KR101320993B1 - Power grass cutter - Google Patents

Power grass cutter Download PDF

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Publication number
KR101320993B1
KR101320993B1 KR1020120051782A KR20120051782A KR101320993B1 KR 101320993 B1 KR101320993 B1 KR 101320993B1 KR 1020120051782 A KR1020120051782 A KR 1020120051782A KR 20120051782 A KR20120051782 A KR 20120051782A KR 101320993 B1 KR101320993 B1 KR 101320993B1
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KR
South Korea
Prior art keywords
shaft
pulley
power transmission
power
attached
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KR1020120051782A
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Korean (ko)
Inventor
남영석
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남영석
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Priority to KR1020120051782A priority Critical patent/KR101320993B1/en
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    • 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
    • A01B69/00—Steering of agricultural machines or implements; Guiding agricultural machines or implements on a desired track
    • 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
    • A01D34/67—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 hand-guided by a walking operator
    • A01D34/68—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 hand-guided by a walking operator with motor driven cutters or wheels
    • A01D34/6806—Driving mechanisms
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
    • F02B67/04—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
    • F02B67/06—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus driven by means of chains, belts, or like endless members

Abstract

PURPOSE: A power grass cutter is provided to enable a user to continue a grass cutting work and to cut grass regardless of incline. CONSTITUTION: A power grass cutter comprises: a main body (1) in which a steering handle (1b) is mounted on the rear thereof, a grass cutter attachment unit (1c) is formed on the front thereof, an engine (2) and a transmission (3) are mounted on a frame, a wheel shaft (4) connects to a driven shaft, and wheels (4a, 4b) are attached to the wheel shaft; and an attachment board (5a) of a blade support plate (5) which is coupled to a power grass cutter attachment unit by a coupler. A traveling device drive pulley (2a) and a grass cutter drive pulley (2b) are attached to the drive shaft of the engine side by side. A drive belt (30) is connected between the traveling device drive pulley and the rotational pulley (3a) of the transmission. A power transmission device includes a roller (31a) which is inserted into the operation shaft of a tension device and contacts the outer surface of the drive belt.

Description

동력 예초기 {Power grass cutter}Power mowers {Power grass cutter}

본 발명은 소형엔진으로 추진되는 동력예초기에 관한 것으로 보다 구체적인 것은 소형엔진으로 추진되며 전진과 후진이 가능하고 브레이크 기능을 구비한 구동장치 높낮이 조정과 지형에 대응하는 복수개의 예초날을 갖추어서 이루어진다.
The present invention relates to a power lawn mower propelled by a small engine, and more specifically, is driven by a small engine, and is provided with a plurality of mowing blades corresponding to terrain and height adjustment of a driving device capable of moving forward and backward and having a brake function.

본원 출원인은 관리기에 부착하여 사용할 수 있도록 구성된 관리기 부착형 복식예취기를 개발하여 실용신안등록(실용신안등록 제20-0432379호)을 한바 있으며, 상기 복식예취기는 농기계인 관리기에 착탈시킬 수 있게 구성되어 있지만 관리기에 부착해서 사용해야하므로 사용과 관리가 복잡한 불편이 있었다.
배경기술 실용신안등록 제20-0432379호
실용신안등록 제20-0399422호
Applicant of the present application has developed a utility model registration (utility model registration No. 20-0432379) by developing a manager-type double dresser configured to be attached to the manager, and the dresser is configured to be attached to a farm machine manager However, it was inconvenient to use and manage because it needs to be attached to the manager.
Utility Model Registration No. 20-0432379
Utility Model Registration No. 20-0399422

본 발명은 상기와 같은 불편을 해소하기 위하여 개발된 것이다.
The present invention has been developed in order to solve such inconvenience.

