KR101186790B1 - Protective plate support device for bush cutter - Google Patents

Protective plate support device for bush cutter Download PDF

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Publication number
KR101186790B1
KR101186790B1 KR1020120057587A KR20120057587A KR101186790B1 KR 101186790 B1 KR101186790 B1 KR 101186790B1 KR 1020120057587 A KR1020120057587 A KR 1020120057587A KR 20120057587 A KR20120057587 A KR 20120057587A KR 101186790 B1 KR101186790 B1 KR 101186790B1
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KR
South Korea
Prior art keywords
blade
support member
protective
disk
protective disk
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KR1020120057587A
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Korean (ko)
Inventor
임병준
Original Assignee
동명산업(주)
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Priority to KR1020120057587A priority Critical patent/KR101186790B1/en
Application granted granted Critical
Publication of KR101186790B1 publication Critical patent/KR101186790B1/en
Priority to PCT/KR2012/010632 priority patent/WO2013180363A1/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
    • A01D34/81—Casings; Housings
    • 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
    • A01D34/82—Other details
    • 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
    • A01D34/828—Safety devices

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

Abstract

PURPOSE: A device for supporting a blade protective plate of a grass mower is provided to prevent the protective plate from rotating. CONSTITUTION: A device for supporting a blade protective plate of a grass mower comprises a protective plate(10) in which vanes are radially formed below the rotating blade, a bearing in which the inner ring is fixed to the center of the protective plate, a screw which couples the inner ring of the bearing with a male screw, a cover plate(15) which covers the center of the protective plate, a supporting member(16) which is in the bottom center of the cover plate, a connecting band which is fixed to the rod supporting the supporting member, and a stop unit(19) which is formed in order to be inhibit the rotation of the protective plate.

Description

예초기용 칼날 보호원판의 지지장치{PROTECTIVE PLATE SUPPORT DEVICE FOR BUSH CUTTER}Support device for cutting blade protection disc for mowers {PROTECTIVE PLATE SUPPORT DEVICE FOR BUSH CUTTER}

본 발명은 예초기용 칼날 보호원판의 지지장치에 관한 것으로서, 상세하게는 The present invention relates to a support device for a blade protection disc for mowing, in detail

보호원판의 회전을 방지하되 보호원판이 회전압력을 받게되면, 상기 보호원판이 소정각도 회동하도록 구성하는 기술을 제공하고자 한다.To prevent the rotation of the protective disk, but when the protective disk is subjected to the rotation pressure, to provide a technique for configuring the protective disk to rotate a predetermined angle.

일반적으로 예초기는 산이나 들에서 자라는 잡초를 베고 제거하는데 사용되고 있는 것으로, 잡초를 베는 칼날이 소형 엔진이나 배터리 모터의 동력장치의 회전축에 수평으로 장착되어 고속으로 회전한다.Generally, mowers are used to cut and remove weeds growing in mountains or fields. The blades for cutting weeds are horizontally mounted on a rotating shaft of a power unit of a small engine or a battery motor and rotate at high speed.

그러나, 작업자가 예초기로 잡초를 제거하기 위해서는 상기 고속으로 회전하는 칼날을 지면이 고르지 않는, 그리고, 자갈 등의 장애물이 있는 지면에서 작업을 하는 경우가 많으며 칼날이 지면이나 자갈에 부딪치게 되어 칼날이 부러지거나 자갈 등이 튀어 올라 작업자나 주변 사람들이 다치는 안전사고가 빈번하게 일어나고 있다.However, in order to remove the weeds with a mower, the worker rotates the blades rotated at high speed in uneven ground, and often works on the ground with obstacles such as gravel, and the blades collide with the ground or gravel and the blade is broken. There are frequent accidents that cause accidents such as falling or gravel to injure workers or people around them.

