JP4056814B2

JP4056814B2 - Hand-held lawn mower

Info

Publication number: JP4056814B2
Application number: JP2002205762A
Authority: JP
Inventors: 真二小川; 敏成山岡
Original assignee: Ryobi Ltd
Current assignee: Ryobi Ltd
Priority date: 2002-07-15
Filing date: 2002-07-15
Publication date: 2008-03-05
Anticipated expiration: 2022-07-15
Also published as: JP2004041140A

Description

【０００１】
【発明の属する技術分野】
本発明は、切屑を受け止めるレシーバを備えた手持式芝刈機に関する。
【０００２】
【従来の技術及び発明が解決しようとする課題】
特開２０００−８３４７５が開示する手持式芝刈機は上下に重なり合う櫛状の切断刃を互いに逆向きに往復角運動させることで草木を刈り込むようになっているが、このような手持式芝刈機で草木を刈ると、切屑はそのまま落下するので、後の清掃が面倒である。
【０００３】
また、実開平３−７４２２７が開示する手持式芝刈機は、上下に重なり合う櫛状の切断刃を互いに逆向きに往復直線運動させることで草木を刈り込むようになっており、この切断刃の中央に沿って配置される切屑の捕集部材を備えるが、この捕集部材は切断刃の板状押え板にボルト・ナットにより固着されるので、捕集部材の着脱が不自由であり、また手持式芝刈機の清掃作業の邪魔になる。
【０００４】
【課題を解決するための手段】
上記問題点を解決するため、請求項１に係る発明は、櫛状の切断刃（２）をハウジング（１）の前方に備え、当該切断刃の左右への往復角運動により刈り込みを行う手持式芝刈機であって、前記切断刃からハウジングにかけて当該切断刃による刈り込みにより生じた切屑を受け止めるレシーバ（５）を具備し、前記レシーバは、前記切断刃の下部に対向して配置される底板（６）と、前記底板の側方及び後方に立設される背板（７）と、を備えていることを特徴とする。
また、請求項２に係る発明は、請求項１に係る発明において、前記レシーバは、前記ハウジングに着脱可能に設けられていることを特徴とする。
また、請求項３に係る発明は、請求項１に係る発明において、前記レシーバは、前記ハウジングに対してその取付位置が上下方向に変更可能に設けられていることを特徴とする。
また、請求項４に係る発明は、請求項１に記載の発明において、前記ハウジング又は前記レシーバには、嵌合によって前記ハウジングに対する前記レシーバの前後方向の移動を規制する凹部（９）又は凸部（１０）が設けられており、当該凹部又は凸部のいずれか一方が、前記ハウジングの両側部に配置され、前記凹部又は凸部のいずれか他方が、前記レシーバの背板に配置され、前記ハウジング又は前記レシーバに設けられた凹部及び凸部を嵌合させて、前記レシーバが前記ハウジングに着脱可能に取り付けられることを特徴とする。
また、請求項５に係る発明は、請求項４に記載の発明において、前記レシーバは、前記底板の後方に突出して設けられる係止片（１１）を更に具備し、前記ハウジングへの前記レシーバの取付時に、前記係止片を前記ハウジングの底部に弾性変形を伴って接触させることを特徴とする。
また、請求項６に係る発明は、請求項１に記載の発明において、前記レシーバは、前記背板から前記ハウジングの両側面に沿って後方に突出する取付板を備え、前記取付板には、上下方向に延びる孔部が形成されており、前記孔部を介してネジ（１５）により前記ハウジングに前記取付板を取り付けることで、前記レシーバを前記ハウジングに取り付けて、前記レシーバが前記ハウジングに着脱可能に取り付けられ、前記レシーバは、前記孔部に対する前記ネジの位置を変更することにより、その取付位置が上下方向に変更可能になっていることを特徴とする。
【０００７】
【発明の実施の形態】
次に、本発明の実施の形態を図面を参照して説明する。
【０００８】
＜実施の形態１＞
図１乃至図４に示すように、この手持式芝刈機は、ハウジング１と、ハウジング１からその前方に突出する切断刃２とを具備する。
【０００９】