본 발명은 기계본체에 소형엔진을 장착하여 전진과 후진 및 브레이크 작용이 가능한 구동장치와 지면의 형상에 대응하여 예초날이 장치된 예초날지지판의 접지각도가 조정되는 복수개의 가변형 예초날지지판을 구비하여 예초 작업을 보다 편리하고 능률적으로 수행할 수 있게 개발한 것이다.
The present invention is equipped with a plurality of variable cutting blade support plate that is equipped with a small engine mounted on the machine main body and the drive device capable of forward, backward and brake action and the ground angle of the cutting blade support plate equipped with a cutting blade corresponding to the shape of the ground. It was developed to make mowing more convenient and efficient.

이와 같이 된 본 발명은 동력예초기의 본체 선단부에 부착된 예초날지지판이 2∼3등분으로 분할되어 분할부에 각각 경첩이 연결되어 있고, 또 분할된 지지판마다 접지바퀴가 장치되어 접지바퀴의 높낮이 조정을 통해 예초날지지판의 높낮이를 조정할 수 있으며, 각각의 예초날지지판이 지면의 경사도에 대응하여 가변되므로 예초날지지판의 저면에 장치된 예초날칼의 높낮이가 가변되어 예초작업을 할 수 있고, 예초칼날은 그 회전축이 예초날지지판에 장치된 기어박스내에 설치된 구동기어에 접촉하여 회전하고, 또한 예초날지지판의 구동기어는 엔진으로 구동되는 구동회전축과 종동회전축이 유니버셜조인트로 연결되어 있어서 예초날지지판이 높낮이가 다른 지면을 만나면 지형에 따라 예초날지지판이 굴절되면서 지형에 맞추어 가변되어도 동력전달이 지속되어 예취작업을 계속 하게 되고 이로인하여 지형이 경사져 있다해도 지장없이 풀을 벨 수 있는 효과를 낼 수 있게 된다.According to the present invention, the cutting blade support plate attached to the tip of the main body of the power mower is divided into two to three halves, and hinges are connected to the divided parts, and the ground wheels are provided for each divided support plate to adjust the height of the ground wheel. Through the height of the blade support plate can be adjusted through, each of the blade support plate is variable to correspond to the inclination of the ground, so that the height of the blade blades mounted on the bottom of the blade support plate is variable to mow, mowing blade The rotary shaft is rotated in contact with the drive gear installed in the gear box mounted on the mowing blade support plate, and the drive gear of the mowing blade support plate is connected to the drive shaft and driven rotary shaft driven by the engine by the universal joint When the height and height meet different ground, the blade support plate is deflected according to the terrain and the power is changed even if it is changed according to the terrain. The transmission continues and mowing is continued, which makes it possible to cut grass without disturbing the terrain.

