JP2585384Y2 - Rotary blade for mowing - Google Patents
Rotary blade for mowingInfo
- Publication number
- JP2585384Y2 JP2585384Y2 JP1993003387U JP338793U JP2585384Y2 JP 2585384 Y2 JP2585384 Y2 JP 2585384Y2 JP 1993003387 U JP1993003387 U JP 1993003387U JP 338793 U JP338793 U JP 338793U JP 2585384 Y2 JP2585384 Y2 JP 2585384Y2
- Authority
- JP
- Japan
- Prior art keywords
- blade
- cutting blade
- mowing
- rotary blade
- 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 - Lifetime
Links
Landscapes
- Harvester Elements (AREA)
Description
【0001】[0001]
【産業上の利用分野】本考案は、電動草刈り機に使用す
る回転刃に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary blade used for an electric mower.
【0002】[0002]
【従来の技術】土手、畔、山林の下刈り等に使用される
電動草刈り機は、回転刃を備え、回転刃の回転で草を刈
るようにしており、回転刃は基本的に円板の外周部に円
板の端縁に焼入れした普通刃や超硬チップ刃を形成した
ものが知られている。また草刈り刃はその作業中に石等
とも接触して強い衝撃を受けることがあるので、それに
よって刃の破損が生じないように適宜な対策が必要であ
る。2. Description of the Related Art An electric mower used for mowing a bank, a shore, or a forest is provided with a rotary blade so that the grass is cut by rotating the rotary blade. There are known those in which a normal blade or a carbide tip blade formed by quenching the edge of a disc at the portion is used. Also, the mowing blade may come into contact with stones or the like during the work and receive a strong impact.
【0003】従来の前記対策としては、超硬チップ刃を
使用したものでは、実開昭62−136131号公報に
記載されているように超硬チップの刃板への取り付け面
を傾斜させてたり、又は実公平3−23055号公報に
記載されているように超硬チップの刃板への取り付け角
度を特定の角度として、衝撃を受けた際のチップの脱落
を防止する手段が提案されている。As a countermeasure against the above-mentioned problem, in the case of using a carbide tip blade, as described in Japanese Utility Model Application Laid-Open No. 62-136131, the mounting surface of the carbide tip to the blade plate is inclined. Alternatively, as described in Japanese Utility Model Publication No. 3-23055, means for preventing the chip from falling off when receiving an impact by setting the angle of attachment of the carbide tip to the blade plate at a specific angle has been proposed. .
【0004】また実公平1−37379号公報には刃先
の外周位置と約一致するガード部を備えた草刈り刃が開
示されている。[0004] Japanese Utility Model Publication No. 1-337379 discloses a mowing blade provided with a guard portion which approximately coincides with the outer peripheral position of the cutting edge.
【0005】[0005]
【考案が解決しようとする課題】前記の草刈り用回転刃
の破損対策は、チップ刃のものではチップ刃に直接衝撃
を受けた際の対策であって、強い衝撃に際しては何等の
対策とはなっていない。The above-mentioned measures against breakage of the mowing rotary blade are measures against direct impact on the tip blade with a tip blade, and are no measures against strong impact. Not.
【0006】また回転刃板の外周方向にガード部を設け
る手段は、回転刃の刈り取り進行方向における小石等の
巻き込みを防止するのみで、回転刃の地面側への接近に
よつての小石等の巻き込みは防止できていない。而も小
石等の巻き込みは地面側への接近の際の方が多発する。
そこで本考案は回転刃の軸方向のガード部を備えた草刈
り機用回転刃を提案したものである。The means for providing a guard portion in the outer peripheral direction of the rotary blade plate only prevents the pebbles or the like from being caught in the direction of the cutting progress of the rotary blade, and prevents the pebbles or the like from approaching the ground side of the rotary blade. Entanglement has not been prevented. Entanglement of pebbles and the like occurs more frequently when approaching the ground side.
Therefore, the present invention proposes a rotary blade for a mower equipped with a guard portion in the axial direction of the rotary blade.
【0007】[0007]
【課題を解決する手段】本考案に係る草刈り機用回転刃
は、円形刃板の外周部に凹部を間欠的に形成し、凹部の
回転方向に対面する縁部に切断刃部を設けると共に、前
記切断刃部の対抗凹部縁を使用時に下方に位置する側の
前記切断刃部の最下面以上に突出せしめてガード部を形
成したことを特徴とするものである。A rotary blade for a mower according to the present invention has a circular blade plate in which a concave portion is formed intermittently on an outer peripheral portion, and a cutting blade portion is provided on an edge portion facing the rotational direction of the concave portion. A guard portion is formed by protruding the edge of the opposing concave portion of the cutting blade portion above the lowermost surface of the cutting blade portion located on the lower side during use.
【0008】[0008]
【作用】回転刃を回転させながら草叢に差し込むと、円
形刃板の凹部に入り込んだ草は切断刃部で切断される。
従って回転刃の進行で草が刈り取られるものである。When the rotating blade is inserted into the grass while rotating, the grass that has entered the concave portion of the circular blade plate is cut by the cutting blade.
Therefore, the grass is cut by the advance of the rotary blade.
【0009】また回転刃を地面に接近させて小石等と接
触しても、切断刃部よりも下方のガード部と接触し、ガ
ード部によって下方に押しやられ、切断刃部と接触する
ことがないので、切断刃部の損傷が生じない。Further, even when the rotating blade approaches the ground and comes into contact with pebbles, the rotating blade comes into contact with the guard portion below the cutting blade portion, is pushed downward by the guard portion, and does not come into contact with the cutting blade portion. Therefore, damage to the cutting blade does not occur.