따라서, 상기한 문제점을 해결하기 위해 종래에는 회전하는 칼날 하부에 방사상으로 다지(多枝)가 형성된 보호원판을 장착하여 칼날을 보호하고 있다. 이러한 보호원판을 고속으로 회전하는 칼날의 하부에 장착시키기 위해서는 보호원판 중심부에 베어링 외륜을 고정시키고, 상기 베어링의 내륜을 상기 칼날 하부에 돌출된 회전축 끝단에 형성된 수나사부에 삽입하고 나사체결하여 고정시키고 있다. 이러한 체결구조에서, 칼날이 고속회전하게 되면 상기 보호원판은 베어링의 마찰력과, 잡초의 회전축 감김 등에 의해 칼날 회전방향으로 회전력이 발생하기 때문에 이러한 보호원판의 회전력을 저지하기 위한 많은 발명, 고안들이 개시되고 있다.Therefore, in order to solve the above problem, the blade is protected by mounting a protective disk in which a dodge is formed radially under the rotating blade. In order to mount the protective disk on the lower portion of the blade rotating at high speed, the outer ring of the bearing is fixed to the center of the protective disk, and the inner ring of the bearing is inserted into the male screw formed at the end of the rotating shaft protruding from the lower blade, and then screwed and fixed. have. In this fastening structure, when the blade is rotated at a high speed, the protection disk is a friction force of the bearing, because the rotational force is generated in the blade rotation direction due to the weaving of the rotating shaft of the weeds, so many inventions, designs for preventing the rotational force of the protection disk disclosed It is becoming.

한국 등록특허 제10-01027085호 및 제10-0910237호와 와 한국 공개특허 10-2011-0056195호에는 보호커버를 소정각도씩 회전가능하도록 작업봉과 보호커버 일단을 탄성부재(스프링, 지지수단)로 연결하는 예초기용 보호커버를 개시하고 있다.In Korean Patent Nos. 10-01027085 and 10-0910237 and Korean Patent Publication No. 10-2011-0056195, one end of the working rod and the protective cover is made of an elastic member (spring, support means) to rotate the protective cover at a predetermined angle. Disclosed is a protective cover for mowing.

그러나, 상기한 등록 및 공개특허는 보호커버가 소정각도 회전하면서 돌 등의 장애물에 충돌하여 돌 등이 주변에 튀어올라 작업자나 주변사람이 다치는 안전사고가 발생할 수 있기 때문에 보호커버를 회전하지 못하도록 지지하는 것이 바람직하다.However, the above-described registered and published patents do not support the rotation of the protective cover because the protective cover is rotated by a predetermined angle, and the collision of the stone and the like may occur, causing the safety accident to be injured. It is desirable to.

한국 등록특허 제10-1054726호와, 등록실용신안 제20-0214892호, 제20-0238542호 및 공개 실용신안 제20-2010-0008361호에는 보호커버/안전판의 회전을 방지하기 위해 작업봉/손잡이부와 보호커버/안전판 사이에 강체(剛體)의 지지대로 연결하는 구조의 예초기 칼날 보호장치를 개시하고 있다.Korean Patent Registration No. 10-1054726, Utility Model Registration No. 20-0214892, No. 20-0238542 and Korean Utility Model No. 20-2010-0008361 have a rod / knob for preventing rotation of the protective cover / safety plate. Disclosed is a mower blade protection device having a structure connected to a support of a rigid body between a part and a protective cover / safety plate.

그러나, 상기에 개시된 특허나 실용신안들은 강체 지지대의 구조가 무겁고, 또한, 작업봉/손잡이부의 체결부분에 응력이 집중되어 파손될 우려가 있을 뿐만아니라, 보호원판에서 발생하는 충격력이나 진동이 강체 지지대를 통하여 그대로 작업봉/손잡이부에 전달되기 때문에 작업자의 피로감을 증가시키고 작업능률을 저하시키는 문제가 있다.
However, the above-described patents and utility models have a heavy structure of the rigid support, and there is a risk of damage due to the concentration of stress at the fastening portion of the rod / handle, and the impact force or vibration generated from the protective disc may cause the rigid support. Since it is transmitted to the work rod / handle as it is, there is a problem that increases the fatigue of the worker and lowers the work efficiency.

