JPH0645428U - Mower - Google Patents
MowerInfo
- Publication number
- JPH0645428U JPH0645428U JP8214992U JP8214992U JPH0645428U JP H0645428 U JPH0645428 U JP H0645428U JP 8214992 U JP8214992 U JP 8214992U JP 8214992 U JP8214992 U JP 8214992U JP H0645428 U JPH0645428 U JP H0645428U
- Authority
- JP
- Japan
- Prior art keywords
- blade
- blades
- present
- eccentric cam
- gear
- 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.)
- Withdrawn
Links
Abstract
(57)【要約】
【目的】 本考案は草や木の小枝等を切断する刈込機に
関するものであり、その目的は、切り刃間に切断しきれ
ない物質を噛み込み切り刃の往復運動が急激に停止した
場合でも変速機構部が破損しないようにすることであ
る。
【構成】 本考案刈込機は、回転運動をするモータ軸１
と、該モータ軸１の回転運動を変速伝達するギヤ２と、
ギヤ２に固定されている偏心カム３と、該偏心カム３に
嵌合され、本考案嵌合部を構成するブレード４、ブレー
ド６と、これらブレード４、６の夫々に本考案弾性体を
構成するスプリング１０、１１を介して連結された本考
案切り刃部を構成するブレード５、７とを備えてなる。
(57) [Abstract] [Purpose] The present invention relates to a trimming machine for cutting grass and twigs of trees. This is to prevent the transmission mechanism part from being damaged even when it suddenly stops. [Structure] The mower according to the present invention has a motor shaft 1 that makes a rotary motion.
And a gear 2 for transmitting the rotational movement of the motor shaft 1 at a variable speed,
An eccentric cam 3 fixed to the gear 2, a blade 4 and a blade 6 which are fitted to the eccentric cam 3 and constitute a fitting portion of the present invention, and the blades 4 and 6 each constitute an elastic body of the present invention. And the blades 5 and 7 constituting the cutting edge portion of the present invention, which are connected via the springs 10 and 11.
Description
【０００１】[0001]
本考案は草や木の小枝等を切断する刈込機に関するものである。 The present invention relates to a trimming machine that cuts grass and twigs of trees.
【０００２】[0002]
従来の刈込機は、図４の様にモータの回転をモータ軸１の先端に設けられたピ ニオンにより、偏心して配設された２枚の円板から成る偏心カム３が備えられた ギヤ２に伝達され、ギヤ２の回転運動に伴う偏心カム３の偏心回転運動により該 偏心カム３に嵌合されたブレード１７、１８を互いに往復運動させる構造であっ た。 As shown in FIG. 4, a conventional mower has a gear 2 provided with an eccentric cam 3 composed of two discs eccentrically arranged by a pinion provided at the tip of a motor shaft 1 for rotation of the motor. And the blades 17 and 18 fitted to the eccentric cam 3 reciprocate with each other due to the eccentric rotational motion of the eccentric cam 3 which is transmitted to the eccentric cam 3.
【０００３】[0003]
従来の刈込機は、ギヤの組合わせによる変速機構部を持っており、上下のブレ ード１７、１８間に針金等の硬い物質を噛み込んだ場合、切断しきれずに上下の ブレード１７、１８が急激に停止し、その結果モータの回転動力により変速機構 部に異常に大きな伝達トルクが急激に加わり、前記ピニオンやギヤ２が破損する という問題があった。 本考案の目的は、上記した従来技術における問題をなくし、この種刈込機の変 速機構部を保護することである。 Conventional mowers have a gear changing mechanism that combines gears. When a hard substance such as wire is caught between upper and lower blades 17 and 18, the upper and lower blades 17 and 18 cannot be cut. Suddenly stops, and as a result, an abnormally large transmission torque is suddenly applied to the transmission mechanism due to the rotational power of the motor, and the pinion and the gear 2 are damaged. An object of the present invention is to eliminate the above-mentioned problems in the prior art and protect the speed change mechanism portion of this seed mower.
【０００４】[0004]
上記目的は往復運動するブレードを切り刃部と嵌合部に分け、これら切り刃部 と嵌合部を伸縮自在な弾性体で連結させることにより達成される。 The above object is achieved by dividing the reciprocating blade into a cutting blade portion and a fitting portion, and connecting the cutting blade portion and the fitting portion with a stretchable elastic body.
【０００５】[0005]
上記の様に構成された刈込機は、上下のブレードの切り刃間に切断しきれない 物質を噛み込んだ場合、上下のブレード各々の切り刃部は停止状態になるが、嵌 合部は弾性体を伸縮させながら往復運動を続けるので、モータ軸及び変速機構部 のギヤは停止することなく回転状態を維持する。 With the trimmer configured as described above, when a substance that cannot be cut is caught between the upper and lower blades, the upper and lower blades are in a stopped state, but the fitting part is elastic. Since the reciprocating motion continues while the body expands and contracts, the motor shaft and the gears of the transmission mechanism do not stop but maintain the rotating state.
