JP3170246B2 - Cutting blade - Google Patents
Cutting bladeInfo
- Publication number
- JP3170246B2 JP3170246B2 JP25665398A JP25665398A JP3170246B2 JP 3170246 B2 JP3170246 B2 JP 3170246B2 JP 25665398 A JP25665398 A JP 25665398A JP 25665398 A JP25665398 A JP 25665398A JP 3170246 B2 JP3170246 B2 JP 3170246B2
- Authority
- JP
- Japan
- Prior art keywords
- cord
- mounting
- outer peripheral
- disk
- cutting blade
- 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 - Fee Related
Links
Classifications
-
- 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
- A01D34/416—Flexible line cutters
- A01D34/4166—Mounting or replacement of the lines
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Harvester Elements (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、草等を含む回転刈払い
機に使用する刈刃体に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting blade used for a rotary brush cutter containing grass and the like.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】草刈り
機は、手持若しくは乗用の機械で、適宜な動力源を備
え、回転部に草刈り刃体を装着し、刃体の回転で草刈り
を行うものであり、刃体は、円盤の外周部分に刃を形成
したディスクタイプと、回転部よりナイロンコードを繰
り出してナイロンコードで刈り払いを行うコードタイプ
が多用されている。2. Description of the Related Art A mowing machine is a hand-held or riding machine having an appropriate power source, a mowing blade mounted on a rotating portion, and mowing by rotating the blade. There are many types of blade bodies, a disk type in which a blade is formed on an outer peripheral portion of a disk, and a cord type in which a nylon cord is fed out from a rotating part and cut off with a nylon cord.
【０００３】特にナイロンコード刃体を採用した場合に
は、建物周囲箇所、塀際、大木の根本等の草刈りを綺麗
に行うことができる利点がある。そしてナイロンコード
を採用した刈刃体におけるナイロンコードの止着手段と
しては、刈刃体本体内のリールに装着してコードを繰り
出す方式（特開平５−１６８３２８号他）が多用されて
いるが、コードの摩耗による取り替えが不便であり、ま
た草刈り効率を高めるためにコードの数を増加させよう
とすると、刃体自体が厚い構造となってしまい取り扱い
に不便である。[0003] In particular, when a nylon cord blade is used, there is an advantage that the grass around the building, near the fence, at the root of a large tree, etc. can be neatly cut. As a fastening means of the nylon cord in the cutting blade body adopting the nylon cord, a method of attaching to a reel in the cutting blade body and feeding out the cord (Japanese Patent Laid-Open No. 5-168328 and others) is often used. Replacement due to abrasion of the cord is inconvenient, and if the number of cords is increased in order to increase mowing efficiency, the blade itself has a thick structure, which is inconvenient to handle.
【０００４】また特開平７−１７７８１２号公報には、
円盤外周に設けた３個の円形突起の各隙間にコードを迂
回係止する手段が開示されている。しかしコードが抜け
ないようにしっかり装着するには、手間が掛かり、また
多数のコードを放射状にもうけようとしても限界があ
る。Japanese Patent Application Laid-Open No. 7-177812 discloses that
Means for detour locking the cord in each gap of three circular projections provided on the outer periphery of the disk is disclosed. However, it takes time and effort to securely attach the cord so that it does not come off, and there is a limit even if a large number of cords are to be radially formed.
【０００５】そこで本発明は、コードの数が多く、且つ
摩耗によるコードの取り替え装着が容易で、而も使用時
におけるコードの離脱を防止した新規な刈刃体を提案し
たものである。Therefore, the present invention proposes a new cutting blade body in which the number of cords is large, the cords can be easily replaced and mounted due to wear, and the cords are prevented from coming off during use.
【０００６】[0006]
【課題を解決するための手段】本発明に係る刈刃体は、
機器取付円盤と、カッター用ナイロンコードとからな
り、機器取付円盤が、中央に機器装着用透孔を穿設し、
外周部に放射状にして且つ近接して設けた複数対のコー
ド装着孔を形成し、対となっているコード装着孔の内周
側出口中間にコード折り返し突起を形成してなり、ナイ
ロンコードを、前記対の装着孔に外周側が端部となるよ
うにＵ状に挿着し、中間部分を突起に係止して逆Ｕ状に
迂回させて取付円盤とナイロンコードを一体化してなる
ことを特徴としたものである。A cutting blade body according to the present invention comprises:
It consists of a device mounting disk and a nylon cord for cutter, and the device mounting disk has a through hole for device mounting in the center,
A plurality of pairs of cord mounting holes provided radially and adjacently on the outer peripheral portion are formed, and a code return projection is formed in the middle of the inner peripheral side outlet of the pair of cord mounting holes, a nylon cord, The mounting disk and the nylon cord are integrated by being inserted into the U of the pair of mounting holes in a U-shape such that the outer peripheral side is an end, and the intermediate portion is engaged with the projection and is detoured in an inverted U shape. It is what it was.