[문헌 1] 한국 등록특허 제10-01027085호[Document 1] Korean Patent Registration No. 10-01027085 [문헌 2] 한국 등록특허 제10-0910237호[Document 2] Korean Patent Registration No. 10-0910237 [문헌 3] 한국 공개특허 10-2011-0056195호[Document 3] Korean Patent Publication No. 10-2011-0056195 [문헌 4] 한국 등록특허 제10-1054726호[Document 4] Korean Patent Registration No. 10-1054726 [문헌 5] 한국 등록실용신안 제20-0214892호[Reference 5] Korea Utility Model Registration No. 20-0214892 [문헌 6] 한국 등록실용신안 제20-0238542호[Document 6] Korean Utility Model Model No. 20-0238542

본 발명은 상기와 같은 종래의 문제점을 해결하기 위한 것으로, 칼날이 회전하면서 돌 등이 튀어 오르지 않는 간단하면서도 가벼운 구조의 보호원판의 회전을 방지하는 예초기용 보호원판의 지지부재를 제공하는데 그 목적이 있다.
The present invention is to solve the conventional problems as described above, to provide a support member of the protective disk for lawn mowers to prevent the rotation of the protective disk of a simple and lightweight structure that does not protrude stones while the blade rotates. have.

또, 보호원판의 회전을 방지하되 보호원판이 회전압력을 받게되면, 상기 보호원판이 소정각도 회동하도록 구성하는 과제이다.
In addition, it is a problem to prevent the rotation of the protective disk, but when the protective disk is subjected to the rotational pressure, the protective disk is rotated by a predetermined angle.

상기 목적을 달성하기 위한 본 발명의 예초기용 보호원판의 지지장치는 회전하는 칼날(8) 하부에 방사상으로 날개(A)가 형성된 보호원판(10)과, 상기 보호원판(10) 중심부에 외륜을 고정시킨 베어링(11)과, 상기 베어링(11)의 내륜을 상기 칼날 하부에 돌출된 회전축 끝단에 형성된 수나사부에 삽입하고 나사(13)체결하여 상기 보호원판(10)을 고정시키는 동력 예초기에 있어서,
The support device of the lawn mower protection disk of the present invention for achieving the above object is a protective disk (10) formed with a blade (A) radially on the lower blade (8) to rotate, and the outer ring in the center of the protective disk (10) In the power lawn mower for fixing the protective disk 10 by inserting the fixed bearing 11 and the inner ring of the bearing 11 to the male screw formed at the end of the rotating shaft protruding from the blade and fastening the screw 13 ,

방사선상으로 날개(A)를 형성한 보호원판(10)과, 상기 보호원판(10) 중앙을 커버하는 커버판(15)과, 상기 커버판(15) 저면 중앙에 지지부재(16) 일측이 지지되되 상기 커버판(15)이 헛돌도록 지지되고, 상기 지지부재(16) 타측은 상기 보호원판(10) 저면을 지나 작업대(17)에 고정되는 체결밴드(18)에 지지되며,One side of the support member 16 is provided with a protective disk 10 having a wing A formed in a radial shape, a cover plate 15 covering the center of the protective disk 10, and a center of the bottom surface of the cover plate 15. Is supported, but the cover plate 15 is supported so as to be idle, the other side of the support member 16 is supported by a fastening band 18 fixed to the work table 17 through the bottom surface of the protective disk 10,

상기 지지부재(16)에 가로막혀 상기 보호원판(10)이 회동하지 못하도록 상기 보호원판(10)에 상기 지지부재(16)에 스톱되는 스톱부분(19)을 형성하되, 상기 스톱부분(19)은 상기 보호원판(10)이 소정각도 회동하면 상기 지지부재(16)로부터 이탈되도록 구성된다.
The stop member 19 is formed on the support member 10 so as to be blocked by the support member 16 so as not to rotate, and the stop member 19 is stopped on the support member 16. The protective disk 10 is configured to be separated from the support member 16 when the predetermined angle rotates.

상기 스톱부분(19)은 보호원판(10)의 원호방향에 지지부재(16)에 스톱되는 복수의 돌기(20)로 형성함을 특징으로 한다.
The stop portion 19 is characterized in that it is formed of a plurality of projections 20 to be stopped by the support member 16 in the arc direction of the protective disk (10).