그리고 엔진의 구동축에 부착된 구동풀리와 밋션장치의 회전풀리사이에 동력전달 벨트가 설치되어 벨트 외면에 기계본체에 장치한 조작장치로 조정되는 주행용 긴장조정구가 장치되어 있기 때문에 주행용 긴장조정구를 작동시켜 동력전달 벨트를 타이트하게 권착시키면 엔진구동축의 동력이 밋션장치에 전달되어 밋션장치에서 선택한 기어장치에 따라 선택된 회전수로 엔진의 동력전달이 이루어지고 기계본체를 주행방향 또는 후진방향으로 주행시킬 수 있고, 주행용 긴장조정구를 느슨하게 조작하여 동력전달벨트를 이완시키면 엔진구동축의 동력이 밋션장치에 전달되지 않아 기계본체를 정지시킬 수 있게 되는바, 이때 기계의 진행방향을 전환시키거나 운행에 필요한 조작을 할 수 있게 되며, 또 엔진의 구동축에 부착된 구동풀리과 같은 축에 부착된 제2구동풀리와 예초날지지판의 구동축에 부착된 회전풀리 사이에 예초용 동력전달벨트를 설치하여 기계본체에 장치한 예초용 긴장조정구로 예취용 동력전달 벨트를 타이트하게 연결하면 엔진의 동력이 제2구동풀리와 예초날지지판의 구동축에 부착된 회전풀리에 전달되어 예초용칼날을 회전시킬 수 있고, 예초용 긴장조정구를 이완시켜 예초용 동력전달 벨트를 느슨하게 조작하면 엔진의 구동축에 부착된 제2구동풀리와 예초날지지판의 구동축 회전풀리에 엔진의 동력이 전달되지 않아서 예초칼날이 회전하지 않게 되는 조작이 가능하므로 엔진을 구동시키고 기계본체의 핸들부에 장치된 주행용 긴장조정구와 예초용 긴장조정구를 작동시켜 주행 또는 예초용 긴장조정구를 선택 조작하는 간단한 동작으로 예초기 본체를 주행시키거나 중지시킬 수 있고, 예초날칼을 회전시키거나 중지시킬 수 있어서 조작이 간편한 동력예초기를 얻을 수 있는 이점이 있다.
The driving tension adjusting device is installed between the driving pulley attached to the drive shaft of the engine and the rotating pulley of the mission device, and the driving tension adjusting device is installed on the outer surface of the belt by the operation device installed on the machine body. When the power transmission belt is tightened tightly, the power of the engine drive shaft is transmitted to the transmission device, and the engine power is transmitted at the selected speed according to the gear device selected by the transmission device. If you loosen the power transmission belt by loosely operating the tension adjusting device for driving, the power of the engine drive shaft is not transmitted to the transmission device so that the machine body can be stopped. Can be operated and attached to the same shaft as the drive pulley attached to the drive shaft of the engine. A mowing tension adjusting device installed on the machine body by installing a mowing power transmission belt between the second driving pulley and the rotating pulley attached to the drive shaft of the mowing blade support plate, and tightly connects the mowing power transmission belt to the engine. It is transmitted to the rotating pulley attached to the drive shaft of the second drive pulley and the blade blade support plate to rotate the blade for cutting, loosen the mowing tension adjustment mechanism and loosely operate the power transmission belt for mowing Since the power of the engine is not transmitted to the driving shaft rotational pulley of the two-drive pulley and the mowing blade support plate, the mowing blade is not rotated. When operating or stopping the mower body with a simple operation of selecting and operating the tension or mowing tension control device by operating the control device. Can, and to be able to rotate or stop the mowing nalkal has the advantage that you can get Easy-powered lawn mowers.

도 1은 본 발명의 사시도
도 2(A)(B)는 접지바퀴 조정 상태 예시도
도 3(A)(B)는 예초용 칼날과 예초날지지판 단면도
도 4(A)(B)는 본 발명의 측면도
도 5(A)(B)는 주행긴장조정구와 예초용긴장조정구의 예시도
도 5(C)는 도 5(A)부분의 a원내 확대 사시도
도 6은 밋션장치 외관도
도 7은 본 발명의 예초날지지판이 3등분된 예시도
도 8은 도 7의 저면사시도
도 9(A)(B)는 도7의 단면도
도 10은 본 발명의 유니버셜조인트 사시도
도 11은 본 발명의 사용상태도이다.1 is a perspective view of the present invention
Figure 2 (A) (B) is an illustration of the ground wheel adjustment state
Fig. 3 (A) (B) is a cross-sectional view of a cutting blade and a blade support plate
Figure 4 (A) (B) is a side view of the present invention
Figure 5 (A) (B) is an exemplary view of the driving tension adjustment tool and mowing tension adjustment tool
FIG. 5 (C) is an enlarged perspective view of a part of FIG. 5 (A)
6 is an external view of the mission device;
Figure 7 is an illustration of the three cutting blade support plate of the present invention
8 is a bottom perspective view of FIG.
9A and 9B are cross-sectional views of FIG.
10 is a perspective view of the universal joint of the present invention
11 is a state diagram used in the present invention.

본 발명은 후방에 조향핸들(1b)이 장치되고 선단부에 예초기부착부(1c)가 형성되며 프레임(1a)위에 소형엔진(2)과 밋션장치(3)가 나란히 장착되고 밋션장치 종동축에 부착하여 바퀴회전축(4)의 기어를 연결시키고 바퀴회전축(4)양측에 주행바퀴(4a)(4b)를 부착한 부착된 기계본체(1)와,According to the present invention, the steering wheel 1b is provided at the rear, and the mower attachment part 1c is formed at the front end, and the small engine 2 and the mission device 3 are mounted side by side on the frame 1a and attached to the driven device driven shaft. Attached to the gear body of the wheel rotating shaft (4) and the driving wheels (4a, 4b) attached to both sides of the wheel rotating shaft (4),

기계본체 선단에 있는 예초기부착부(1c)에 예초날지지판(5)의 부착판(5a)이 체결구로 체결되는 동력예초기에 있어서,In a power lawn mower in which the attachment plate 5a of the blade cutting plate 5 is fastened by a fastener to the lawn mower attachment portion 1c at the tip of the machine body,

소형엔진의 구동축에 주행장치구동풀리(2a)와 예초기용구동풀리(2b)를 나란히 부착하고 주행장치구동풀리와 밋션장치구동축의 회전풀리(3a)사이에 동력전달벨트(30)를 연결하여 동력전달벨트(30)의 외측면에는 조향핸들(1b)에 부착한 별도의 조작장치(C1)에 의하여 조작되며 동력벨트 외면에서 내면쪽으로 일정각도 진행하고 스트링장치에 의거 그 반대로 이완하는 주행용긴장장치(31)를 설치하여 주행용긴장장치의 작동축에 끼워진 롤러(31a)를 동력벨트 외측면에 접촉시킨 주행동력전달장치와,The drive unit pulley (2a) and the mower drive pulley (2b) are mounted side by side on the drive shaft of the small engine, and the power transmission belt 30 is connected between the drive unit pulley and the rotation pulley (3a) of the mission unit drive shaft. The tensioning device for driving that is operated by a separate operation device C1 attached to the steering wheel 1b on the outer surface of the transmission belt 30 and proceeds at an angle from the outer surface of the power belt to the inner surface and relaxes vice versa based on the string device. A driving power transmission device in which the roller 31a fitted to the operating shaft of the driving tension device is brought into contact with the outer side of the power belt;

소형엔진의 구동축에 부착된 예초기용구동풀리(2b)와 기계본체(1) 외측면에 부착된 전달축에 두개의 회전풀리(32)(33)가 하나로 연결된 회전풀리를 설치하여 외측 회전풀리(32)와 예초기용구동풀리(2b) 사이에 제1동력전달벨트(34)를 연결하여 제1동력전달벨트(34) 외면에 조향핸들(1b)에 부착한 별도의 조작장치(C2)에 의하여 조작되며, 제1동력전달벨트 외면에서 내면쪽으로 일정각도 진행하고 스프링장치에 의거 그 반대로 이완하는 예초용긴장장치(35)를 설치하여 제1동력전달벨트를 긴장시키고 이완시키는 예초기용 동력전달장치와, 기계본체(1) 외측면에 부착된 전달축의 내측 회전풀리(33)와 예초기구동회전축(53) 회전풀리(54) 사이에 제2동력전달벨트(36)를 연결하여 제2동력전달벨트의 외면에서 내면쪽으로 진행하고 그 반대로 이완할 수 있게 조정볼트로 조정되는 긴장조정구(37)를 장치하여 제2동력전달벨트의 긴장강도를 높이고 이완시킬 수 있게 장치한 예초기용 동력벨트 긴장조정장치와, The outer pulley (2b) is attached to the drive shaft of the small engine and the rotating pulley (32) is connected to the transmission shaft attached to the outer surface of the machine main body (1) as a rotating pulley (1) 32) and a separate operating device C2 connected to the steering wheel 1b on the outer surface of the first power transmission belt 34 by connecting the first power transmission belt 34 between the lawn mower drive pulley 2b. It is operated, and the power transmission device for mowing and tensioning and relaxing the first power transmission belt by installing a mowing tension device (35) for progressing a predetermined angle from the outer surface of the first power transmission belt to the inner surface and vice versa based on the spring device; The second power transmission belt 36 is connected between the inner rotation pulley 33 of the transmission shaft attached to the outer side of the machine body 1 and the mowing mechanism rotation shaft 53 and the rotation pulley 54 of the second main transmission belt. From the outside to the inside and vice versa A power belt tension adjusting device for mowers, which is equipped with a tension adjusting device 37 to be adjusted to increase and relax the tension strength of the second power transmission belt;