【０００７】従って各対の装着孔毎にナイロンコードが
外部に張り出すことになり、多数の切り刃を備えた刈刃
体となるものである。而もナイロンコードは、装着孔に
挿通し突起部分で急角度カーブの折り返しとなるので、
コードを外部より引っ張っても容易に抜けることがな
い。[0007] Therefore, the nylon cord protrudes to the outside for each pair of mounting holes, and the cutting blade body has a large number of cutting blades. Also, the nylon cord is inserted into the mounting hole and the projection part turns sharply at an angle curve,
The cord does not come off easily even when pulled from outside.
【０００８】[0008]
【発明の実施形態】次に本発明の実施形態について説明
する。実施形態に示した刈刃体は、機器取付円盤を構成
するベース円板１及びリング状外周板２と、取付円盤に
装着するナイロンコード３からなるものである。Next, an embodiment of the present invention will be described. The cutting blade body shown in the embodiment includes a base disk 1 and a ring-shaped outer peripheral plate 2 constituting a device mounting disk, and a nylon cord 3 mounted on the mounting disk.
【０００９】ベース円板１及びリング状外周板２は、重
ね合わせて一体とするもので、特にリング状外周板２に
は、その中心位置から放射状にして且つ近接して設けた
対の凹部を、複数（図示例は四対）形成し、ベース円板
（外周部１１）１とで当該凹部をコード装着孔２１とし
たものである。The base disk 1 and the ring-shaped outer peripheral plate 2 are superposed and integrated with each other. In particular, the ring-shaped outer peripheral plate 2 is provided with a pair of concave portions provided radially and close to the center position thereof. A plurality of (four pairs in the illustrated example) are formed, and the concave portion is formed as the cord mounting hole 21 with the base disk (outer peripheral portion 11) 1.
【００１０】ベース円板１は、中央に機器装着用透孔１
２を穿設し、リング状外周板２との重合部分の内周部１
３は、外周部１１との間に段差を介して内周部１３を高
くし、当該内周部１３において、前記リング状外周板２
との境界付近に、コード装着孔２１の延長部分に、コー
ド装着孔２１に連続する凹溝１４を設け、更に凹溝１４
の間にコード折り返し突起１５を形成してなる。The base disk 1 has a through hole 1 for mounting a device in the center.
2 and the inner peripheral portion 1 of the overlapping portion with the ring-shaped outer peripheral plate 2
3 raises the inner peripheral portion 13 through a step between the outer peripheral portion 11 and the ring-shaped outer peripheral plate 2 at the inner peripheral portion 13.
Near the boundary with the cord mounting hole 21, a concave groove 14 continuous with the cord mounting hole 21 is provided,
A code return projection 15 is formed between them.
【００１１】ナイロンコード３は、矩形や星形断面で切
刃として使用する適宜な材質で形成され、適宜長さにし
て前記機器取付円盤に装着するもので、対の一方のコー
ド装着孔２１から差し入れて、凹溝１４から取り出し、
更に他方のコード装着孔２１に差し入れて先端を外周方
向に突出させ、内周部１３上に位置するコード３の折り
返し部分を、突起１５と外周板２の内縁との間に圧入す
るものである。The nylon cord 3 is made of an appropriate material used as a cutting blade in a rectangular or star-shaped cross section, and is made to have an appropriate length to be attached to the equipment mounting disk. Insert and remove from the groove 14,
Further, it is inserted into the other cord mounting hole 21 so that the tip protrudes in the outer peripheral direction, and the folded portion of the cord 3 located on the inner peripheral portion 13 is press-fitted between the projection 15 and the inner edge of the outer peripheral plate 2. .
【００１２】而して前記の刈刃体は、コード３が円盤か
ら放射状に８本突出することになり、草刈り本体に装着
し、回転させることで効率的な草刈りを行うことができ
る。特にコード３は、円盤に装着した中間部分が、急角
度カーブの折り返しとなるので、外周方向に強く引っ張
っても抜けることが無く、突起１５での折り返しを解除
すると、内方から容易に抜き取ることができ、更に凹溝
１４によって前記のコードの抜き差し作業がスムーズに
行うことができる。In the above-mentioned cutting blade body, eight cords 3 protrude radially from the disk, and can be mounted on the mowing main body and rotated to perform efficient mowing. In particular, since the intermediate portion attached to the disc has a sharp angle curve turned back, it does not come off even if it is strongly pulled in the outer peripheral direction. The cord 14 can be smoothly inserted and removed by the concave groove 14.
【００１３】[0013]
【発明の効果】以上のように本発明は、機器取付円盤の
外周部に放射状にして且つ近接して設けた複数対のコー
ド装着孔を形成し、対となっているコード装着孔の内周
側出口中間にコード折り返し突起を形成し、ナイロンコ
ードを、前記対の装着孔に外周側が端部となるようにＵ
状に挿着し、中間部分を突起に係止して逆Ｕ状に迂回さ
せて取付円盤とナイロンコードを一体化してなる刈刃体
で、刈刃となるナイロンコードを多数外部に張り出すこ
とができて刈り込み効率に優れ、且つコードの着脱が容
易であると共に、容易に抜けることがない等優れた刈刃
体を提供できるものである。As described above, according to the present invention, a plurality of pairs of cord mounting holes provided radially and in close proximity to each other are formed on the outer peripheral portion of the device mounting disk, and the inner peripheral portion of the pair of cord mounting holes is formed. A cord return projection is formed in the middle of the side outlet, and the nylon cord is inserted into the pair of mounting holes so that the outer peripheral side is an end.