【0010】[0010]
【実施例】次に本考案の実施例について説明する。本考
案に係る草刈り機用回転刃は、円形刃板Aの中心に適宜
な回転軸装着部(透孔1)を設け、外周部には凹部2を
間欠的に形成し、前記の凹部2の縁部に切断刃部3とガ
ード部4を設けたもので、切断刃部3は凹部2の回転方
向に対面する縁部に超硬チップ刃を蝋付けして形成して
なる。ガード部4は、前記切断刃部3と対抗する凹部縁
を使用時に下方に位置する側の前記切断刃部の最下面以
上に突出せしめて形成したものである。Next, an embodiment of the present invention will be described. The rotary blade for a mower according to the present invention is provided with an appropriate rotary shaft mounting portion (through hole 1) at the center of the circular blade plate A, and a concave portion 2 is formed intermittently on the outer peripheral portion. The cutting blade portion 3 and the guard portion 4 are provided in the portion, and the cutting blade portion 3 is formed by brazing a carbide tip blade to an edge of the concave portion 2 facing the rotation direction. The guard portion 4 is formed by projecting a concave edge opposed to the cutting blade portion 3 above the lowermost surface of the cutting blade portion located on the lower side during use.
【0011】而して前記回転刃(刃板A)を草刈り機に
装着し、草刈り作業に供するもので、回転刃を回転させ
ながら草叢に差し込むと、円形刃板Aの凹部2に入り込
んだ草は切断刃部3で切断されることになり、回転刃
(刃板A)の移動操作によって所望の草刈りが実現でき
るものである。The rotary blade (blade plate A) is mounted on a mowing machine and used for mowing. When the rotary blade is inserted into the grass while rotating, the grass that has entered the concave portion 2 of the circular blade plate A is removed. The cutting is performed by the cutting blade portion 3, and desired mowing can be realized by moving the rotary blade (blade plate A).
【0012】更に本考案の回転刃(刃板A)はガード部
4を具備しているので、草刈り作業中に回転刃(刃板
A)を地面に接近させて小石等と接触しても、切断刃部
3よりも下方のガード部4が小石等と接触し、ガード部
4によって小石等が地面側に押しやられ、小石等と切断
刃部3とが接触することがないので、切断刃部3の損傷
が生じ難い。Further, since the rotary blade (blade plate A) of the present invention has the guard portion 4, even if the rotary blade (blade plate A) approaches the ground and comes into contact with pebbles during mowing work. Since the guard portion 4 below the cutting blade portion 3 comes into contact with pebbles and the like, the pebbles and the like are pushed to the ground side by the guard portion 4, and the pebbles and the like do not come into contact with the cutting blade portion 3, so the cutting blade portion 3 is hardly damaged.
【0013】尚本考案は前記実施例のように超硬チップ
を使用した切断刃部を備えたものに限定されるものでは
なく、通常の焼入れ刃で切断刃部を形成したものでも良
く、またガード部も切断刃部の外周部と一致するまでに
外周方向に突出させても良い。It should be noted that the present invention is not limited to the one having a cutting blade portion using a carbide tip as in the above embodiment, but may be one having a cutting blade portion formed by a normal hardening blade. The guard portion may also protrude in the outer peripheral direction until it coincides with the outer peripheral portion of the cutting blade portion.
【0014】[0014]
【考案の効果】以上のように本考案は、回転刃の軸方向
に突出せしめたガード部を設けたことを特徴とするもの
で、使用時の地面との接近による小石等の巻き込みを防
止し、切断刃部の損傷を防止できたものである。[Effects of the Invention] As described above, the present invention is characterized in that a guard portion protruding in the axial direction of the rotary blade is provided, thereby preventing pebbles and the like from being entangled by approaching the ground during use. Thus, damage to the cutting blade can be prevented.
【図1】本考案の実施例の一部正面図。FIG. 1 is a partial front view of an embodiment of the present invention.
【図2】同要部斜視図。FIG. 2 is a perspective view of the main part.
2 凹部 3 切断刃部 4 ガード部 2 recess 3 cutting blade 4 guard
Claims (1)
し、凹部の回転方向に対面する縁部に切断刃部を設ける
と共に、前記切断刃部の対抗凹部縁を使用時に下方に位
置する側の前記切断刃部の最下面以上に突出せしめてガ
ード部を形成したことを特徴とする草刈り用回転刃。1. A concave portion is intermittently formed in an outer peripheral portion of a circular blade plate, a cutting blade portion is provided at an edge portion facing the rotating direction of the concave portion, and an opposing concave edge of the cutting blade portion is lowered downward when used. A rotary blade for mowing, wherein a guard portion is formed by projecting more than the lowermost surface of the cutting blade portion on the side where the cutting blade portion is located.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1993003387U JP2585384Y2 (en) | 1993-01-12 | 1993-01-12 | Rotary blade for mowing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1993003387U JP2585384Y2 (en) | 1993-01-12 | 1993-01-12 | Rotary blade for mowing |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0655322U JPH0655322U (en) | 1994-08-02 |
JP2585384Y2 true JP2585384Y2 (en) | 1998-11-18 |
Family
ID=11555956
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1993003387U Expired - Lifetime JP2585384Y2 (en) | 1993-01-12 | 1993-01-12 | Rotary blade for mowing |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2585384Y2 (en) |
-
1993
- 1993-01-12 JP JP1993003387U patent/JP2585384Y2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0655322U (en) | 1994-08-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |