JPS6038341Y2 - Brush cutter transmission device - Google Patents
Brush cutter transmission deviceInfo
- Publication number
- JPS6038341Y2 JPS6038341Y2 JP9064180U JP9064180U JPS6038341Y2 JP S6038341 Y2 JPS6038341 Y2 JP S6038341Y2 JP 9064180 U JP9064180 U JP 9064180U JP 9064180 U JP9064180 U JP 9064180U JP S6038341 Y2 JPS6038341 Y2 JP S6038341Y2
- Authority
- JP
- Japan
- Prior art keywords
- connecting rod
- transmission shaft
- brush cutter
- bearing body
- transmission device
- 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
Landscapes
- Harvester Elements (AREA)
Description
【考案の詳細な説明】
本考案は、回転刃を回転自在に支持する支持体とエンジ
ンとを連結する連結杆と、この連結杆の内部を貫通して
回転刃を駆動するための伝動軸を設けた刈払機の伝動装
置に係るものである。[Detailed description of the invention] The invention includes a connecting rod that connects the engine to a support that rotatably supports the rotary blade, and a transmission shaft that penetrates the inside of the connecting rod and drives the rotary blade. This relates to the transmission device of the installed brush cutter.
従来、この種の刈払機の伝動装置のおいては、鋼材で製
作された剛性の長い伝動軸が設けられ、回転によって振
れを生じ、共振によって大きく振動して伝動部分の損傷
を生じていた。Conventionally, this type of transmission device for a brush cutter is equipped with a long, rigid transmission shaft made of steel, which causes vibrations due to rotation and large vibrations due to resonance, causing damage to the transmission part.
このため、伝動軸の外周を回転自在に軸支する軸受孔を
備えた軸受体を連結杆の内径部に、適宜な間隔をもって
接着剤により接着、固定して設けていた。For this reason, a bearing body having a bearing hole that rotatably supports the outer periphery of the transmission shaft is provided on the inner diameter portion of the connecting rod by adhering and fixing it with an adhesive at appropriate intervals.
このため、長い連結杆内に、この軸受体を挿入、位置決
め、接着の作業が厄介で組み付は作業の能率を阻害して
いた。For this reason, the work of inserting, positioning, and gluing the bearing body into the long connecting rod is troublesome, and the efficiency of the assembly work is hindered.
本考案は、剛性の伝動軸の外周を回転自在に軸支して軸
方向の湾曲を防止する軸受孔と、連結杆の内径部に嵌合
する複数個の突起部とを備えた軸受体を、連結杆の内部
に、はぼ全長にわたって連結して設けることにより、連
結杆に軸受体を接着剤により接着する必要がなく、挿脱
容易にして、組み付は作業の能率を向上することができ
る刈払機の伝動装置を提供しようとするものである。The present invention includes a bearing body that is equipped with a bearing hole that rotatably supports the outer periphery of a rigid transmission shaft to prevent it from curving in the axial direction, and a plurality of protrusions that fit into the inner diameter of the connecting rod. By providing the bearing body inside the connecting rod and connecting it over the entire length, there is no need to glue the bearing body to the connecting rod with adhesive, making it easy to insert and remove, and improve the efficiency of assembly work. The aim is to provide a transmission device for a brush cutter that is capable of
以下、図面により本考案の一実施例について詳細な説明
を行なう。Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.
図において、1は回転刃3を回転自在に軸支する支持体
、5はエンジン7と支持体1とを連結する円筒状の連結
杆、9は連結杆5の内部を貫通して、エンジン7の動力
を回転刃3に伝達するための鋼材で製作された剛性の伝
動軸である。In the figure, 1 is a support that rotatably supports the rotary blade 3, 5 is a cylindrical connecting rod that connects the engine 7 and the support 1, and 9 is a cylindrical connecting rod that passes through the inside of the connecting rod 5 to connect the engine 7. This is a rigid transmission shaft made of steel for transmitting power to the rotary blade 3.
11は連結杆5に固着する握り部、13は連結杆5に固
着するハンドル15に設けた握り部、17はハンドル1
5に設けたスロットルレバーである。11 is a grip part fixed to the connecting rod 5; 13 is a grip part provided on the handle 15 which is fixed to the connecting rod 5; 17 is a handle 1
This is the throttle lever installed at 5.
19はエンジン7のクランクケース21に軸支されたク
ランク軸、23はクランク軸19に設けたクランクアー
ム25に一端をクランクピン27により枢着され、他端
をピストン(図示せず)に枢着されたロンドで、ピスト
ン(図示せず)の往復運動によりクランク軸19を回転
駆動するものである。Reference numeral 19 denotes a crankshaft pivotally supported by the crank case 21 of the engine 7, and reference numeral 23 has one end pivotally connected to a crank arm 25 provided on the crankshaft 19 by a crank pin 27, and the other end pivotally connected to a piston (not shown). The crankshaft 19 is rotated by the reciprocating movement of a piston (not shown).