본원에서 스톱부분(19)은 보호원판(10)을 지지부재(16)가 간섭을 받게하여 상기 보호원판(10)이 회동하지 못하도록 지지하되, 그 보호원판(10)이 큰 타격을 받아 회전압력을 받게되면 소정각도 회전하도록 구성된다.
The stop portion 19 in the present application supports the protective disk 10 so that the support member 16 is not interfered with the protection disk 10 so as not to rotate, the protective disk 10 is subjected to a large blow to the rotational pressure When received, it is configured to rotate a predetermined angle.

상기 보호원판을 지지부재에 고정수단으로 고정하는 구성이 아님을 밝혀둔다. Note that it is not configured to fix the protective disk to the support member by fixing means.

구성에서 살펴본 바와 같이, 지지부재은 상기 보호원판이 회동하지 못하도록 상기 보호원판에 상기 지지부재에 스톱되는 스톱부분를 형성하되, 상기 스톱부분은 상기 보호원판이 소정각도 회동하면 상기 지지부재로부터 이탈되도록 구성하였다. As seen in the configuration, the support member is formed in the protective disk to the stop stop to the support member to prevent the protection disk is rotated, the stop portion is configured to be separated from the support member when the protective disk is rotated by a predetermined angle .

이와 같이 구성함으로서 안전한 보호원판이 소비자에게 제공되는 것이다.By configuring in this way, a safe protective disc is provided to the consumer.

더욱 상세한 효과는 구체적인 내용에서 상세히 수록된다.More detailed effects are detailed in the detailed description.

제 1도는 본 발명의 예초기용 칼날 보호원판의 지지장치의 사시도,
제 2도는 본 발명의 예초기용 칼날 보호원판의 지지장치를 저면에서 본 사시도,
제 3도는 본 발명의 예초기용 칼날 보호원판의 지지장치의 분해사시도,
제 4도는 본 발명의 예초기용 칼날 보호원판의 지지장치의 일부 분해사시도,
제 5도는 본 발명의 예초기용 칼날 보호원판의 지지장치의 절개 사시도,
제 6도는 본 발명의 예초기용 칼날 보호원판의 지지장치의 실시예의 사시도,
제 7도의 가), 나)는 실시예로서 스톱부분의 진행상태를 보인 참고도.
제 8,9도는 본 발명의 또다른 실시예의 사시도,1 is a perspective view of a support device for a blade protection disk for a lawn mower of the present invention,
Figure 2 is a perspective view of the support device of the blade protection disk for the lawn mower of the present invention from the bottom,
3 is an exploded perspective view of the support device of the blade protection disk for mowing of the present invention,
Figure 4 is an exploded perspective view of a part of the support device of the blade protection disk for mowing of the present invention,
5 is a perspective view of the cutting device of the support device of the blade protection disc for mowing of the present invention,
6 is a perspective view of an embodiment of a support device for a blade protection disk for a lawn mower of the present invention,
Figure 7 a), b) is a reference diagram showing the progress of the stop portion as an example.
8, 9 is a perspective view of another embodiment of the present invention,

이하 첨부된 도면을 참조하면서 본 발명의 바람직한 예초기용 보호원판의 지지장치를 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail a support device for a protective disk for lawn mowers of the present invention.

도면을 참조하면, 본 발명은 회전 칼날(8) 하부에 방사선상으로 날개가 형성된 보호원판(10)과, 상기 보호원판(10) 중심부에 외륜을 고정시킨 베어링(11)과, 상기 베어링(11)의 내륜을 상기 회전 칼날(8) 하부에 돌출된 회전축(12) 끝단에 형성된 수나사부에 삽입하고 나사(13)체결하여 상기 보호원판(20)을 고정시키는 동력 예초기에 있어서,
Referring to the drawings, the present invention, the lower blade of the rotary blade (8) is formed radially radially, the bearing 11 fixed to the outer ring in the center of the protective disk 10, and the bearing 11 In the power lawn mower for inserting the inner ring of the inner side of the rotary blade (8) to the male screw formed on the end of the rotary shaft 12 protruding from the lower end of the rotary blade (8) and fastening the screw 13 to secure the protective disk (20),

