JPH01142817A - Clutch operation structure for walking type lawn mower - Google Patents
Clutch operation structure for walking type lawn mowerInfo
- Publication number
- JPH01142817A JPH01142817A JP30116887A JP30116887A JPH01142817A JP H01142817 A JPH01142817 A JP H01142817A JP 30116887 A JP30116887 A JP 30116887A JP 30116887 A JP30116887 A JP 30116887A JP H01142817 A JPH01142817 A JP H01142817A
- Authority
- JP
- Japan
- Prior art keywords
- clutch
- operating
- lever
- interlocking
- clutch lever
- 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.)
- Pending
Links
- 230000007257 malfunction Effects 0.000 abstract 2
- 244000025254 Cannabis sativa Species 0.000 description 2
- 230000009849 deactivation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- Mechanical Control Devices (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、刈刃用クラッチを設けた歩行型芝刈り機のク
ラッチ操作構造に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a clutch operation structure for a walk-behind lawn mower provided with a cutting blade clutch.
上記歩行型芝刈り機において、従来、刈刃用クラッチの
人為操作のためのクラッチレバ−をクラッチ切り位置か
らクラッチ入り位置に切換えるための操作と、このクラ
ッチレバ−操作とは異なる操作との2つの人為操作をす
ることにより始めて刈刃が駆動されるように安全を図ら
れたものとして、例えば実公昭60−33785号公報
に示されるものがあった。すなわち、クラッチレバ−を
クラッチ切り位置にロックする固定機構をロック状態に
付勢された状態で設けると共に、前記固定機構の解除操
作のための人為操作具を設けることにより、刈刃用クラ
ッチの切り操作がされるとクラッチレバ−がクラッチ切
り位置に自動的にロックされ、このレバーロック解除操
作とクラッチレバ−の切換え操作とをすることで刈刃用
クラッチが入りになるよう構成されているのである。In the walk-behind lawn mower, conventionally, there are two operations: an operation for switching the clutch lever from a clutch disengaged position to a clutch engaged position for manual operation of the cutting blade clutch, and an operation different from this clutch lever operation. For example, Japanese Utility Model Publication No. 60-33785 discloses a safety device in which the cutting blade is driven only by one manual operation. That is, by providing a fixing mechanism that locks the clutch lever in the clutch disengaged position in a state in which it is biased to the locked state, and by providing a manual operating tool for releasing the fixing mechanism, it is possible to disengage the mower blade clutch. When the clutch lever is operated, the clutch lever is automatically locked in the clutch disengaged position, and the mower blade clutch is engaged by releasing the lever lock and switching the clutch lever. be.
従来の操作構造の場合、レバーロックの解除操作が必要
であることを失念されたり気付かずにクラッチレバ−に
無理に操作力を加えられ、クラッチレバ−や安全装置と
しての固定機構の変形や破損を招かれることがあった。In the case of the conventional operation structure, forcible operating force is applied to the clutch lever without forgetting or noticing that it is necessary to release the lever lock, resulting in deformation or damage to the clutch lever or the securing mechanism as a safety device. I was once invited.
本発明の目的は、上記安全策を講じ得るように、しかも
、誤操作による破損を回避できるようにすることにある
。An object of the present invention is to enable the above-mentioned safety measures to be taken and also to avoid damage caused by erroneous operation.
本発明による歩行型芝刈り機のクラッチ操作構造が特徴
構成とするところは、刈刃用クラッチの操作部と人為操
作用クラッチレバ−との連動部材を作用位置と作用解除
位置とに切換え自在に取付けると共に、前記連動部材を
作用解除位置に付勢するスプリング、及び、前記連動部
材を作用位置に人為操作する連動操作具を設けてあるこ
とにあり、その作用及び効果は次のとおりである。The clutch operation structure of the walk-behind lawn mower according to the present invention is characterized in that the interlocking member between the operating section of the cutting blade clutch and the manually operated clutch lever can be freely switched between an operating position and an operating release position. When attached, there is provided a spring that biases the interlocking member to the deactivation position, and an interlocking operation tool that manually operates the interlocking member to the operating position, and the functions and effects thereof are as follows.