29はクランク軸19の端部に設けた遠心クラッチ、3
1は遠心クラッチ29の外方に設けたクラッチドラムで
、回転軸33に固着されている。29 is a centrifugal clutch provided at the end of the crankshaft 19;
Reference numeral 1 designates a clutch drum provided outside the centrifugal clutch 29, and is fixed to a rotating shaft 33.
35はクランクケース21に固着して一体に設けられた
クラッチハウジング、37はクラッチハウジング35に
ボルト(図示せず)により固着された蓋部で、ベアリン
グ39.39により回転軸33を軸支している。Reference numeral 35 denotes a clutch housing that is fixed and integrated with the crankcase 21, and 37 is a lid that is fixed to the clutch housing 35 with bolts (not shown), which pivotally supports the rotating shaft 33 with bearings 39 and 39. There is.
連結杆5の一端は蓋部37の端部に、切欠溝41により
分割された係合部43に嵌合して、ねじ45により固定
されている。One end of the connecting rod 5 is fitted into an engaging part 43 divided by a notched groove 41 at the end of the lid part 37 and fixed by a screw 45.
47は伝動軸9の外周を回転自在に軸支する軸受孔49
を備えた軸受体で、可視性の合成樹脂で形成され、連結
杆5の内径部に嵌合する複数個の突起部51,51.・
・・が設けられ、連結杆5の内部に、はぼ全長にわたっ
て連続して連結されている。47 is a bearing hole 49 that rotatably supports the outer periphery of the transmission shaft 9.
The bearing body is made of visible synthetic resin and has a plurality of protrusions 51, 51 . that fit into the inner diameter part of the connecting rod 5.・
... are provided and are continuously connected to the inside of the connecting rod 5 over almost the entire length.
53は軸受体47の端部を係止する座金、55は伝動軸
9と回転軸33を連結するねじ部である。53 is a washer that locks the end of the bearing body 47, and 55 is a threaded portion that connects the transmission shaft 9 and the rotating shaft 33.
以上の構成において、エンジン7の動力は、クランク軸
19、遠心クラッチ29、クラッチドラム31.回転軸
33を経て伝動軸9に伝達され、回転刃3を回転駆動す
る。In the above configuration, the power of the engine 7 is transmitted to the crankshaft 19, the centrifugal clutch 29, the clutch drum 31. It is transmitted to the transmission shaft 9 via the rotating shaft 33, and rotationally drives the rotary blade 3.
伝動軸9は細長な形状のため回転により湾曲振動しよう
とするが軸受体47に支持されて振動を生ずることがな
い。Since the transmission shaft 9 has an elongated shape, it tends to bend and vibrate due to rotation, but it is supported by the bearing body 47 and does not generate vibration.
組み付けに際しては、連結杆5内に軸受体47を挿入し
、伝動軸9を軸受孔49内に挿入して、蓋部37の係合
部43に連結杆5の端部を保合、固定し、つぎに回転軸
33を伝動軸9に係合せしめるとともに蓋部37に軸支
せしめ、つづいて蓋部37をクラッチハウジング35に
係合するものである。When assembling, insert the bearing body 47 into the connecting rod 5, insert the transmission shaft 9 into the bearing hole 49, and engage and fix the end of the connecting rod 5 to the engaging part 43 of the lid part 37. Next, the rotary shaft 33 is engaged with the transmission shaft 9 and is pivotally supported by the lid portion 37, and then the lid portion 37 is engaged with the clutch housing 35.
また分割して別体に設けた軸受体47,47、・・・を
長手方向に設けた突起部51,51・・・により連結し
て設けてもよい。Furthermore, the bearing bodies 47, 47, . . . , which are divided and provided separately, may be connected by projections 51, 51, . . . provided in the longitudinal direction.
また連結杆5の内径部に嵌合する円筒体をほぼ全長にわ
たって連続して設け、この円筒体に突起部を介して軸受
体を連結支持せしめてもよい。Alternatively, a cylindrical body that fits into the inner diameter portion of the connecting rod 5 may be provided continuously over almost the entire length, and the bearing body may be connected and supported by this cylindrical body via a protrusion.
この場合の軸受体または突起部は長手方向に連続し、あ
るいは分割して形成することはいずれも本考案に属する
ものである。In this case, it is within the scope of the present invention that the bearing body or the protrusion be formed continuously in the longitudinal direction or divided into parts.