방사선상으로 날개를 형성한 보호원판(10)과, 상기 보호원판(10) 중앙을 커버하는 커버판(15)과, 상기 커버판(15) 저면 중앙에 지지부재(16) 일측이 지지되되 상기 커버판(15)이 헛돌도록 지지되고, 상기 지지부재(16) 타측은 상기 보호원판(10) 저면을 지나 작업대(17)에 고정되는 체결밴드(18)에 지지된다.
One side of the support member 16 is supported on the protective disk 10 and the cover plate 15 to cover the center of the protective disk 10, the cover plate 15 and the center of the bottom surface of the cover plate 15 The cover plate 15 is supported so as to be idle, and the other side of the support member 16 is supported by the fastening band 18 fixed to the work table 17 through the bottom surface of the protective disc 10.

그리고,상기 지지부재(16)에 가로막혀 상기 보호원판(10)이 회동하지 못하도록 상기 보호원판(10)에 상기 지지부재(16)에 스톱되는 스톱부분(19)를 형성하되, 상기 스톱부분(19)은, 상기 보호원판(10)이 소정각도 회동하면 상기 지지부재(16)로부터 이탈되도록 구성된다.
And, the stop member (19) is stopped on the support member 16 in the protective disk 10 so as to prevent the protection disk 10 from being rotated by the support member 16, the stop portion ( 19 is configured to be separated from the support member 16 when the protective disk 10 is rotated by a predetermined angle.

이와 같이 구성함으로서 모터(B)가 회동하면, 모터(B)에 의해 회동하는 회동축(12)에 고정된 회전 칼날(8)이 회동하고, 그 회동으로 잡초가 절단되는데 그 절단 과정에 잡초가 아닌 딱딱한 이물질(나무가지,돌 포함)을 회전 칼날(8)이 타격하게되면 그 나무(100)가 절단되지 않고 순간적으로 회전 칼날(8)과 함께 회전방향으로 회전하게 된다(참조 도6).
In this configuration, when the motor B rotates, the rotary blade 8 fixed to the rotation shaft 12 rotated by the motor B rotates, and the weeds are cut by the rotation. When the rotary blade 8 hits a hard foreign matter (including branches and stones), the tree 100 is not cut and is instantaneously rotated together with the rotary blade 8 in the rotation direction (see FIG. 6).

이때 도시한 바와 같이 회전 칼날(8)에 밀린 나무(100)가 날개를 타격하는데 이때 날개가 고정되어 있게되면, 날개가 파손되거나, 회전 칼날(8)이 파손되기 마련이다.At this time, as shown, the tree 100 pushed by the rotary blade 8 strikes the blade, but if the blade is fixed at this time, the blade is broken or the rotary blade 8 is broken.

만약, 회전 칼날(8)이 부러진다면, 그 부러진 회전 칼날이 비산된다. 그로인해 작업자 방향으로 날아오면 그 피해는 예상할 수 없다.
If the rotary blade 8 is broken, the broken rotary blade is scattered. As a result, when flying in the direction of the worker, the damage is unpredictable.

그러나 본원은 상기와 같이 이물질(100)이 날개(A)를 타격할 경우 회전원판(10)이 소정각도 회전하게 된다.
However, in this application, when the foreign material 100 hits the wing A as described above, the rotation disc 10 is rotated by a predetermined angle.

그 동작을 설명하기로 한다. 이물질에 타격을 받게 되면 지지부재(16)에 The operation will be described. When the foreign matter is hit by the support member (16)

회전하지 못하도록 스톱된 보호원판(10)이 소정 각도 회동을 하게된다. The protection disc 10 stopped to rotate does a predetermined angle rotation.