連動部材は人為操作力を付与しない限りはスプリングの
ために作用解除位置になっており、連動操作具の操作に
より連動部材を作用位置に切換え操作してクラッチレバ
−と操作部とを連動状態にすると共にクラッチレバ−を
切り位置から入り位置に切換え操作することによって刈
刃用クラッチが入りになるのであり、連動部材−の切換
え操作をしないでクラッチレバ−の切換え操作のみをし
ただけでは、クラッチレバ−と操作部とが非連動状態に
あってクラッチレバ−のみが単独で空動きし、刈刃用ク
ラッチが入りにならない。The interlocking member is in the deactivated position due to the spring unless a human operating force is applied, and the interlocking member is switched to the active position by operating the interlocking operating tool, thereby interlocking the clutch lever and the operating section. At the same time, the mower blade clutch is engaged by switching the clutch lever from the disengaged position to the engaged position.If you only switch the clutch lever without switching the interlocking member, the clutch will not work properly. Since the lever and the operating section are not interlocked, only the clutch lever moves idly by itself, and the mowing blade clutch is not engaged.
連動部材の前記取付構成とスプリングとの作用により、
クラッチレバ−を入り位置に切換えるための操作と、こ
のクラッチレバ−操作とは異なるところの操作としての
連動部材用操作との2つの人為操作をすることで始めて
刈刃用クラッチが入りになるようにでき、冒記した安全
を図ることが可能になった。Due to the above-mentioned mounting structure of the interlocking member and the action of the spring,
The mower blade clutch can only be engaged by performing two manual operations: the operation to switch the clutch lever to the engaged position, and the operation of the interlocking member, which is an operation different from this clutch lever operation. This makes it possible to achieve the safety mentioned above.
しかも、クラッチレバ−に対する操作のみがされたとき
にはクラッチレバ−が空動きして操作力吸収をすること
により、クラッチレバ−操作のみをする誤操作がされて
も変形や破損が生じにくくなり、故障しにくい優れたも
のになった。Moreover, when only the clutch lever is operated, the clutch lever moves idly and absorbs the operating force, making it less likely to be deformed or damaged even if the clutch lever is operated erroneously. It became difficult and excellent.
次に実施例を示す。 Next, examples will be shown.
第7図に示すように、左右一対の前車輪(1)。As shown in FIG. 7, a pair of left and right front wheels (1).
(1)及び後車輪(2) 、 (2)が取付けられ、か
つ、刈刃(3)が縦軸芯周りで回動するように内装され
た刈刃ハウジング(4)の上部に後車輪(2)及び刈刃
(3)を駆動するためのエンジン(E)を取付けると共
に、刈刃ハウジング(4)の後部に操縦ハンドル(5)
及び集草容器(6)を付設して、自走式の歩行型芝刈り
機を構成しである。(1) and the rear wheels (2), the rear wheels (2) are attached to the upper part of the cutting blade housing (4) which is internally installed so that the cutting blade (3) rotates around the vertical axis. 2) and an engine (E) for driving the cutting blade (3), and a control handle (5) at the rear of the cutting blade housing (4).
A self-propelled walk-behind lawn mower is constructed by attaching a grass collecting container (6) and a grass collecting container (6).
第1図ないし第3図に示すように、刈刃(3)に対する
エンジン動力の伝達を入り切りするように刈刃ハウジン
グ(4)に内装された刈刃用クラッチ(C)にレリーズ
ワイヤ(7)を介して連結した第5図の如き刈刃用クラ
ッチ(C)の操作部(8)を、第6図の如き形状のクラ
ッチレバ−(9)、レバー枢支ピン(10)、レバー取
付部材(11)を介してクラッチレバ−(9)と同一の
軸芯(p+)の周りで相対揺動するように操縦ハンドル
(5)に取付けると共に、操作部(8)の基端部(8a
)がレバー取付部材(11)の下向き面箇所に接当した
下降位置(ON)に操作部(8)がなると刈刃用クラッ
チ(C)が自己復元力によって切り状態になるように構
成しである。クラッチレバ−(9)にこれの一端部に一
体揺動するように付勢した第5図の如き取付アーム(1
2)、枢着ピン(13)を介してロッド製の連動部材(
14)を取付けである。この連動部材(14)はクラッ
チレバ−(9)と操作部(8)とを解除自在に連動させ
るものであり、第3図及び第4図に仮想線で示す如く遊
端側が操作部(8)の保合用孔(8b)に入り込んで操
作部(8)と取付アーム(12)とが一体に揺動するよ
うに操作部(8)に係合した作用位置と、実線で示す如
く遊端側が操作部(8)から離脱して操作部(8)と取
付アーム(14)との相対揺動が可能なように前記係合
を解除した作用解除位置とに枢着ピン(13)の軸芯(
P2)の周りでの揺動によって切換わるように構成しで
ある。連動部材(14)にこれを切換え操作するための
レバー式の連動操作具(15)を一体に形成し、この連
動操作具(15)の基端側に作用させたスプリング(1
6)により連動部材(14)が前記作用解除位置に切換
え付勢されるように構成すると共に、取付アーム(12
)の遊端側と、操作部(8)に備えであるストッパ一部
(8c)とが接当するところの位置関係にタラソチレバ
ー(9)と操作部(8)とがある状態においてのみ連動
部材(14)の遊端側と保合用孔(8b)とが合致する
ように構成してあり、そして、このことと、操作部(8
)が刈刃用クラッチ(C)の切り復元力のために前記下
降位置(DN)に揺動付勢されることとにより、下降位
置(DN)にある操作部(8)に対して前記位置関係に
なるところの第1図に示す如きクラッチ切り位置(OF
F)にクラッチレバ−(9)がある状態においてのみ、
連動操作具(15)を軸芯(P2)の周りでクラッチレ
バ−(9)の縦杆部分(9a)と離間した連動切り位置
(OUT)から前記縦杆部分(9a)に近接した連動入
り位置(IN)に人為揺動操作することで連動部材(1
4)を作用解除位置から作用位置に切換え操作できて、
タラソチレバー(9)と操作部(8)とを連動状態にで
きるように 、構成しである。そして、この連動状態で
タラッチレバー(9)を第2図に示す如く遊端側が操縦
ハンドル(5)の握り部(5a)に近接して操縦ハンド
ル(5)との共握り操作が可能となるクラッチ入り位置
(ON)に軸芯(P、)の周りで切換え揺動操作するこ
とにより、操作部(8)が上昇位置(UP)になって刈
刃用クラッチ(C)が入りになるように、かつ、この際
には、刈刃用クラッチ(C)の切り復元力、クラッチレ
バ−(9)の人為操作、及び、保合孔(8b)の径が連
動部材(14)の外径より若干大であることの夫々に起
因し、操作部(8)と取付アーム(12)とが若干相対
揺動して連動部材(14)の外止め突起(14a)と操
作部(8)とが接当することにより、連動操作具(15
)を連動入り位置(IN)に維持する人為操作を要する
ことなく、連動部材(14)がスプリング(16)の作
用力にかかわらず作用位置に維持されるようにしである
。As shown in Figures 1 to 3, a release wire (7) is attached to a mower blade clutch (C) built into the mower housing (4) to turn on and off the transmission of engine power to the mower blade (3). The operation part (8) of the cutting blade clutch (C) as shown in FIG. (11) to the operating handle (5) so as to be relatively swingable around the same axis (p+) as the clutch lever (9).
) is in contact with the downward facing surface of the lever mounting member (11) and the operating portion (8) is in the lowered position (ON), the mowing blade clutch (C) is configured to be in the disengaged state by a self-restoring force. be. A mounting arm (1) as shown in FIG.
2), a rod interlocking member (
14) is the installation. This interlocking member (14) releasably interlocks the clutch lever (9) and the operating section (8), and the free end side is connected to the operating section (8) as shown by the imaginary lines in FIGS. 3 and 4. ) into the retaining hole (8b) and engaged with the operating part (8) so that the operating part (8) and the mounting arm (12) swing together, and the free end as shown by the solid line. The axis of the pivot pin (13) is moved to the release position where the side is disengaged from the operating part (8) and the engagement is released so that relative rocking between the operating part (8) and the mounting arm (14) is possible. core(
P2) is configured to be switched by swinging around P2). A lever-type interlocking operation tool (15) for switching the interlocking member (14) is integrally formed, and a spring (1) is applied to the proximal end of the interlocking operation tool (15).
6) so that the interlocking member (14) is switched to the deactivation position and biased, and the mounting arm (12)
) The interlocking member is activated only when the thalassotile lever (9) and the operating section (8) are in a positional relationship where the free end side of the operating section (8) comes into contact with a part of the stopper (8c) that is a provision for the operating section (8). The free end side of (14) and the retaining hole (8b) are configured to match.