以上のように本考案は、回転刃を回転自在に支持する支
持体とエンジンとを連結する連結杆と、前記連結杆の内
部を貫通して前記回転刃を駆動するための剛性の伝動軸
とを設け、前記伝動軸の外周を回転自在に軸支する軸受
孔と、前記連結杆の内径部に嵌合する複数個の突起部と
を備えた軸受体を前記連結杆の内部に、はぼ全長にわた
って連結して設けた刈払機の伝動装置であるから、伝動
軸の共振を防止できるとともに、軸受体を連結杆に接着
する必要がなく、挿入、離脱容易に伝動軸の共振を防ぐ
ことができ、しかも組み付は作業の能率を向上すること
ができるとともに、軸受体が軸方向に移動することがな
くて、伝動軸を安定して支持することができ、さらに突
起部により連結杆に支持されるため、伝動軸の振動を吸
収して連結杆に設けた握り部を把持する作業者の手に振
動が伝導することを防ぐことができるものである。As described above, the present invention includes a connecting rod that connects an engine to a support that rotatably supports a rotary blade, and a rigid power transmission shaft that penetrates the inside of the connecting rod and drives the rotary blade. and a bearing body having a bearing hole rotatably supporting the outer periphery of the transmission shaft and a plurality of protrusions that fit into the inner diameter part of the connecting rod is installed inside the connecting rod. Since the transmission device of the brush cutter is connected over the entire length, resonance of the transmission shaft can be prevented, and there is no need to glue the bearing body to the connecting rod, making it easy to insert and remove, preventing resonance of the transmission shaft. In addition, the assembly efficiency can be improved, the bearing body does not move in the axial direction, and the transmission shaft can be stably supported, and the protrusion allows it to be supported on the connecting rod. Therefore, it is possible to absorb the vibrations of the transmission shaft and prevent the vibrations from being transmitted to the hands of the operator who grips the grip provided on the connecting rod.
なお、本考案は前述の実施例に限定されるものではなく
、他の態様においても実施しうるものである。It should be noted that the present invention is not limited to the above-mentioned embodiments, but can be implemented in other embodiments as well.
第1図は刈払機の斜視説明図、第2図、第3図はそれぞ
れ本考案の1実施例の側断面図、正断面図、第4図は要
部の側断面図である。
図面の主要な部分を表わす符号の説明、1・・・・・・
支持体、3・・・・・・回転刃、5・・・・・・連結杆
、7・・・・・・エンジン、9・・・・・・伝動軸、4
7・・・・・・軸受体、49・・・・・・軸受孔、51
・・・・・・突起部。FIG. 1 is a perspective explanatory view of a brush cutter, FIGS. 2 and 3 are a side sectional view and a front sectional view, respectively, of one embodiment of the present invention, and FIG. 4 is a side sectional view of essential parts. Explanation of the symbols representing the main parts of the drawing, 1...
Support body, 3... Rotating blade, 5... Connection rod, 7... Engine, 9... Transmission shaft, 4
7...Bearing body, 49...Bearing hole, 51
······protrusion.
Claims (1)
を連結する直線状の連結杆5と、前記連結杆5の内部を
貫通して前記回転刃3を駆動するための剛性の伝動軸9
とを設け、前記伝動軸9の外周を回転自在に軸支して軸
方向の湾曲を防止する軸受孔49と、前記連結杆5の内
径部に嵌合する複数個の突起部51,51.・・・とを
備えた軸受体47を前記連結杆5の内部に、はぼ全長に
わたって連結して設けたことを特徴とする刈払機の伝動
装置。A linear connecting rod 5 that connects the support 1 that rotatably supports the rotary blade 3 and the engine 7, and a rigid power transmission shaft that penetrates the inside of the connecting rod 5 and drives the rotary blade 3. 9
a bearing hole 49 for rotatably supporting the outer periphery of the transmission shaft 9 to prevent it from curving in the axial direction; and a plurality of protrusions 51, 51 . . . . A transmission device for a brush cutter, characterized in that a bearing body 47 is provided inside the connecting rod 5 and connected over almost the entire length thereof.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9064180U JPS6038341Y2 (en) | 1980-06-30 | 1980-06-30 | Brush cutter transmission device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9064180U JPS6038341Y2 (en) | 1980-06-30 | 1980-06-30 | Brush cutter transmission device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5715111U JPS5715111U (en) | 1982-01-26 |
JPS6038341Y2 true JPS6038341Y2 (en) | 1985-11-15 |
Family
ID=29452640
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9064180U Expired JPS6038341Y2 (en) | 1980-06-30 | 1980-06-30 | Brush cutter transmission device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6038341Y2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20190004079A (en) * | 2017-07-03 | 2019-01-11 | 엘에스오토모티브테크놀로지스 주식회사 | Inhibitor switch for vehicle |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59179523U (en) * | 1983-05-20 | 1984-11-30 | 小松ゼノア株式会社 | brush cutter |
JPS59223581A (en) * | 1983-05-26 | 1984-12-15 | スズキ株式会社 | Frame for motorcycle |
JPS6072386U (en) * | 1983-10-25 | 1985-05-22 | 川崎重工業株式会社 | Light alloy three-part frame structure |
JPS6073694U (en) * | 1983-10-28 | 1985-05-23 | 本田技研工業株式会社 | motorcycle body frame |
JPH023719Y2 (en) * | 1985-12-12 | 1990-01-29 | ||
JPH0516896Y2 (en) * | 1989-04-26 | 1993-05-07 | ||
WO2023119543A1 (en) * | 2021-12-23 | 2023-06-29 | 株式会社やまびこ | Control lever and work machine |
-
1980
- 1980-06-30 JP JP9064180U patent/JPS6038341Y2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20190004079A (en) * | 2017-07-03 | 2019-01-11 | 엘에스오토모티브테크놀로지스 주식회사 | Inhibitor switch for vehicle |
Also Published As
Publication number | Publication date |
---|---|
JPS5715111U (en) | 1982-01-26 |
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