JP2008125509A - Modified circular saw blade of shoulder type and handheld type bush cutter - Google Patents

Modified circular saw blade of shoulder type and handheld type bush cutter Download PDF

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Publication number
JP2008125509A
JP2008125509A JP2006341925A JP2006341925A JP2008125509A JP 2008125509 A JP2008125509 A JP 2008125509A JP 2006341925 A JP2006341925 A JP 2006341925A JP 2006341925 A JP2006341925 A JP 2006341925A JP 2008125509 A JP2008125509 A JP 2008125509A
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Japan
Prior art keywords
blade
type
saw blade
disc
grass
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.)
Pending
Application number
JP2006341925A
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Japanese (ja)
Inventor
Masaru Itabane
優 板羽
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Individual
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Individual
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Publication date
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Priority to JP2006341925A priority Critical patent/JP2008125509A/en
Publication of JP2008125509A publication Critical patent/JP2008125509A/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
    • A01D34/73—Cutting apparatus

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

Abstract

<P>PROBLEM TO BE SOLVED: To solve problems in which tip of the blade is broken and cutting ability is remarkably reduced and operation becomes difficult when the blade is made to collide with stones, soil, etc., during operation, though a metal disc blade body type is frequently used in a shoulder type and handheld type bush cutter and the metal disc blade body type has sharpened blade tip and rotates a disc and cut grasses. <P>SOLUTION: The present device is a technique for interposing grass between a V-shaped part of a disc saw blade in a place of a cutting blade body and beating and tearing the grass as shown in the figure. The outer periphery of the disc is horizontal and since a part contacting with stones, soil, etc., becomes a horizontal part, endurance of the blade is increased. Though the blade body is scarcely abraded, because the outer periphery of one saw blade has a wide width of 10 mm, it is made possible for saw blade to return to original state by polishing the blade body when the blade is abraded. As the maximum characteristic of the saw blade, grass-reaping operation can be carried out without fearing stones or soil. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は肩掛け式及び手持ち式草刈り払い機に関する技術である。  The present invention relates to a technique relating to a shoulder-type and a hand-held type mower.

従来の草刈り払い機鉄円板式には直径２３ｃｍ〜２５ｃｍほどがある。刃体の形状は多種多様であるが、いずれも刃の先端を尖らせ刃体を回転させ草を刈り取るものである。  A conventional mower iron disk type has a diameter of about 23 cm to 25 cm. The shape of the blade body is various, but all of them cut the grass by sharpening the tip of the blade and rotating the blade body.

発明が解決しようとする課題Problems to be solved by the invention

現在では切断刃の先端部に硬い金属（チップ）を付けた物が主流となっているが、それでも石や土に接触した場合、刃先が壊れ作業能率がいちじるしく下がることがある。石や土に接触しても作業能率が下がらない刃体を発明することとした。  At present, the mainstream is the one with a hard metal (tip) attached to the tip of the cutting blade. However, when it comes into contact with stone or earth, the cutting edge can be broken and the work efficiency can be significantly reduced. It was decided to invent a blade that does not reduce work efficiency even when it comes into contact with stone or soil.

課題を解決するための手段Means for solving the problem

本考案は円盤の円周内に切断刃を低刃（符号▲１▼）、中刃（符号▲２▼）、高刃（符号▲３▼）の三組を八ヶ所作り、切断方式を変更した。  The present invention makes three sets of cutting blades within the circumference of the disk: low blade (sign 1), middle blade (code 2), and high blade (code 3), and changes the cutting method. did.

刃体の形状は図面で示した通り、高刃から低刃間の傾斜を長く深くし、刃と刃の間へ草を入り込みやすくし、刃の高さを三段階とした。  As shown in the drawing, the shape of the blade body was set so that the slope between the high blade and the low blade was long and deep, making it easier for grass to enter between the blades and the blade height in three stages.