예초날지지판을 2∼3등분 되게 분할하여 분할부를 경첩(H)으로 연결한 2∼3개의 분할체로 된 예초날지지판(50)(51)(52)과 분할체로된 각각의 예초날 지지판 상부에 기어박스(G)가 장치되어 예초날지지판 저면에 장치되어 회전하는 예초칼날 회전축(57)을 지지수용하고 엔진쪽 동력을 예초날에 전달하는 예초날구동축(53)을 지지수용하여 예초날회전축과 예초날구동축의 베벨기어(55)(58)가 치합하는 동력전달장치가 구비되고, 예초날구동축의 일단에 회전풀리(54)가 장치되어 제2동력전달벨트(36)와 연결되며 반대측에는 타측예초날구동축의 일단에 연결된 유니버셜조인트(U)의 스플라인축(U1)과 길이방향으로 접속되게 스플라인접속홈(U2)이 구비되어 예초날구동축간에 유니버셜조인트가 접속되는 예초날구동장치가 구비되어서 이루어진 구성이다.
The blade support plates 50, 51 and 52 made up of two to three segments, each of which is divided into two or three portions, and the partitions are connected by a hinge H, and each of the blade support plates made up of divided parts. The gearbox G is installed at the bottom of the mowing blade supporting plate to support the mowing blade rotating shaft 57 that rotates and to support the mowing blade driving shaft 53 for transmitting engine side power to the mowing blade. Bevel gears 55 and 58 of the mowing blade drive shaft is provided with a power transmission device, a rotary pulley 54 is provided at one end of the mowing blade drive shaft is connected to the second power transmission belt 36 and on the opposite side A mowing blade driving device is provided with a spline connecting groove U2 which is connected to the spline shaft U1 of the universal joint U connected to one end of the other blade cutting shaft in the longitudinal direction so that the universal joint is connected between the mowing blade driving shafts. It is a configuration.

1 : 기계본체 1a : 프레임
1b : 조행핸들 1c : 예초기부착부
2 : 소형엔진 2a : 주행장치구동풀리
2b : 예초기용구동풀리 3 : 밋션장치
3a : 회전풀리 4 : 바퀴회전축
4a,4b : 주행바퀴 5 : 예초날지지판
5a : 부착판 30 : 동력전달벨트
31 : 주행용긴장장치 31a : 롤러
32,33 : 회전풀리 34 : 제1동력전달벨트
35 : 예초용긴장장치 36 : 제2동력전달벨트
37 : 긴장조정구 50,51,52 : 예초날지지판
53 : 예초기구동회전축 54 : 회전풀리
55,58 : 베벨기어 56 : 예초날칼
57 : 회전축 G : 기어박스
U : 유니버셜조인트 U1 : 스플라인축
U2 : 스플라인축접속홈1: Machine body 1a: Frame
1b: steering wheel 1c: mower attachment part
2: small engine 2a: driving device drive pulley
2b: Mowing drive pulley 3: Mission device
3a: rotary pulley 4: wheel rotation shaft
4a, 4b: driving wheel 5: mowing blade support plate
5a: mounting plate 30: power transmission belt
31: Tension device for driving 31a: Roller
32,33: rotating pulley 34: first power transmission belt
35: tensioning device for mowing 36: second power transmission belt
37: tension adjusting device 50, 51, 52: mowing blade support plate
53: mowing mechanism rotating shaft 54: rotating pulley
55,58: Bevel Gear 56: Cutting Blade
57: axis of rotation G: gearbox
U: Universal Joint U1: Spline Shaft
U2: Spline Shaft Connection Groove