【０００６】[0006]
以下実施例図面を参照して本考案を説明する。通常運転時、モータ軸１の回転 はギヤ２に伝達されギヤ２に備えられた偏心カム３の偏心回転運動により、該偏 心カム３に嵌合されたブレード４、６及びこれらブレード４、６にスプリング１ ０、１１を介して連結されたブレード５、７が往復運動される。図２はブレード ４〜７の連結部を示すもので、ブレード４とブレード５、ブレード６とブレード ７は夫々スプリング１０、スプリング１１により連結され、更にこれらブレード ４〜７はホルダプレート８、ブレードホルダ９により挾まれボルト１２、ナット １３等により上下方向に拘束される。図３は通常運転中にブレード５の切り刃１ ４及びブレード７の切り刃１５の間に切断しきれない物質１６を噛み込み、ブレ ード５、ブレード７が急激に停止した状態を示すもので、ブレード５、７が停止 しても、ブレード４、６はスプリング１０、１１を伸縮させながら往復運動を続 け、モータ軸１、ギヤ２は停止することなく回転し続ける。 The present invention will be described below with reference to the accompanying drawings. During normal operation, the rotation of the motor shaft 1 is transmitted to the gear 2 and the eccentric rotation motion of the eccentric cam 3 provided on the gear 2 causes the blades 4, 6 fitted to the eccentric cam 3 and the blades 4, 6 The blades 5, 7 connected to the springs 10, 11 via the springs 10, 11 are reciprocated. FIG. 2 shows a connecting portion of the blades 4 to 7. The blade 4 and the blade 5, the blade 6 and the blade 7 are connected by a spring 10 and a spring 11, respectively, and these blades 4 to 7 are a holder plate 8 and a blade holder. It is clamped by 9 and is restrained in the vertical direction by bolts 12, nuts 13 and the like. FIG. 3 shows a state in which the blade 5 and the blade 7 are suddenly stopped by biting the substance 16 which cannot be completely cut between the cutting blade 14 of the blade 5 and the cutting blade 15 of the blade 7 during normal operation. Even if the blades 5 and 7 stop, the blades 4 and 6 continue the reciprocating motion while expanding and contracting the springs 10 and 11, and the motor shaft 1 and the gear 2 continue to rotate without stopping.
【０００７】[0007]
本考案によれば、上下のブレードの各々を切り刃部と嵌合部に分割し、夫々を 伸縮自在な弾性体で連結するようにしたので、上下のブレードの切り刃間に切断 しきれない物質を噛み込み、上下のブレード切り刃部が急激に停止してもブレー ド嵌合部は弾性体を伸縮させながら往復運動を行い、モータや変速機構部のギヤ は停止されることなく回転し続けるので、ギヤが急激に停止し、モータからの伝 達トルクにより破損することはない。 According to the present invention, each of the upper and lower blades is divided into a cutting blade portion and a fitting portion, and each of them is connected by a stretchable elastic body, so that it is not possible to cut between the cutting blades of the upper and lower blades. Even if the material is caught and the upper and lower blade cutting edges suddenly stop, the blade fitting part reciprocates while expanding and contracting the elastic body, and the motor and gears of the speed change mechanism part rotate without stopping. As it continues, the gear stops suddenly and is not damaged by the torque transmitted from the motor.
【図面の簡単な説明】[Brief description of drawings]
【図１】 本考案刈込機の一実施例を示す一部断面側面
図。FIG. 1 is a partial sectional side view showing an embodiment of the trimmer of the present invention.
【図２】 図１のブレード組立体を示す展開斜視図。2 is a developed perspective view showing the blade assembly of FIG. 1. FIG.
【図３】 図１の刈込機による刈込状態を示す一部断面
側面図。3 is a partial cross-sectional side view showing a trimmed state by the trimmer shown in FIG. 1. FIG.
【図４】 従来の刈込機の一例を示す一部断面側面図。FIG. 4 is a partial cross-sectional side view showing an example of a conventional trimmer.
１はモータ軸、２はギヤ、３は偏心カム、４〜７はブレ
ード、１２、１３は切り刃である。Reference numeral 1 is a motor shaft, 2 is a gear, 3 is an eccentric cam, 4 to 7 are blades, and 12 and 13 are cutting blades.
Claims (1)
復運動に変換し、定間隔を置いて所要数の山形状の切り
刃を形成したブレードを２枚重ね合わせて成るブレード
組立体の少なくとも一方のブレードを往復運動させて草
や木の小枝等を切断する刈込機であって、 前記往復運動するブレードを切り刃部と嵌合部に分け、
これら切り刃部と嵌合部を伸縮自在な弾性体で連結させ
たことを特徴とする刈込機。1. A blade assembly comprising at least two blades formed by superposing two blades, each of which converts a rotational movement of a motor into a reciprocating movement via an eccentric cam and forms a required number of mountain-shaped cutting blades at regular intervals. A mower for reciprocating one blade to cut grass or tree twigs, etc., wherein the reciprocating blade is divided into a cutting blade portion and a fitting portion,
A mower characterized in that the cutting blade portion and the fitting portion are connected by a stretchable elastic body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8214992U JPH0645428U (en) | 1992-11-27 | 1992-11-27 | Mower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8214992U JPH0645428U (en) | 1992-11-27 | 1992-11-27 | Mower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0645428U true JPH0645428U (en) | 1994-06-21 |
Family
ID=13766387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8214992U Withdrawn JPH0645428U (en) | 1992-11-27 | 1992-11-27 | Mower |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0645428U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015512619A (en) * | 2012-02-17 | 2015-04-30 | フスクバルナ アクティエボラーグ | Hand-held motor-driven cutting device |
| WO2017092781A1 (en) * | 2015-11-30 | 2017-06-08 | Husqvarna Ab | Blade arrangement for hand-held power tool and clamping member |
-
1992
- 1992-11-27 JP JP8214992U patent/JPH0645428U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015512619A (en) * | 2012-02-17 | 2015-04-30 | フスクバルナ アクティエボラーグ | Hand-held motor-driven cutting device |
| WO2017092781A1 (en) * | 2015-11-30 | 2017-06-08 | Husqvarna Ab | Blade arrangement for hand-held power tool and clamping member |
| US10631468B2 (en) | 2015-11-30 | 2020-04-28 | Husqvarna Ab | Blade arrangement for hand-held power tool and clamping member |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19970306 |