JPS5925133Y2 - Cord type cutting blade device - Google Patents
Cord type cutting blade deviceInfo
- Publication number
- JPS5925133Y2 JPS5925133Y2 JP1977004736U JP473677U JPS5925133Y2 JP S5925133 Y2 JPS5925133 Y2 JP S5925133Y2 JP 1977004736 U JP1977004736 U JP 1977004736U JP 473677 U JP473677 U JP 473677U JP S5925133 Y2 JPS5925133 Y2 JP S5925133Y2
- Authority
- JP
- Japan
- Prior art keywords
- cord
- reel
- cutting blade
- rotating housing
- housing
- 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
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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Harvester Elements (AREA)
Description
【考案の詳細な説明】
本案はコード形刈取機のコード形刈刃装置を実用的に簡
素なものとし、消耗したコード自由端の更新をきわめて
簡単にできる構造とし、取り扱いの容易として安価なコ
ード形刈刃装置を提供せんとするものである。[Detailed description of the invention] This invention has a cord-type cutting blade device for a cord-type reaper that is practically simple, has a structure that makes it extremely easy to replace the worn-out free end of the cord, and has an easy-to-handle and inexpensive cord. The present invention aims to provide a shape cutting blade device.
以下実施例について詳細な説明を進める。A detailed explanation of the embodiments will be given below.
第１図は、本案の刈刃装置を備える草刈機の側面全貌を
示す図であり、第２図に第１図刈刃装置の要部縦断面を
示し技術的構造を開示する。FIG. 1 is a side view showing the entire side view of a grass cutter equipped with the cutting blade device of the present invention, and FIG. 2 shows a longitudinal section of the main part of the cutting blade device shown in FIG. 1 to disclose its technical structure.
第３図に、第２図の底面図を示した。FIG. 3 shows a bottom view of FIG. 2.
第４図は第２図Ｘ−Ｘ部矢視断面図である。FIG. 4 is a sectional view taken along the line XX in FIG. 2.
草刈機主杆１の上端にはエンジンＥを、下端には刈刃装
置頭部２を取着し、主杆１に内挿された伝動軸４を前記
頭部の先端に突出し、螺子部５を設けて、周壁６を有し
、該周壁６に溝形で内外に通ずる複数の通溝７，７′を
有する椀形の旋回筐体８を、一側に螺子軸部９を有する
ナツト１０によって前記伝動軸４の先端に固着し一体に
旋回可能ならしめである。The engine E is attached to the upper end of the main rod 1 of the mower, and the cutting blade device head 2 is attached to the lower end, and the transmission shaft 4 inserted into the main rod 1 is protruded from the tip of the head. A bowl-shaped rotating housing 8 having a peripheral wall 6 and a plurality of grooves 7, 7' communicating inside and outside in the peripheral wall 6 is attached to a nut 10 having a threaded shaft portion 9 on one side. It is fixed to the tip of the transmission shaft 4 and can be rotated as a unit.
該旋回筐体８の内空部１１には、中心部に凹穴部１２を
有するリール体１３を前記ナツト１０の側面を平行な対
向平面で二面取して設けた軸部に遊嵌し、該リール体１
３はばね１４を介してばね受１５と共にナツト１６によ
って旋回筐体８に対して弾撥的に嵌着されていて、旋回
筺体８の内側で軸方向の摺動を許しであるが回動を制限
してあり、また、該リール体１３の外径は旋回筐体８の
内径とは適当な間隙を保ち、特に旋回筐体８の周壁６の
内周縁との間隙２２は、リール体１３に収容されるコー
ド１８の直径より若干狭小に設けられる。In the inner cavity 11 of the rotating housing 8, a reel body 13 having a recessed hole 12 in the center is loosely fitted into a shaft portion of the nut 10, which is formed by chamfering the side surfaces of the nut 10 with parallel opposing planes. , the reel body 1
3 is elastically fitted to the rotating housing 8 by a spring 14 and a spring bearing 15 by a nut 16, and is allowed to slide in the axial direction inside the rotating housing 8, but does not rotate. In addition, the outer diameter of the reel body 13 maintains an appropriate gap from the inner diameter of the rotating housing 8, and in particular, the gap 22 between the inner circumferential edge of the peripheral wall 6 of the rotating housing 8 and the inner diameter of the rotating housing 8 It is provided to be slightly narrower than the diameter of the cord 18 to be accommodated.
リール体１３にはそのリール溝１７にナイロン等合成樹
脂材よりなるコード１８を適当長さ捲回収容していて、
その外径を押え環で緩く規正することもできる。The reel body 13 has a cord 18 made of a synthetic resin material such as nylon wound around the reel groove 17 to a suitable length.