즉, 도시한 도 7의 가), 나)와 같이 보호원판(10)이 큰 타격을 받게되면, 지지부재(16)가 스톱부분(19)을 지지하지 못하게 되고, 그로 인해 보호원판(10)이 소정각도 회전하는 것이다
That is, when the protective disc 10 is hit hard as shown in FIG. 7 a) and b), the support member 16 does not support the stop portion 19, thereby the protective disc 10 This predetermined angle is to rotate

여기서 참고, 아무리 딱딱한 재질이라 하더라도 지지부재와 보호원판은 탄성력이 있기 마련이다. 그렇기 때문에 보호원판이 회전하면서 타격을 받게되면 스톱부분이 타격을 받게되고 그로인해 스톱부분이 지지부재로부터 이탈하려는 작용을 받게된다. 그렬경우 보호원판과 지지부재는 서로 틈새가 생겨 그 틈새사이로 스톱부분이 이동하는 것이다. 그러기 때문에 보호원판이 소정각도 회동하는 것이다.
Here, even the hard material, even if the support member and the protective disc is provided with an elastic force. Therefore, if the protection disk is rotated and hit, the stop part is hit, and thus the stop part is acted to move away from the supporting member. In this case, the protective disc and the supporting member have a gap therebetween, and the stop portion is moved between the gaps. For this reason, the protective disk rotates at a predetermined angle.

여기서 상기 스톱부분이 파손될 수 있다. 즉 파손되더라도 보호원판과 회전칼날은 파손되지 않는다. 그러므로 안전한 것이다.
Here, the stop portion may be broken. That is, even if it is damaged, the protective disk and the rotary blade are not damaged. Therefore it is safe.

그리고, 스톱부분(19)은 보호원판(10)의 원호방향에 지지부재(16)에 스톱되는 복수의 돌기(20)로 형성함을 특징으로 한다.
And, the stop portion 19 is characterized in that it is formed of a plurality of projections 20 to be stopped by the support member 16 in the arc direction of the protective disk (10).

특히 돌기(20)가 보호원판(10) 저면에 형성되되 저면에서 하단을 향해 돌출되어 있으며, 그 돌기 끝단은 반원형이다.
In particular, the protrusion 20 is formed on the bottom surface of the protective disc 10, protrudes from the bottom toward the bottom, the end of the projection is semi-circular.

그래서 지지부재(16)는 상기 돌기(20)의 반원형 측면을 가로막고 있는 상태가 된다.Thus, the supporting member 16 is in a state of blocking the semicircular side surface of the protrusion 20.

이 상태에서 보호원판(10)에 회전하려는 강한 충격이 가해지면, 지지부재(16)는 돌기(20)를 가로막지 못하고 결국 도시한 도 7과 같이 지지부재(16)로부터 돌기(20)가 이탈하게 된다.
In this state, if a strong impact is applied to the protection disk 10 to rotate, the support member 16 does not block the projection 20, and eventually the projection 20 is separated from the support member 16 as shown in FIG. Done.

마지막으로, 도시한 8내지 9도의 또다른실시예와 같이, 스톱부분(19)은 보호원판(10)에 걸림부(10')를 형성하고, 지지부재(16)는 상기 걸림부(10')에 걸림되도록 걸림부분(16')을 형성하되, 보호원판(10)이 소정각도 회전되면 상기 걸림부(10')와 상기 걸림부분(16')이 서로 걸림이 해제되는 구성이다.
Finally, as in another embodiment of 8 to 9 degrees shown, the stop portion 19 forms a locking portion 10 'on the protective disc 10, and the supporting member 16 has the locking portion 10'. The engaging portion 16 'is formed to be caught, but when the protective disc 10 is rotated by a predetermined angle, the engaging portion 10' and the engaging portion 16 'are released from each other.

A : 날개 B : 모터
8 : 칼날 10 : 보호원판
11 : 베어링 13 : 나사
15 : 커버판 16 : 지지부재
17 : 작업대 18 : 체결밴드
19 : 스톱부분 20 : 돌기
100 : 이물질A: wing B: motor
8: blade 10: protective disc
11 bearing 13 screw
15 cover plate 16 support member
17: workbench 18: fastening band
19: stop 20: projection
100: foreign matter

Claims (2)

회전하는 칼날(8) 하부에 방사상으로 날개(A)가 형성된 보호원판(10)과, 상기 보호원판(10) 중심부에 외륜을 고정시킨 베어링(11)과, 상기 베어링(11)의 내륜을 상기 칼날 하부에 돌출된 회전축 끝단에 형성된 수나사부에 삽입하고 나사(13)체결하여 상기 보호원판(10)을 고정시키는 동력 예초기에 있어서,