) is oscillated to the lowered position (DN) due to the restoring force of the cutting blade clutch (C), so that the mower blade clutch (C) is pivoted to the lowered position (DN) with respect to the operating part (8) in the lowered position (DN). The clutch disengagement position (OF
Only when the clutch lever (9) is in F),
The interlock operating tool (15) is moved around the axis (P2) from an interlock cut position (OUT) spaced apart from the vertical rod portion (9a) of the clutch lever (9) to an interlocking position close to the vertical rod portion (9a). By manually swinging the interlocking member (1) to the position (IN),
4) can be switched from the action release position to the action position,
The configuration is such that the thalassotile lever (9) and the operating section (8) can be linked. In this interlocking state, the free end of the tarlatch lever (9) approaches the grip portion (5a) of the control handle (5) as shown in Fig. 2, and the clutch can be operated together with the control handle (5). By switching and swinging around the axis (P, ) to the engaged position (ON), the operating part (8) becomes the raised position (UP) and the mower blade clutch (C) is engaged. , and in this case, the restoring force of the cutting blade clutch (C), the manual operation of the clutch lever (9), and the diameter of the retaining hole (8b) are smaller than the outer diameter of the interlocking member (14). Due to the slightly larger sizes, the operating portion (8) and the mounting arm (12) swing slightly relative to each other, causing the external retaining protrusion (14a) of the interlocking member (14) and the operating portion (8) to By making contact, the interlocking operation tool (15
) in the engaged position (IN), and the interlocking member (14) is maintained in the active position regardless of the acting force of the spring (16).
そして、クラッチレバ−(9)をクラッチ入り位置(O
N)に維持する握り操作を解除すると、クラッチレバ−
(9)がクラッチ切り位置(OFF>に、かつ、操作部
(8)が下降位W(DN)に夫々刈刃用フランチ(C)
の切り復元力のために自動的に戻し操作されると共に、
連動部材(14)がスプリング(16)のために作用解
除位置に自動的に切換わるように構成しである。Then, move the clutch lever (9) to the clutch engaged position (O
N) When you release the grip operation, the clutch lever
(9) is in the clutch disengaged position (OFF>) and the operating part (8) is in the lowered position W (DN), respectively, and the mower blade flange (C)
Automatically returns to its original position for cutting resilience.
The interlocking member (14) is configured to automatically switch into the deactivated position due to the spring (16).
要するに、クラッチレバ−(9)をクラッチ入り位W
(ON)に切換える操作のみをしただけでは刈刃用クラ
ッチ(C)は入りにならず、連動操作具(15)をして
連動部材(14)を作用位置に切換える操作と、クラッ
チレバ−(9)をクラッチ入り位置(ON)に切換える
操作との両操作をすることにより始めて刈刃用クラッチ
(C)が入りになって刈刃(3)が駆動されるのである
。そして、クラッチ入り位置(ON)に操作したクラッ
チレバ−(9)を操縦ハンドル(5)と共に握り操作す
ることにより、刈刃用クラッチ(C)を入り状態に維持
しながら作業するのである。In short, move the clutch lever (9) to the clutch engagement position W.
(ON), the mowing blade clutch (C) will not engage, but it is necessary to operate the interlocking operation tool (15) to switch the interlocking member (14) to the operating position, and then turn the clutch lever ( 9) to the clutch engaged position (ON), the mower blade clutch (C) is engaged and the mower blade (3) is driven. Then, by gripping and operating the clutch lever (9) which has been operated to the clutch engaged position (ON) together with the operating handle (5), the work is carried out while maintaining the cutting blade clutch (C) in the engaged state.
尚、第1図及び第2図に示す操作レバー(17)は走行
用クラッチ(図示せず)を操作するためのものである。The operating lever (17) shown in FIGS. 1 and 2 is for operating a traveling clutch (not shown).
第8図は連動機構の別実施例であり、前記実施構造とは
次の点において相違するのである。FIG. 8 shows another embodiment of the interlocking mechanism, which differs from the above embodiment structure in the following points.
すなわち、連動部材(14)及び連動操作具(15)を
クラッチレバ−(9)の揺動軸芯(P、)に沿う方向の
摺動により、操作部(8)に係合した作用位置と操作部
(8)から離脱した作用解除位置とに切換わるように、
あるいは、クラッチレバ−(9)の縦杆部分(9a)に
近接した連動入り位置(IN)と前記縦杆部分(9a)
から離間した連動切り位置(OUT)とに切換わるよう
にクラッチレバ−(9)に取付けである。That is, by sliding the interlocking member (14) and the interlocking operating tool (15) in the direction along the swing axis (P, ) of the clutch lever (9), the operating position where the interlocking member (14) and the interlocking operating tool (15) are engaged with the operating portion (8) is achieved. so as to switch to the action release position separated from the operating part (8).