ハウジング１は例えば左右二つ割りの割り型を結合させることにより形成される。ハウジング１の後部にはハンドル３が一体的に設けられる。ハンドル３の内側にはＯＮ・ＯＦＦスイッチのトリガー４が設けられる。図示しないが、ハウジング１の内部には、原動部、伝動部等が収納される。原動部としては例えばモータが用いられ、伝動部としては例えばカム装置が用いられる。ハンドル３を持つ手の指でトリガー４を操作し、ＯＮ・ＯＦＦスイッチをＯＮ・ＯＦＦ切換えすることにより、モータが起動し又は停止する。
【００１０】
切断刃２は、櫛状の上刃２ａと同じく櫛状の下刃２ｂとを重ね合わせたうえで図示しない枢ピンで連結することにより構成される。枢ピンを支点にして上下刃２ａ，２ｂが左右に往復角運動すると、櫛状の歯が繰り返し交差して草木を切断する。図示しないが上下刃２ａ，２ｂの枢ピンより後方の部分には、それぞれ長孔が形成され、各長孔に上記カム装置の上下のカムが嵌まり込む。上下のカムは位相が１８０度ずれるように一体化されている。原動部のモータの起動によりカムが回転すると、上下刃２ａ，２ｂは互いに反対向きに往復角運動を行い、櫛状の歯間に入る草木を切断する。
【００１１】
ハウジング１には、図５及び図６に示すレシーバ５が、図１乃至図４に示すように着脱可能に取り付けられる。
【００１２】
レシーバ５は、櫛状の切断刃２による刈り込みにより生じた切屑を受け止めるための捕集具であり、図５及び図６に示すように、手持式芝刈機の左右方向に延びる底板６と、底板６の後部から斜め後方に立ち上がる背板７とを具備する。レシーバ５は例えば樹脂の射出成形、金属板のプレス成形等により望ましくは一体に形成される。底板６及び背板７の中央部にはハウジング１の前部が嵌り込む略Ｕ字形の切欠８が形成される。図１乃至図４に示すように、レシーバ５がハウジング１に取り付けられると、底板６、背板７及びハウジング１との間に切屑を受け止める捕集部が形成される。底板６の前端６ａは、切断作業に支障を来たさないように切断刃２の櫛状の歯よりややハウジング１側に後退している。
【００１３】
この実施の形態では、レシーバ５は次のような着脱手段を介してハウジング１に着脱自在に取り付けられる。
【００１４】
すなわち、図５及び図６に示すように、背板７の切欠８に臨む箇所に一対の凹部９が形成され、図１乃至図４に示すように、ハウジング１の左右の側面には各凹部９に嵌まり込む凸部１０が形成される。凸部１０はハウジング１の左右の側面から水平に突出する丸軸として形成され、凹部９は各凸部１０である丸軸が入り込む丸穴として形成される。凹部９である丸穴の下部にはレシーバ５をハウジング１に着脱する際に凸部１０を通すための開口９ａが形成される。図１乃至図４に示すように、凹凸部９，１０の嵌合によりレシーバ５は前後方向に動かないようハウジング１に取り付けられる。また、図５及び図６に示すように、レシーバ５の底板６の後縁から切欠８内へと係止片１１が舌状に突出する。図２乃至図４に示すように、この係止片１１がハウジング１の底面１ａに弾性変形を伴って接触することにより、レシーバ５は凹凸部９，１０を支点に上下に回動しないようハウジング１に固定される。
【００１５】
このレシーバ５は切断刃２の左右縁よりもさらに外側へと大きく突出するように形成してもよいが、望ましくは図１、図３及び図４に示すように、左右縁５ａ，５ｂが切断刃２の左右両側に対応するように形成される。この場合もレシーバ５の左右縁５ａ，５ｂは切断刃２の左右両側よりも多少突出するが、その突出量は例えば数ｍｍ程度である。芝草等を際刈りする場合、このレシーバ５の左右縁５ａ，５ｂをガイドとして図示しないブロック塀等に沿ってスライドさせれば、刈り取り作業が効率化される。
【００１６】
次に、この手持式芝刈機の作用について説明する。
【００１７】
まず、レシーバ５を切断刃２の下方からハウジング１に近づけて係止片１１をハウジング１の底面１ａに当て、続いてレシーバ５を後方向にスライドさせ、レシーバ５の凹部９をハウジング１の凸部１０に対向させる。そこで、レシーバ５又は係止片１１を撓ませて凹部９内に凸部１０を嵌め込む。
【００１８】
レシーバ５は、図１乃至図４に示すように、凹凸部９，１０の嵌合、係止片１１のハウジング底面１ａへの係止、切欠８内へのハウジング１の挿入等により、ハウジング１に固定される。
【００１９】
そこで、手持式芝刈機のハンドル３を持ちトリガー４を引くと、モータが起動し、切断刃２の上下刃２ａ，２ｂが左右に往復角運動を行う。この切断刃２を草木に当てることにより、草木が刈り込まれる。