The outer diameter can also be loosely regulated with a presser ring.
そしてコード１８の末端部を前記旋回筐体８の通溝７か
ら外部に延在せしめて自由端２０を作っである。A free end 20 is formed by extending the distal end of the cord 18 outward from the passage groove 7 of the swing housing 8.
ここにおいて本装置の特徴は、リール体１３が旋回筐体
８に嵌着される場合に、ナツト１０が丸棒の外径に平行
二面取を行ったものであり、リール体１３はナツト１０
に対し軸線に平行に摺動はできるが回動のできない廻り
止め構造としていることである。Here, the feature of this device is that when the reel body 13 is fitted into the rotating housing 8, the nut 10 has two parallel chamfers on the outer diameter of a round bar;
On the other hand, it has a rotation preventing structure that allows sliding parallel to the axis but does not allow rotation.
（第４図参照）またコード１８を捲回するにあたっては
、リール溝１７の底部で内側壁に向けて開孔したコード
の係止孔２１を設けている。(See FIG. 4) When winding the cord 18, a cord locking hole 21 is provided at the bottom of the reel groove 17 toward the inner wall.
従ってコード１８は、リール体１３に固定されて捲回さ
れると共に旋回筐体８とも定位置を保って装着された状
態になっている。Therefore, the cord 18 is fixed to the reel body 13 and wound, and is also attached to the rotating housing 8 while maintaining a fixed position.
以上の構造による作用効果は、外方に延在するコード１
８の自由端２０が刈刃の効果を有し、伝動軸４の回転に
よって旋回筐体８が高速に旋回を受け、コードによって
芝草や雑草を容易に刈り取ることができる。The effect of the above structure is that the outwardly extending cord 1
The free end 20 of the mower 8 has the effect of a cutting blade, and the rotation of the transmission shaft 4 causes the rotary housing 8 to rotate at high speed, making it possible to easily cut grass and weeds with the cord.
延在部分のコードが消耗した場合には、コードを引張る
等してリール体１３をばね１４の押力に抗して全体また
は一部を浮き上らさせて、コードを旋回筐体８の通溝７
から外してコードのほどき方向に移動して次の通溝７′
に嵌装してリール体１３をばねにより自動的に復旧せし
めることで、コードは適当長さだけほどけて外方に延長
することができるので、コードの新規部分を作ることが
でき刈刃が更新されるのである。When the cord in the extended portion is worn out, the reel body 13 is lifted up in whole or in part against the pushing force of the spring 14 by pulling the cord, etc., and the cord is passed through the rotating housing 8. Groove 7
Remove it from the cord and move it in the direction of unraveling the cord to the next passage groove 7'.
By fitting the cord into the reel and automatically restoring the reel body 13 with a spring, the cord can be unraveled to an appropriate length and extended outward, allowing a new section of the cord to be created and the cutting blade to be renewed. It will be done.
かくてコードは継続的に更新を続けて使用することがで
きる。Thus, the code can be continuously updated and used.
しかも旋回筐体とリール体の間隙はコード径より狭小で
あるので、作業中にコードはほどけることがない。Moreover, since the gap between the rotating housing and the reel body is narrower than the diameter of the cord, the cord will not unravel during operation.
また単一のコードリール体の状態で旋回使用するからコ
ードがねじれ、ることかない。Also, since it is used as a single cord reel, the cord does not get twisted.
本案構造は偏平な大径な旋回体に形威し易く、コードの
延在部分を格別に長大にすることなく腰の強いコード形
刈刃として供用できるのみならず、刈り数周速度も高い
状態に保つので切れ味も良い。The proposed structure can be easily shaped into a flat, large-diameter revolving body, and can be used as a strong cord-shaped cutting blade without making the cord extension particularly long.It also has a high cutting speed. It maintains its sharpness as well.
かくて、簡素な構造によって消耗したコード自由端を、
きわめて容易に更新出来る堅牢なコード形刈刃装置を提
供することができる。In this way, the free end of the cord, which was worn out due to the simple structure, can be
It is possible to provide a robust cord-type cutting blade device that can be updated very easily.
