JPS6026582Y2 - Brush cutter blade - Google Patents

Brush cutter blade

Info

Publication number
JPS6026582Y2
JPS6026582Y2 JP14742680U JP14742680U JPS6026582Y2 JP S6026582 Y2 JPS6026582 Y2 JP S6026582Y2 JP 14742680 U JP14742680 U JP 14742680U JP 14742680 U JP14742680 U JP 14742680U JP S6026582 Y2 JPS6026582 Y2 JP S6026582Y2
Authority
JP
Japan
Prior art keywords
blade
brush cutter
cutting blade
tip
cutting
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
JP14742680U
Other languages
Japanese (ja)
Other versions
JPS5769527U (en
Inventor
幸男 福本
Original Assignee
株式会社日光製作所
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 株式会社日光製作所 filed Critical 株式会社日光製作所
Priority to JP14742680U priority Critical patent/JPS6026582Y2/en
Publication of JPS5769527U publication Critical patent/JPS5769527U/ja
Application granted granted Critical
Publication of JPS6026582Y2 publication Critical patent/JPS6026582Y2/en
Expired legal-status Critical Current

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Description

【考案の詳細な説明】 本案は畦、土手、溝等の雑草、山林の下刈りや笹刈りな
どを行なう為に用いられる第1図に示すような刈払機に
用いる切刃に関する。
[Detailed Description of the Invention] This invention relates to a cutting blade used in a brush cutter as shown in Fig. 1, which is used to cut weeds in ridges, banks, ditches, etc., as well as to cut undergrowth in mountain forests and cut bamboo grass.

この種切刃には、円板状の鋸身の周縁にタングステンカ
ーバイドチップなどのチップを取り付け、たいわゆるチ
ップソーが知られている。
This type of cutting blade is known as a so-called chip saw, in which a tip such as a tungsten carbide tip is attached to the periphery of a disc-shaped saw blade.

従来のチップソーは、土木用のチップソーと同じ刃先の
尖ったものを使用していたため、刈払機の性質上チップ
が石礫等、被切削物以外のものに当たる可能性が極めて
高く、万一刃先が石礫等に当った場合、チッピングを起
こしたり割れたりして破損する危険性があった。
Conventional chip saws use the same sharp blades as chip saws for civil engineering, so due to the nature of brush cutters, there is an extremely high possibility that the chips will hit stones or other objects other than the object to be cut. If it hits stones, etc., there is a risk of chipping or cracking, resulting in damage.

そこで本考案は、チップの刃先部を外方に突出せずに切
削刃の高位置より内側に位置せしめ、草刈中石礫等に当
ってもこれが刃先部には当らないようにしたものである
Therefore, in the present invention, the cutting edge of the tip does not protrude outward, but is positioned inward from the high position of the cutting blade, so that even if it hits stones and gravel while mowing, it will not hit the cutting edge.

以下本考案を実施例である添付の図面に基づいて説明す
る。
Hereinafter, the present invention will be explained based on the attached drawings, which are examples.

第2図、第3図は本考案刈払機用刈刃の平面図であって
、円板状の本体1の周縁部に多数のガレット部2,2を
等間隔に形威し、ガレット部2゜2の間の突出部にチッ
プ3,3をろう付し、切削刃を形威しである。
2 and 3 are plan views of the cutting blade for a brush cutter of the present invention, in which a large number of gullet parts 2, 2 are formed at equal intervals on the peripheral edge of a disc-shaped main body 1. Chips 3, 3 are brazed to the protruding portion between the angles 2 and 3 to form a cutting edge.

ところで、チップ3の刃先部3aは前下がりの傾斜とな
るように研削し、(傾斜角度α)刃先を刈刃の外周より
内側に位置せしめる。
Incidentally, the cutting edge portion 3a of the tip 3 is ground so as to be sloped downward toward the front (inclination angle α), and the cutting edge is positioned inside the outer periphery of the cutting blade.

そして該前下がり傾斜の始点である切削刃4の高位置部
より後方の背面4aは後下がりの傾斜(傾斜角度β)と
しである。
The back surface 4a behind the high position part of the cutting blade 4, which is the starting point of the forward downward inclination, is inclined backward downward (inclination angle β).

つまり切り込みであるガレット部2は中心線に対し回転
方向にやや前傾しであるため、切削刃自体も前傾してい
る。
In other words, since the gullet portion 2, which is the notch, is slightly inclined forward in the direction of rotation with respect to the center line, the cutting blade itself is also inclined forward.