Alternatively, the interlocking position (IN) close to the vertical rod portion (9a) of the clutch lever (9) and the vertical rod portion (9a)
It is attached to the clutch lever (9) so that it can be switched to the interlocking cut position (OUT), which is spaced from the clutch lever (9).
尚、操作部(8)とクラッチレバ−(9)の連動機構を
構成するに、連動操作具をクラッチレバ−との共握りで
操作することによって連動部材を作用位置に維持操作す
るようにして実施してもよい。The interlocking mechanism between the operating portion (8) and the clutch lever (9) is configured such that the interlocking member is maintained at the operating position by operating the interlocking operating tool with the clutch lever. May be implemented.
尚、特許請求の範囲の項に図面との対照を便利にする為
に符号を記すが、該記入により本発明は添付図面の構造
に限定されるものではない。Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.
図面は本発明に係る歩行型芝刈り機のクラッチ操作構造
の実施例を示し、第1図及び第2図はクラッチレバ−配
設部の側面図、第3図は連動部材配設部の後面図、第4
図は操作部の断面図、第5図は操作部及び取付アームの
斜視図、第6図はクラッチレバ−の後面図、第7図は歩
行型芝刈り機全体の側面図、第8図は別実施連動機構の
一部切欠き後面図である。
(8)・・・・・・操作部、(9)・・・・・・クラッ
チレバ−1(14)・・・・・・連動部材、(15)・
・・・・・連動操作具、(16)・・・・・・スプリン
グ、(C)・・・・・・刈刃用クラッチ。The drawings show an embodiment of the clutch operation structure for a walk-behind lawn mower according to the present invention, and FIGS. 1 and 2 are side views of the clutch lever arranging part, and FIG. 3 is a rear view of the interlocking member arranging part. Figure, 4th
Figure 5 is a sectional view of the operating section, Figure 5 is a perspective view of the operating unit and mounting arm, Figure 6 is a rear view of the clutch lever, Figure 7 is a side view of the entire walk-behind lawn mower, and Figure 8 is a side view of the entire walk-behind lawn mower. FIG. 7 is a partially cutaway rear view of another implementation interlocking mechanism. (8)......Operation unit, (9)...Clutch lever 1 (14)...Interlocking member, (15)...
...Interlocking operation tool, (16) ...Spring, (C) ...Mower blade clutch.
Claims (1)
ッチレバー(9)との連動部材(4)を作用位置と作用
解除位置とに切換え自在に取付けると共に、前記連動部
材(14)を作用解除位置に付勢するスプリング(16
)、及び、前記連動部材(14)を作用位置に人為操作
する連動操作具(15)を設けてある歩行型芝刈り機の
クラッチ操作構造。The interlocking member (4) between the operating part (8) of the mowing blade clutch (C) and the manually operated clutch lever (9) is attached so as to be switchable between an operating position and an action release position, and the interlocking member (14) A spring (16
), and an interlocking operating tool (15) for manually operating the interlocking member (14) to an operating position.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP30116887A JPH01142817A (en) | 1987-11-28 | 1987-11-28 | Clutch operation structure for walking type lawn mower |
US07/274,116 US4882897A (en) | 1987-11-28 | 1988-11-21 | Clutch control structure for a walking operator type lawn mower |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP30116887A JPH01142817A (en) | 1987-11-28 | 1987-11-28 | Clutch operation structure for walking type lawn mower |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH01142817A true JPH01142817A (en) | 1989-06-05 |
Family
ID=17893612
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP30116887A Pending JPH01142817A (en) | 1987-11-28 | 1987-11-28 | Clutch operation structure for walking type lawn mower |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH01142817A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100431099B1 (en) * | 2001-04-20 | 2004-05-12 | 혼다 기켄 고교 가부시키가이샤 | Walk-behind, self-propelled working machine |
US8001836B2 (en) | 2006-11-15 | 2011-08-23 | Toyota Jidosha Kabushiki Kaisha | Pedal operation amount detecting apparatus |
-
1987
- 1987-11-28 JP JP30116887A patent/JPH01142817A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100431099B1 (en) * | 2001-04-20 | 2004-05-12 | 혼다 기켄 고교 가부시키가이샤 | Walk-behind, self-propelled working machine |
US8001836B2 (en) | 2006-11-15 | 2011-08-23 | Toyota Jidosha Kabushiki Kaisha | Pedal operation amount detecting apparatus |
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