Claims (1)

후방에 조향핸들(1b)이 장치되고 선단부에 예초기부착부(1c)가 형성되며 프레임(1a)위에 소형엔진(2)과 밋션장치(3)가 나란히 장착되고 밋션장치 종동축에 부착하여 바퀴회전축(4)의 기어를 연결시키고 바퀴회전축(4)양측에 주행바퀴(4a)(4b)를 부착한 부착된 기계본체(1)와,
기계본체 선단에 있는 예초기부착부(1c)에 예초날지지판(5)의 부착판(5a)이 체결구로 체결되는 동력예초기에 있어서,
소형엔진의 구동축에 주행장치구동풀리(2a)와 예초기용구동풀리(2b)를 나란히 부착하고 주행장치구동풀리와 밋션장치구동축의 회전풀리(3a)사이에 동력전달벨트(30)를 연결하여 동력전달벨트(30)의 외측면에는 조향핸들(1b)에 부착한 별도의 조작장치에 의하여 조작되며 동력벨트 외면에서 내면쪽으로 일정각도 진행하고 스트링장치에 의거 그 반대로 이완하는 주행용긴장장치(31)를 설치하여 주행용긴장장치의 작동축에 끼워진 롤러(31a)를 동력벨트 외측면에 접촉시킨 주행동력전달장치와,
소형엔진의 구동축에 부착된 예초기용구동풀리(2b)와 기계본체(1) 외측면에 부착된 전달축에 두개의 회전풀리(32)(33)가 하나로 연결된 회전풀리를 설치하여 외측 회전풀리(32)와 예초기용구동풀리(2b) 사이에 제1동력전달벨트(34)를 연결하여 제1동력전달벨트(34) 외면에 조향핸들(1b)에 부착한 별도의 조작장치에 의하여 조작되며, 제1동력전달벨트 외면에서 내면쪽으로 일정각도 진행하고 스프링장치에 의거 그 반대로 이완하는 예초용긴장장치(35)를 설치하여 제1동력전달벨트를 긴장시키고 이완시키는 예초기용 동력전달장치와, 기계본체(1) 외측면에 부착된 전달축의 내측 회전풀리(33)와 예초기구동회전축(53) 회전풀리(54) 사이에 제2동력전달벨트(36)를 연결하여 제2동력전달벨트의 외면에서 내면쪽으로 진행하고 그 반대로 이완할 수 있게 조정볼트로 조정되는 긴장조정구(37)를 장치하여 제2동력전달벨트의 긴장강도를 높이고 이완시킬 수 있게 장치한 예초기용 동력벨트 긴장조정장치와,
예초날지지판을 2∼3등분 되게 분할하여 분할부를 경첩(H)으로 연결한 2∼3개의 분할체로 된 예초날지지판(50)(51)(52)과 분할체로된 각각의 예초날 지지판 상부에 기어박스(G)가 장치되어 예초날지지판 저면에 장치되어 회전하는 예초칼날 회전축(57)을 지지수용하고 엔진쪽 동력을 예초날에 전달하는 예초날구동축(53)을 지지수용하여 예초날회전축과 예초날구동축의 베벨기어(55)(58)가 치합하는 동력전달장치가 구비되고, 예초날구동축의 일단에 회전풀리(54)가 장치되어 제2동력전달벨트(36)와 연결되며 반대측에는 타측예초날구동축의 일단에 연결된 유니버셜조인트(U)의 스플라인축(U1)과 길이방향으로 접속되게 스플라인접속홈(U2)이 구비되어 예초날구동축간에 유니버셜조인트가 접속되는 예초날구동장치가 구비되어서 이루어진 동력 예초기The steering wheel 1b is installed at the rear, the mower attachment part 1c is formed at the front end, and the small engine 2 and the mission device 3 are mounted side by side on the frame 1a, and are attached to the driven device driven shaft. (4) the attached machine body (1) to which the gears of (4) are connected and the driving wheels (4a) and (4b) are attached to both sides of the wheel rotating shaft (4),
In a power lawn mower in which the attachment plate 5a of the blade cutting plate 5 is fastened by a fastener to the lawn mower attachment portion 1c at the tip of the machine body,
The drive unit pulley (2a) and the mower drive pulley (2b) are mounted side by side on the drive shaft of the small engine, and the power transmission belt 30 is connected between the drive unit pulley and the rotation pulley (3a) of the mission unit drive shaft. The tensioning device for driving 31 which is operated by a separate operation device attached to the steering wheel 1b on the outer surface of the transmission belt 30 and proceeds at an angle from the outer surface of the power belt to the inner surface and relaxes vice versa based on the string device. A driving power transmission device in which the roller 31a fitted to the actuating shaft of the driving tension device is brought into contact with the outer side of the power belt;
