaft of the coupling hole 14 end and the coupling piece 20 end. In the state where the blade shaft pin 32 is rotated in the guide grooves 14a and 20a, the central shaft hole 12 of the rotating plate 10 is inserted into the power transmission shaft 40 of the power transmission device. The rotary knife is fixed by fixing to 44.
상기와 같이 칼날(30)이 설치되어 있는 상태에서 동력전달장치에 의해 동력전달축(40)의 고속회전이 이루어지면 동력전달축(40)에 고정된 회전판(10)이 함께 회전하면서 회전판(10)의 결합구멍(14)끝단부에 축핀(32)으로 설치되어 있는칼날(30)은 원심력에 의해 축핀(32)을 축으로 하여 밖으로 펼쳐져서 예취기능을 하게 되고, 예취과정에서 칼날(30)이 단단한 물체에 부딪히게 되는 경우에는 칼날(30)은 축핀(32)을 축으로 하여 회전반대방향으로 젖혀져서 칼날(30)이 부딪히는 충격을 완화시켜 칼날손상 및 이물질의 튕기는 등의 안전사고를 방지하게 된다.When the high speed rotation of the power transmission shaft 40 is made by the power transmission device in the state where the blade 30 is installed as described above, the rotating plate 10 fixed to the power transmission shaft 40 rotates together and the rotating plate 10 The blade 30, which is installed at the end of the coupling hole 14 as the shaft pin 32, is unfolded outward with the shaft pin 32 as the axis by centrifugal force, and serves as a mowing function, and the blade 30 in the mowing process. When hitting this hard object, the blade 30 is flipped in the opposite direction of rotation with the shaft pin 32 as a shaft to mitigate the impact that the blade 30 strikes, thereby causing safety accidents such as blade damage and splashing of foreign objects. Will be prevented.
이렇게 칼날(30)의 고속회전과정에서는 결합구멍(14)끝단부에 설치된 칼날축핀(32)은 상하 일체로 부착된 걸편(32)(32')에 의해 칼날(30)및 회전판(10)에서 분리될 염려가 없다.Thus, in the high speed rotation process of the blade 30, the blade shaft pin 32 installed at the end of the coupling hole 14 is in the blade 30 and the rotating plate 10 by the hook pieces 32, 32 'attached up and down integrally. There is no fear of separation.
그리고 칼날(30)사용과정에서 마모,손상등에 의해 일부칼날(30)을 교체하고자 할때에는 상기 칼날(30)설치와 역순으로 하여 분리하여 안전하고 쉽게 교체사용할수 있게 된다.And when you want to replace some of the blades 30 due to wear, damage, etc. in the process of using the blade 30 in the reverse order to the blade 30 installation can be separated and used safely and easily replace.
이와 같이 본 고안의 예취기용 회전칼은 중심축구멍에서 방사상으로 장방형의 결합구멍이 형성된 회전판과, 상기 결합구멍일부분에 끼워지는 결합편과, 상하 걸편과 결합간극부를 갖는 축핀이 일단부에 설치되어 있는 칼날로 구성되어 일부 칼날을 간편하고 안전하게 교체사용할수 있고 칼날의 고속회전시에 칼날축핀이 칼날과 회전판에서 분리될 염려가 없고 그 구조도 간단하므로 매우 경제적으로 사용할수 있는 이점이 있다.As described above, the rotary knife for the harvester of the present invention has a rotary plate having a radial engaging hole formed radially from a central shaft hole, a coupling piece fitted into a portion of the coupling hole, and a shaft pin having an upper and lower hook pieces and a coupling gap portion at one end thereof. It consists of a blade that can be used easily and safely replace some blades, there is no fear that the blade shaft pin is separated from the blade and the rotating plate during the high-speed rotation of the blade, and the structure is simple, there is an advantage that can be used very economically.
Claims (2)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20-2004-0015050U KR200359485Y1 (en) | 2004-05-31 | 2004-05-31 | Rotary blade for mowing machines |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20-2004-0015050U KR200359485Y1 (en) | 2004-05-31 | 2004-05-31 | Rotary blade for mowing machines |
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| KR200359485Y1 true KR200359485Y1 (en) | 2004-08-21 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006080711A1 (en) * | 2004-10-08 | 2006-08-03 | Ju Cheol Park | Magic rolling cutter |
| KR100690575B1 (en) | 2005-12-23 | 2007-03-12 | 주식회사 삼원테크 | The brush cutter |
| KR20150088118A (en) * | 2014-01-23 | 2015-07-31 | 류욱현 | Consisting of a drive shaft connected with the inner diameter and outer diameter of the cam at the same time using the lawn mower blade structure and its driving method and a driving method is applied to the lawn mower |
| KR20170002693U (en) * | 2016-01-19 | 2017-07-27 | 주식회사 기성정공 | Blade Assembly for Lawn Trimmer |
| KR20180117406A (en) * | 2017-04-19 | 2018-10-29 | 정태근 | Double-sided cutter for lawn trimmer |
| US20190380268A1 (en) * | 2018-06-13 | 2019-12-19 | Kverneland Group Kerteminde A/S | Assembly for a mower of a mowing or chopping machine, replacement cutting tool and mower |
| US20210185911A1 (en) * | 2018-07-12 | 2021-06-24 | Husqvarna Ab | Robotic Lawnmower Cutting Arrangement, Robotic Lawnmower, Cutting Blade, and Methods |
-
2004
- 2004-05-31 KR KR20-2004-0015050U patent/KR200359485Y1/en not_active IP Right Cessation
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006080711A1 (en) * | 2004-10-08 | 2006-08-03 | Ju Cheol Park | Magic rolling cutter |
| KR100690575B1 (en) | 2005-12-23 | 2007-03-12 | 주식회사 삼원테크 | The brush cutter |
| KR20150088118A (en) * | 2014-01-23 | 2015-07-31 | 류욱현 | Consisting of a drive shaft connected with the inner diameter and outer diameter of the cam at the same time using the lawn mower blade structure and its driving method and a driving method is applied to the lawn mower |
| KR101676906B1 (en) * | 2014-01-23 | 2016-11-17 | 류욱현 | Consisting of a drive shaft connected with the inner diameter and outer diameter of the cam at the same time using the lawn mower blade structure and its driving method and a driving method is applied to the lawn mower |
| KR20170002693U (en) * | 2016-01-19 | 2017-07-27 | 주식회사 기성정공 | Blade Assembly for Lawn Trimmer |
| KR200484264Y1 (en) | 2016-01-19 | 2017-08-18 | 주식회사 기성정공 | Blade Assembly for Lawn Trimmer |
| KR20180117406A (en) * | 2017-04-19 | 2018-10-29 | 정태근 | Double-sided cutter for lawn trimmer |
| KR101998830B1 (en) | 2017-04-19 | 2019-07-10 | 정태근 | Double-sided cutter for lawn trimmer |
| US20190380268A1 (en) * | 2018-06-13 | 2019-12-19 | Kverneland Group Kerteminde A/S | Assembly for a mower of a mowing or chopping machine, replacement cutting tool and mower |
| US20210185911A1 (en) * | 2018-07-12 | 2021-06-24 | Husqvarna Ab | Robotic Lawnmower Cutting Arrangement, Robotic Lawnmower, Cutting Blade, and Methods |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| REGI | Registration of establishment | ||
| T201 | Request for technology evaluation of utility model | ||
| T701 | Written decision to grant on technology evaluation | ||
| G701 | Publication of correction | ||
| FPAY | Annual fee payment |
Payment date: 20090810 Year of fee payment: 6 |
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| LAPS | Lapse due to unpaid annual fee |