切断部分は刃の先端ではなく、刃と刃の間のＶ字部（符号▲４▼）へ草を挟ませ草を叩き千切る技術である。  The cutting part is not a tip of the blade, but a technique in which the grass is sandwiched between V-shaped portions (reference numeral (4)) between the blades and the grass is slashed.

切断時、刃体円盤が高刃から低刃の傾斜にそって草が吸い込まれる様に入り込む。
この作用によって切断が可能になるのである。At the time of cutting, the blade disk enters the grass so that the grass is sucked along the inclination from the high blade to the low blade.
This action enables cutting.

それぞれ高刃、中刃、低刃の外周部（符号▲５▼）は水平で１０ｍｍ前後とし、刃の回転時、石や土などに接触するのは、刃の外周部なので、切断能力が下がることはないのである。  The outer peripheries (symbol (5)) of the high blade, middle blade, and low blade are about 10 mm horizontally, and when the blade rotates, it is the outer periphery of the blade that touches the stone or earth, so the cutting ability is reduced. There is nothing.

長期使用し、刃体の外周部が磨り減り、刃体の深さが浅くなった場合は、刃体を研磨し元の形状にすることが可能である。円盤の直径が２０ｃｍほどになるまで使用可能である。  When used for a long time, the outer peripheral portion of the blade body is worn down and the depth of the blade body becomes shallow, the blade body can be polished to the original shape. It can be used until the diameter of the disk reaches about 20 cm.

発明の効果The invention's effect

本考案により、草刈り払い機の刃先が石や土などの接触で破損することを恐れず、草刈り払い作業を実施することが可能になるのである。  According to the present invention, it is possible to carry out the mowing work without fear of the blade edge of the mowing machine being damaged by contact with stones or earth.

耐久性は、現在使用されている金属盤刈り払い体の１０枚以上の価値があると考えられる。  Durability is considered to be worth more than 10 of the currently used metal plate mowers.

本考案、異形状丸鋸刃体の拡大図である。  It is an enlarged view of this invention and an irregular-shaped circular saw blade body. 本考案、異形状丸鋸刃体の全体図である。  BRIEF DESCRIPTION OF THE DRAWINGS FIG.

符号の説明Explanation of symbols

▲１▼ 低刃
▲２▼ 中刃
▲３▼ 高刃
▲４▼ Ｖ字部
▲５▼ 刃の外周部
▲６▼ 草刈り払い機本体への取付け穴
▲７▼ 刃体回転方向▲ 1 ▼ Low blade ▲ 2 ▼ Middle blade ▲ 3 High blade ▲ 4 ▼ V-shaped portion ▲ 5 ▼ Blade outer periphery ▲ 6 ▼ Mounting hole to mower body ▲ 7 ▼ Blade rotation direction

Claims (2)

肩掛け式及び手持ち式ディスク式金属丸鋸刃において石や土などに接触しても切断能力が下がらない技術。  A technology that does not lower the cutting ability even if it touches stone or earth in a shoulder-type and hand-held disc-type metal circular saw blade. 肩掛け式及び手持ち式ディスク式金属丸鋸刃において刃体（回転円盤）の構図。  Composition of blade body (rotating disk) in shoulder-type and hand-held disc-type metal circular saw blades.
JP2006341925A 2006-11-21 2006-11-21 Modified circular saw blade of shoulder type and handheld type bush cutter Pending JP2008125509A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006341925A JP2008125509A (en) 2006-11-21 2006-11-21 Modified circular saw blade of shoulder type and handheld type bush cutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006341925A JP2008125509A (en) 2006-11-21 2006-11-21 Modified circular saw blade of shoulder type and handheld type bush cutter

Publications (1)

Publication Number Publication Date
JP2008125509A true JP2008125509A (en) 2008-06-05

Family

ID=39551970

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006341925A Pending JP2008125509A (en) 2006-11-21 2006-11-21 Modified circular saw blade of shoulder type and handheld type bush cutter

Country Status (1)

Country Link
JP (1) JP2008125509A (en)

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