従がってチップ3は中心線に対しやや前傾してろう付さ
れることになる。
Therefore, the chip 3 will be brazed slightly tilted forward with respect to the center line.

そしてチップ3の刃先部3aは少なくとも切削刃4の高
位部4bよりも内側に入り込むようにする。
The cutting edge portion 3a of the tip 3 is made to enter at least inside the higher portion 4b of the cutting blade 4.

従がって刃先角度自体は直角ないしやや鈍角となるであ
ろう。
Therefore, the cutting edge angle itself will be a right angle or a slightly obtuse angle.

切削刃4の背面4bは後下がりに傾斜させであるが、こ
の傾斜角度βはその延長線が次位のチップの刃面に延長
される程度の傾斜とする。
The back surface 4b of the cutting blade 4 is inclined backwardly, and the inclination angle β is such that its extension line extends to the blade surface of the next chip.

本考案刈刃を刈払機に用いた場合、小石などは切削刃4
の高位置4bないし背面4aに当ってはね飛ばされチッ
プ3の刃先3aには当らない。
When the mower blade of this invention is used in a brush cutter, pebbles etc. can be removed using the cutting blade 4.
The tip hits the high position 4b or the back side 4a of the chip 3 and is blown away, but does not hit the cutting edge 3a of the chip 3.

一方、草などは柔軟なためはね飛ばされずに、背面4a
に沿って次位のガレット部2に誘導され、チップ3で切
断される。
On the other hand, grass etc. are flexible and will not be blown away,
It is guided to the next gullet part 2 along the line and cut by the tip 3.

本案によれば、チップソーのチップが破損される可能性
を可及的に減少せしめ、従来から使用されている雑草と
り用の4枚刃あるいは8枚刃と同一作業条件で耐久力に
極めて優れたものとすることができる。
According to this proposal, the possibility of tip saw chips being damaged is reduced as much as possible, and the saw blades have extremely high durability under the same working conditions as the 4-blade or 8-blade blades used for weeding. can be taken as a thing.

【図面の簡単な説明】[Brief explanation of the drawing]

添付図面は本考案刈払機用刈刃の実施例を示すもので、
第1図は本案品を刈払機に取り付けた状態の斜視図。 第2図は刈刃のみの全体の平面図。第3図は第2図の一
部分のみの拡大図である。 1・・・・・・本体、2・・・・・・ガレット部、3・
・・・・・チップ、4・・・・・・切削刃、3a・・・
・・・刃先部、4a・・・・・・背面、4b・・・・・
・高位部。
The attached drawings show an example of the cutting blade for a brush cutter according to the present invention.
FIG. 1 is a perspective view of the product attached to a brush cutter. Figure 2 is a plan view of the entire cutting blade only. FIG. 3 is an enlarged view of only a portion of FIG. 2. 1...Main body, 2...Gullet part, 3.
...Chip, 4...Cutting blade, 3a...
...Blade tip, 4a... Back, 4b...
・High-ranking part.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 切削刃4にチップ3を取り付けたチップソーにおいて、
チップ3の刃先部3aを前下りとし、切削刃4の高位部
4bよりも内側に位置せしめるとともに、背面4bはそ
の延長線が次位のチップの刃面に延長される徳下がりの
傾斜面としたことを特徴とする刈払機用刈刃。
In a chip saw with a chip 3 attached to the cutting blade 4,
The cutting edge part 3a of the tip 3 is downward downward in the front and is positioned inside the high part 4b of the cutting blade 4, and the back side 4b is a downward sloped surface whose extension line extends to the cutting surface of the next tip. A brush cutter blade that is characterized by:
JP14742680U 1980-10-15 1980-10-15 Brush cutter blade Expired JPS6026582Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14742680U JPS6026582Y2 (en) 1980-10-15 1980-10-15 Brush cutter blade

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14742680U JPS6026582Y2 (en) 1980-10-15 1980-10-15 Brush cutter blade

Publications (2)

Publication Number Publication Date
JPS5769527U JPS5769527U (en) 1982-04-26
JPS6026582Y2 true JPS6026582Y2 (en) 1985-08-10

Family

ID=29506945

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14742680U Expired JPS6026582Y2 (en) 1980-10-15 1980-10-15 Brush cutter blade

Country Status (1)

Country Link
JP (1) JPS6026582Y2 (en)

Also Published As

Publication number Publication date
JPS5769527U (en) 1982-04-26

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