第１図に本案刈刃装置を備える実施例草刈機の側面全貌
を示す。
第２図に本案実施例刈刃装置要部の縦断面を示し、技術
的構造を開示している。
第３図に第２図の底面図を示した。
第４図に第２図Ｘ−Ｘ部矢視断面図を示した。
４・・・・・・伝動軸、６・・・・・・周壁、７，７′
・・・・・・通溝、８・・・・・・旋回筐体、１１・・
・・・・内空部、１２・・・・・・凹穴部、１３・・・
・・・リール体、１４・・・・・・ばね、１７・・・・
・・リール溝、１８・・・・・・コード、２０・・・・
・・自由端、２２・・・・・・間隙。FIG. 1 shows the entire side view of an embodiment of the mower equipped with the mower of the present invention. FIG. 2 shows a longitudinal section of the main part of the cutting blade device according to the present invention, and discloses the technical structure. FIG. 3 shows a bottom view of FIG. 2. FIG. 4 shows a sectional view taken along the line XX in FIG. 2. 4...Transmission shaft, 6...Peripheral wall, 7, 7'
...Throughout groove, 8...Swivel housing, 11...
...Inner cavity, 12... Concave hole, 13...
... Reel body, 14 ... Spring, 17 ...
... Reel groove, 18 ... Code, 20 ...
...Free end, 22...Gap.
Claims (1)
形で内外に通ずる通溝７，７′を有する椀形の旋回筐体
８を取着してこれを基台とし、該旋回筐体８の内空部１
１に、中心部に凹穴部１２を有するリール体１３を嵌装
し、該凹穴部１２でばね１４を介して前記伝動軸４に前
記旋回筐体８と同軸に、軸方向の摺動は許されるが、回
動を拘束した嵌装を行い、かつ旋回筐体８とは夫々双方
周縁部がコード１８の径よりも狭小な間隙２２を保って
弾撥的に締着し、前記リール体１３にはそのリール溝１
７にナイロン等合成樹脂材よりなるコード１８を捲回し
、その一端を前記旋回筐体８の溝形通溝７を通じて該旋
回筐体８の外に自由端２０として延在せしめたコード形
刈刃装置。A bowl-shaped rotating housing 8 having a peripheral wall 6 and a plurality of grooves 7, 7' communicating inside and outside is attached to the tip of the transmission shaft 4, and this is used as a base. , the inner space 1 of the rotating housing 8
1, a reel body 13 having a recessed hole portion 12 in the center is fitted, and the reel body 13 is fitted in the recessed hole portion 12 via a spring 14 to the transmission shaft 4 coaxially with the rotating housing 8 and slidable in the axial direction. However, the rotation of the reel is restricted, and the peripheral edges of both sides of the reel are elastically fastened with a gap 22 narrower than the diameter of the cord 18. The body 13 has its reel groove 1
A cord-shaped cutting blade in which a cord 18 made of a synthetic resin material such as nylon is wound around a cord 7, and one end of the cord 18 is extended as a free end 20 outside the rotary housing 8 through the groove-shaped passage 7 of the rotary housing 8. Device.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1977004736U JPS5925133Y2 (en) | 1977-01-20 | 1977-01-20 | Cord type cutting blade device |
| IT4996477A IT1079087B (en) | 1977-01-20 | 1977-06-23 | CORD TYPE CUTTING BLADE DEVICE FOR GRASS MOWERS |
| FR7720137A FR2377758A1 (en) | 1977-01-20 | 1977-06-30 | Grass cutter with cutting filament - has reel mounted in slotted housing and biassed against base by spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1977004736U JPS5925133Y2 (en) | 1977-01-20 | 1977-01-20 | Cord type cutting blade device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS53100442U JPS53100442U (en) | 1978-08-14 |
| JPS5925133Y2 true JPS5925133Y2 (en) | 1984-07-24 |
Family
ID=11592183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1977004736U Expired JPS5925133Y2 (en) | 1977-01-20 | 1977-01-20 | Cord type cutting blade device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS5925133Y2 (en) |
| FR (1) | FR2377758A1 (en) |
| IT (1) | IT1079087B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60131120U (en) * | 1984-02-14 | 1985-09-02 | 株式会社共立 | grass mower cutting blade device |
| US5060384A (en) * | 1990-12-06 | 1991-10-29 | Inertia Dynamics Corporation | Automatic head for a line trimmer |
| GB9315594D0 (en) * | 1993-07-28 | 1993-09-08 | Black & Decker Inc | Improvements in or relating to vegetation cutters |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5329609A (en) * | 1976-08-31 | 1978-03-20 | Nec Corp | Detecting circuit for data signal |
-
1977
- 1977-01-20 JP JP1977004736U patent/JPS5925133Y2/en not_active Expired
- 1977-06-23 IT IT4996477A patent/IT1079087B/en active
- 1977-06-30 FR FR7720137A patent/FR2377758A1/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5329609A (en) * | 1976-08-31 | 1978-03-20 | Nec Corp | Detecting circuit for data signal |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2377758A1 (en) | 1978-08-18 |
| FR2377758B1 (en) | 1980-02-22 |
| JPS53100442U (en) | 1978-08-14 |
| IT1079087B (en) | 1985-05-08 |
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