방사선상으로 날개(A)를 형성한 보호원판(10)과, 상기 보호원판(10) 중앙을 커버하는 커버판(15)과, 상기 커버판(15) 저면 중앙에 지지부재(16) 일측이 지지되되 상기 커버판(15)이 헛돌도록 지지되고, 상기 지지부재(16) 타측은 상기 보호원판(10) 저면을 지나 작업대(17)에 고정되는 체결밴드(18)에 지지되며,
상기 지지부재(16)에 가로막혀 상기 보호원판(10)이 회동하지 못하도록 상기 보호원판(10)에 상기 지지부재(16)에 스톱되는 스톱부분(19)을 형성하되, 상기 스톱부분(19)은 상기 보호원판(10)이 소정각도 회동하면 상기 지지부재(16)로부터 이탈되도록 구성됨을 특징으로 하는 예초기용 칼날 보호원판의 지지장치.
The protective disk 10 has a blade (A) radially formed under the rotating blade (8), the bearing 11 fixed to the outer ring in the center of the protective disk 10, and the inner ring of the bearing 11 In the power mower for inserting the male screw portion formed at the end of the rotary shaft protruding to the lower blade and fastening the screw 13 to secure the protective disk 10,

One side of the support member 16 is provided with a protective disk 10 having a wing A formed in a radial shape, a cover plate 15 covering the center of the protective disk 10, and a center of the bottom surface of the cover plate 15. Is supported, but the cover plate 15 is supported so as to be idle, the other side of the support member 16 is supported by a fastening band 18 fixed to the work table 17 through the bottom surface of the protective disk 10,
The stop member 19 is formed on the support member 10 so as to be blocked by the support member 16 so as not to rotate, and the stop member 19 is stopped on the support member 16. The support device of the blade protection disc for the lawn mower, characterized in that configured to be separated from the support member 16 when the protection disc 10 rotates by a predetermined angle.
제 1항에 있어서
스톱부분(19)은 보호원판(10)에 걸림부(10')를 형성하고, 지지부재(16)는 상기 걸림부(10')에 걸림되도록 걸림부분(16')을 형성하되, 보호원판(10)이 소정각도 회전되면 상기 걸림부(10')와 상기 걸림부분(16')이 서로 걸림이 해제되는 구성함을 특징으로 하는 예초기용 칼날 보호원판의 지지장치.The method of claim 1, wherein
The stop portion 19 forms a catching portion 10 'on the protective disc 10, and the support member 16 forms a catching portion 16' so as to be caught by the catching portion 10 '. Support device for a blade protection disk for mowing blade, characterized in that the locking portion 10 'and the locking portion (16') is released from each other when the rotation is a predetermined angle (10).
KR1020120057587A 2012-05-30 2012-05-30 Protective plate support device for bush cutter KR101186790B1 (en)

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Application Number Priority Date Filing Date Title
KR1020120057587A KR101186790B1 (en) 2012-05-30 2012-05-30 Protective plate support device for bush cutter
PCT/KR2012/010632 WO2013180363A1 (en) 2012-05-30 2012-12-07 Device for supporting disc-shaped guard for mower blades

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Application Number Priority Date Filing Date Title
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200292421Y1 (en) 2002-07-05 2002-10-19 정동영 Mower cutter blade protector
KR100957627B1 (en) 2009-10-26 2010-05-13 양안종 Bearing uint and protect cover for brush cutter using that
JP2012055296A (en) 2010-09-07 2012-03-22 Maehama Kogyo Co Ltd Blade edge protector for mower

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1212166B (en) * 1987-12-31 1989-11-08 Consiglio Nazionale Ricerche BLADE PROTECTION UNIT FOR A ROTARY BLADE BRUSH CUTTER AND BRUSHCUTTER TOOL USING SUCH GROUP

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200292421Y1 (en) 2002-07-05 2002-10-19 정동영 Mower cutter blade protector
KR100957627B1 (en) 2009-10-26 2010-05-13 양안종 Bearing uint and protect cover for brush cutter using that
JP2012055296A (en) 2010-09-07 2012-03-22 Maehama Kogyo Co Ltd Blade edge protector for mower

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