The outer pulley (2b) is attached to the drive shaft of the small engine and the rotating pulley (32) is connected to the transmission shaft attached to the outer surface of the machine main body (1) as a rotating pulley (1) 32) is operated by a separate operating device attached to the steering wheel 1b on the outer surface of the first power transmission belt 34 by connecting the first power transmission belt 34 between the lawn mower drive pulley 2b, A power transmission device for lawn mowers, which tensions and relaxes the first power transmission belt by installing a mowing tension device 35 for proceeding at an angle from the outer surface of the first power transmission belt to the inner surface and vice versa based on the spring device, and the machine body. (1) Inner surface on the outer surface of the second power transmission belt by connecting the second power transmission belt 36 between the inner rotation pulley 33 and the mowing drive rotation shaft 53 rotation pulley 54 of the transmission shaft attached to the outer surface To the side and vice versa And that tension jojeonggu 37, the second power transmission device to increase the tension strength of the belt for a power device makes it possible to relax the lawn mower belt tension adjustment devices,
The blade support plates 50, 51 and 52 made up of two to three segments, each of which is divided into two or three portions, and the partitions are connected by a hinge H, and each of the blade support plates made up of divided parts. The gearbox G is installed at the bottom of the mowing blade supporting plate to support the mowing blade rotating shaft 57 that rotates and to support the mowing blade driving shaft 53 for transmitting engine side power to the mowing blade. Bevel gears 55 and 58 of the mowing blade drive shaft is provided with a power transmission device, a rotary pulley 54 is provided at one end of the mowing blade drive shaft is connected to the second power transmission belt 36 and on the opposite side A mowing blade driving device is provided with a spline connecting groove U2 which is connected to the spline shaft U1 of the universal joint U connected to one end of the other blade cutting shaft in the longitudinal direction so that the universal joint is connected between the mowing blade driving shafts. Power mower
KR1020120051782A 2012-05-16 2012-05-16 Power grass cutter KR101320993B1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200349319Y1 (en) 2004-02-17 2004-05-04 홍석운 a brush cutter of cart type
KR20060074914A (en) * 2006-03-06 2006-07-03 이석중 Reaper
KR20090002379A (en) * 2007-06-28 2009-01-09 이홍성 Cut off grass machine
KR100914138B1 (en) 2008-05-26 2009-08-27 남병대 Brush cutter grass

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200349319Y1 (en) 2004-02-17 2004-05-04 홍석운 a brush cutter of cart type
KR20060074914A (en) * 2006-03-06 2006-07-03 이석중 Reaper
KR20090002379A (en) * 2007-06-28 2009-01-09 이홍성 Cut off grass machine
KR100914138B1 (en) 2008-05-26 2009-08-27 남병대 Brush cutter grass

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