JPS6121941Y2 - - Google Patents
Info
- Publication number
- JPS6121941Y2 JPS6121941Y2 JP11581980U JP11581980U JPS6121941Y2 JP S6121941 Y2 JPS6121941 Y2 JP S6121941Y2 JP 11581980 U JP11581980 U JP 11581980U JP 11581980 U JP11581980 U JP 11581980U JP S6121941 Y2 JPS6121941 Y2 JP S6121941Y2
- Authority
- JP
- Japan
- Prior art keywords
- cutting blade
- transmission shaft
- cutting
- blades
- rotation
- 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
- 230000005540 biological transmission Effects 0.000 claims description 17
- 244000025254 Cannabis sativa Species 0.000 description 3
- 208000019300 CLIPPERS Diseases 0.000 description 2
- 208000021930 chronic lymphocytic inflammation with pontine perivascular enhancement responsive to steroids Diseases 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 244000007853 Sarothamnus scoparius Species 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
Landscapes
- Harvester Elements (AREA)
Description
【考案の詳細な説明】
本考案は刈払機に関し、特にその刈刃装置に特
徴を有し、その伝動軸に対して刈刃を回動調整す
ることにより刈刃の向きを変えることができる。[Detailed Description of the Invention] The present invention relates to a brush cutter, and is particularly characterized by its cutting blade device, in which the direction of the cutting blade can be changed by adjusting the rotation of the cutting blade with respect to its transmission shaft.
一般にはこの種刈刃はその用途によつても異な
るがこれらは回転刃や往復動刃であるが、切断性
能及び安全性を考えると往復動刃の方が優れてい
る、しかし構造が複雑となり、高価で重量が大き
くなる。特に従来の往復動刃は、例えば本実用新
案登録出願人の出願に係る特公昭53−42693号公
報に記載されている如く、伝動軸の前方に全部の
往復動刃を延設しているために作業抵抗が大きく
操作がむづかしいとされていた。 In general, these cutting blades are either rotary blades or reciprocating blades, depending on their purpose, but reciprocating blades are superior in terms of cutting performance and safety, but they have a more complex structure. , is expensive and heavy. In particular, in conventional reciprocating blades, all the reciprocating blades extend in front of the transmission shaft, as described in Japanese Patent Publication No. 53-42693 filed by the present applicant for utility model registration. It was said that the work resistance was large and it was difficult to operate.
本考案はかゝる往復動する刈刃に伴なう従来の
問題点、特にその作業性を向上する改良構造に関
し、往復動刃の切断能力や安全性を促進すると共
にその作業性を向上した刈刃機を提供することを
目的とする。 The present invention solves the conventional problems associated with such reciprocating cutting blades, especially with regard to an improved structure that improves its workability.The present invention aims to improve the cutting ability and safety of reciprocating blades, as well as improve its workability. The purpose is to provide cutting blades.
以下本考案を図面の実施例に従つて説明する。 The present invention will be explained below with reference to the embodiments shown in the drawings.
本実施例の刈払機は、伝動軸１を内挿した長杆
２のの上端に原動機３、下端に刈刃装置４を備え
ている。そしてこの刈刃装置４は長杆２に対して
ねじ５及び１１を弛めて回動調整することができ
る。 The brush cutter of this embodiment includes a motor 3 at the upper end of a long rod 2 into which a transmission shaft 1 is inserted, and a cutting blade device 4 at the lower end. The rotation of this cutting blade device 4 can be adjusted by loosening the screws 5 and 11 relative to the long rod 2.
刈刃装置４は、第２図及び第３図から判るよう
に、伝動軸１の下端の小歯車６と噛合う大歯車７
を有し、この大歯車７の回転によりクランク円板
８及び９を有する軸１０を回転する。又クランク
円板８及び９は往復動する上下の刈刃１２及び１
３を互いに摺動させて草木を挾み切る。そのため
に上下の刈刃１２及び１３は互いに位相角度が
180゜異なつたクランク円板８及び９とコンロツ
ド１４及び１５を介して接続されている。即ち、
原動機３により回転された伝動軸１はその回転を
下端の小歯車６で大歯車７に伝達する。そしてこ
の大歯車７の回転により軸１０を回転してクラン
ク円板８及び９を回転しこのクランク円板８及び
９の回転によりベアリング１６及び１７を介して
連結されているコンロツド１４及び１５が第２図
に於いて左右に往復動させる。又、このコンロツ
ド１４及び１５は突出ピン１８及び１９により上
下の刈刃１２及び１３をピン孔２０及び２１を介
して左右に往復動する。上下の刈刃１２及び１３
は第２図及び第３図から判るように刈刃装置４の
案内板２２，２３，２４及び２５に案内されてお
り、上の刈刃１２は左側に延びているコンロツド
１４により往復動され、下の刈刃１３は右側に延
びているコンロツド１５により往復動される。
又、第３図から判るように上下の刈刃１２及び１
３はその刃部をバリカン状に形成しており、その
刈り巾の略中央を前記伝動軸１の軸心から半径方
向に離間した側方、すなわち、第３図に於いて刈
刃装置筐体の上方に並列に配置されている。そし
てこの刃部が上下方向に動かないように刈り巾の
略中央にも案内保持部２６を設けて刃部を変形を
防止している。なお、バリカン状の刃部のみを着
脱可能に設けておけば、実用上好適である。 As can be seen from FIGS. 2 and 3, the cutting blade device 4 includes a large gear 7 that meshes with a small gear 6 at the lower end of the transmission shaft 1.
The rotation of the large gear 7 rotates a shaft 10 having crank discs 8 and 9. Further, the crank discs 8 and 9 reciprocate the upper and lower cutting blades 12 and 1.
Slide the parts 3 against each other to cut the plants. Therefore, the upper and lower cutting blades 12 and 13 have a phase angle with respect to each other.
It is connected to crank discs 8 and 9, which are different by 180 degrees, through connecting rods 14 and 15. That is,
The transmission shaft 1 rotated by the prime mover 3 transmits its rotation to the large gear 7 through the small gear 6 at the lower end. The rotation of the large gear 7 rotates the shaft 10 to rotate the crank discs 8 and 9, and the rotation of the crank discs 8 and 9 causes the connecting rods 14 and 15, which are connected via bearings 16 and 17, to rotate. In Figure 2, it is reciprocated left and right. Further, the connecting rods 14 and 15 reciprocate the upper and lower cutting blades 12 and 13 to the left and right through pin holes 20 and 21 by means of projecting pins 18 and 19. Upper and lower cutting blades 12 and 13
As can be seen from FIGS. 2 and 3, the upper cutting blade 12 is guided by guide plates 22, 23, 24, and 25 of the cutting blade device 4, and the upper cutting blade 12 is reciprocated by a connecting rod 14 extending to the left. The lower cutting blade 13 is reciprocated by a connecting rod 15 extending to the right.
Also, as can be seen from Fig. 3, the upper and lower cutting blades 12 and 1
3 has a blade portion shaped like a clipper, and the approximate center of its cutting width is located on the side radially away from the axis of the power transmission shaft 1, that is, in the case of the cutting blade device in FIG. are arranged in parallel above. In order to prevent the blade from moving in the vertical direction, a guide holding part 26 is also provided approximately at the center of the cutting width to prevent the blade from deforming. Note that it is practically preferable to provide only the clipper-shaped blade portion in a removable manner.
以上の如く本考案の構成によれば、刈刃を伝動
軸の側方に伝動軸の軸心から半径方向に離して有
すると共に刈刃の刈り巾の略中央を伝動軸の軸心
の近くに配置し刈刃を伝動軸に対して回動調整し
てその向きを変えることができるので、従来の作
業抵抗を大巾に低減せしめて往復動刃の長所を生
かすことができ、刈刃装置を回動調整することに
より箒で掃くようにしたり、熊手でかき寄せるよ
うにしたり、刈払機の多様な使用をも可能にす
る。又更に刈刃刈り巾の略中央部に伝動軸がある
ので後方装置筐体部が集草壁を形成して刈草の散
乱を防止する集草効果を果すことができる。 As described above, according to the configuration of the present invention, the cutting blade is provided on the side of the transmission shaft and is spaced apart from the axis of the transmission shaft in the radial direction, and the approximate center of the cutting width of the cutting blade is located near the axis of the transmission shaft. By positioning the cutting blade and adjusting its rotation relative to the transmission shaft, the direction of the cutting blade can be changed, greatly reducing the conventional work resistance and making use of the advantages of reciprocating blades. By adjusting the rotation, the brush cutter can be used in a variety of ways, such as sweeping with a broom or raking with a rake. Furthermore, since the transmission shaft is located approximately at the center of the cutting width of the cutting blade, the rear device casing forms a grass collection wall to achieve a grass collection effect that prevents grass clippings from scattering.
図面は本考案の一実施例を示すもので、第１図
は刈払機の側面図、第２図は刈刃装置の要部断面
図、そして第３図は刈刃装置の平面図である。
１……伝動軸、２……長杆、３……原動機、４
……刈刃装置、５，１１……ねじ、１２……上
刃、１３……下刃。
The drawings show one embodiment of the present invention; FIG. 1 is a side view of a brush cutter, FIG. 2 is a cross-sectional view of a main part of a cutting blade device, and FIG. 3 is a plan view of the cutting blade device. 1... Transmission shaft, 2... Long rod, 3... Prime mover, 4
...Mower blade device, 5, 11...Screw, 12...Upper blade, 13...Lower blade.
Claims (1)
刈刃装置を備え、該刈刃装置が往復動する刈刃を
前記伝動軸の側方に伝動軸の軸心から半径方向に
離して有すると共に刈刃の刈り巾の略中央を伝動
軸の軸心の近くに配置し刈刃を伝動軸に対して回
動調整してその向きを変えることができることを
特徴とする刈払機。 A long rod with a transmission shaft inserted therein is provided with a prime mover at the upper end and a cutting blade device at the lower end, and the cutting blade reciprocated by the cutting blade device is placed radially away from the axis of the transmission shaft to the side of the transmission shaft. What is claimed is: 1. A brush cutter characterized in that the approximate center of the cutting width of the cutting blade is arranged near the axis of the transmission shaft, and the direction of the cutting blade can be changed by adjusting the rotation of the cutting blade with respect to the transmission shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11581980U JPS6121941Y2 (en) | 1980-08-15 | 1980-08-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11581980U JPS6121941Y2 (en) | 1980-08-15 | 1980-08-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5743018U JPS5743018U (en) | 1982-03-09 |
| JPS6121941Y2 true JPS6121941Y2 (en) | 1986-07-01 |
Family
ID=29476719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11581980U Expired JPS6121941Y2 (en) | 1980-08-15 | 1980-08-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6121941Y2 (en) |
-
1980
- 1980-08-15 JP JP11581980U patent/JPS6121941Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5743018U (en) | 1982-03-09 |
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