A cutting blade body that integrates a mounting disk and a nylon cord by engaging the middle part with a projection and detouring in an inverted U shape, with a large number of nylon cords serving as cutting blades protruding outside. This makes it possible to provide an excellent cutting blade body which is excellent in pruning efficiency, easily attaches and detaches a cord, and does not easily come off.
【図１】本発明の実施形態の全体斜視図。FIG. 1 is an overall perspective view of an embodiment of the present invention.
【図２】同要部平面図（コード装着前）。FIG. 2 is a plan view of the main part (before attaching a cord).
【図３】同Ａ−Ａ線断面図。FIG. 3 is a sectional view taken along line AA of FIG.
【図４】同要部平面図（コード装着後）。FIG. 4 is a plan view of the main part (after attaching a cord).
【図５】同Ｂ−Ｂ線断面図。FIG. 5 is a sectional view taken along the line BB in FIG.
１ ベース円板 １１ 外周部 １２ 機器装着用透孔 １３ 内周部 １４ 凹溝 １５ 突起 ２ リング状外周板 ２１ コード装着孔 ３ ナイロンコード REFERENCE SIGNS LIST 1 base disk 11 outer peripheral portion 12 through hole for mounting device 13 inner peripheral portion 14 concave groove 15 protrusion 2 ring-shaped outer peripheral plate 21 cord mounting hole 3 nylon cord
Claims (2)
（商標）コードとからなり、機器取付円盤が、中央に機
器装着用透孔を穿設し、外周部に放射状にして且つ近接
して設けた複数対のコード装着孔を形成し、対となって
いるコード装着孔の内周側出口中間にコード折り返し突
起を形成してなり、ナイロンコードを、前記対の装着孔
に外周側が端部となるようにＵ状に挿着し、中間部分を
突起に係止して逆Ｕ状に迂回させて取付円盤とナイロン
コードを一体化してなることを特徴とする刈刃体。1. An apparatus mounting disk comprising a device mounting disk and a nylon (trademark) cord for a cutter, wherein the device mounting disk has a through hole for mounting the device in the center and is provided radially and close to the outer peripheral portion. A plurality of pairs of cord mounting holes are formed, and a cord return projection is formed in the middle of the inner peripheral side exit of the pair of cord mounting holes, and the outer peripheral side of the nylon cord becomes an end portion in the pair of mounting holes. A cutting blade body comprising a mounting disk and a nylon cord integrated by being inserted in a U-shape, engaging an intermediate portion with a projection, and diverting in an inverted U-shape.
外周板とで形成して外周部分を二枚重ね状にすると共
に、前記外周部分の重合間にコード装着孔を設け、ベー
ス円板に前記コード装着孔に連続する凹溝を設けると共
に、凹溝間に突起を形成してなる請求項１記載の刈刃
体。2. An apparatus mounting disk is formed by a base disk and a ring-shaped outer peripheral plate to form two outer peripheral portions in a superposed state, and a cord mounting hole is provided between the overlapping of the outer peripheral portions. The cutting blade body according to claim 1, wherein a continuous groove is provided in the cord mounting hole, and a projection is formed between the grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25665398A JP3170246B2 (en) | 1998-09-10 | 1998-09-10 | Cutting blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25665398A JP3170246B2 (en) | 1998-09-10 | 1998-09-10 | Cutting blade |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000083439A JP2000083439A (en) | 2000-03-28 |
| JP3170246B2 true JP3170246B2 (en) | 2001-05-28 |
Family
ID=17295611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25665398A Expired - Fee Related JP3170246B2 (en) | 1998-09-10 | 1998-09-10 | Cutting blade |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3170246B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6457242B1 (en) * | 2001-09-14 | 2002-10-01 | Robert L. Phillips | Auto-loading fixed-line trimmer head |
| US8025249B2 (en) * | 2007-11-16 | 2011-09-27 | Alliss George E | Bi-directional trimmer head spool with curved trimmer line guide |
| JP5148303B2 (en) * | 2008-01-28 | 2013-02-20 | ダイアトップ株式会社 | Brush cutter head |
| KR101508750B1 (en) * | 2014-10-21 | 2015-04-07 | 주식회사 일광 | Grass cutter |
| CN105612904B (en) * | 2016-01-15 | 2018-08-28 | 宫电高周波设备（上海）有限公司 | Mowing rotating knife |
-
1998
- 1998-09-10 JP JP25665398A patent/JP3170246B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000083439A (en) | 2000-03-28 |
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