【００２０】
刈り込みにより生じた切屑は手持式芝刈機下に落下することなくレシーバ５の底板６と背板７との間の空所に受け止められレシーバ５上に蓄積する。
【００２１】
レシーバ５をハウジング１から外すには、レシーバ５を上方向に押し上げるようにしてレシーバ５と係止片１１を弾性変形させ、凹凸部９，１０を離反させる。続いてレシーバ５をハウジング１の前方へとスライドさせ、係止片１１をハウジング１の底面１ａから離脱させる。
【００２２】
これにより、レシーバ５は手持式芝刈機から取り外され、レシーバ５と手持式芝刈機はそれぞれ清掃等に付される。
【００２３】
＜実施の形態２＞
図７乃至図９に示すように、この実施の形態２では、実施の形態１の場合と異なり、レシーバ５とハウジング１に形成される凹凸部９，１０がそれぞれ角穴と角軸により形成される。具体的には、凸部１０が板片として形成され、凹部９が板片の嵌まり込む矩形穴として形成される。
【００２４】
このように凹凸部９，１０が角穴と角軸により形成されるとレシーバ５は上下方向に回動し難くなるので、係止片１１は省略可能である。
【００２５】
なお、この実施の形態２において実施の形態１における部分と同一部分には同じ符号を付して示すこととしその詳細な説明は省略する。
【００２６】
＜実施の形態３＞
図１０乃至図１２に示すように、この実施の形態３では、実施の形態１及び実施の形態２の場合と異なり、レシーバ５をハウジング１に取り付けるための凹部９がハウジング１の左右の側面に形成され、凸部１０がレシーバ５の切欠８に臨む箇所に形成される。
【００２７】
この凹凸部９，１０は実施の形態１の場合のように丸穴及び丸軸とすることもできる。係止片１１は必要に応じて設けることが可能である。
【００２８】
なお、この実施の形態３において実施の形態１又は実施の形態２における部分と同一部分には同じ符号を付して示すこととしその詳細な説明は省略する。
【００２９】
＜実施の形態４＞
図１３及び図１４に示すように、この実施の形態４では、実施の形態１乃至実施の形態３の場合と異なり、ハウジング１の底板部１ｂがハウジング本体に対して着脱自在に形成され、レシーバ５がこのハウジング１の底板部１ｂと一体的に形成される。ハウジング１の底板部１ｂをハウジング本体に対し着脱するために、底板部１ｂの左右縁と後縁にはそれぞれ嵌合片１２とバネ片１３が設けられる。
【００３０】
ハウジング１の底板部１ｂがハウジング本体に嵌め込まれると同時にレシーバ５がハウジング１に装着され、ハウジング１の底板部１ｂがハウジング本体から取り外されると同時にレシーバ５がハウジング１から除去される。
【００３１】
なお、この実施の形態４において実施の形態１乃至実施の形態３における部分と同一部分には同じ符号を付して示すこととしその詳細な説明は省略する。
【００３２】
＜実施の形態５＞
図１５及び図１６に示すように、この実施の形態５では、実施の形態１乃至実施の形態４の場合と異なる着脱手段を介してレシーバ５がハウジング１に着脱自在に取り付けられる。
【００３３】
すなわち、背板７の切欠８に臨む左右の二箇所からハウジング１の左右の側面に沿うように取付板１４が後方へと突出し、これらの取付板１４がハウジング１の側面に取付用ネジ１５で固定される。取付用ネジ１５は図示しないネジ棒につまみを固定してなるもので、ネジ棒が取付板１４を貫通しハウジング１の側面に形成された図示しないネジ孔に螺合する。取付用ネジ１５が締め付けられることによりレシーバ５は取付板１４を介しハウジング１に固定され、取付用ネジ１５が緩められることによりレシーバ５はハウジング１から取り外される。
【００３４】
なお、実施の形態５の場合には、例えば取付用ネジ１５の箇所を支点にして、レシーバ５を回動し、レシーバ５の取付角度を変更することにより、芝草等の刈り込み高さを調整することも可能である。また、実施の形態５の場合には、取付板１４に形成された取付用ネジ１５の貫通穴を上下方向の長穴に形成し、レシーバ５の取付位置を上下に位置変更可能に形成すると、芝草等の刈り込み高さをより容易に調整可能である。
【００３５】
なお、この実施の形態５において実施の形態１乃至実施の形態４における部分と同一部分には同じ符号を付して示すこととしその詳細な説明は省略する。
【００３６】
＜実施の形態６＞
図１７及び図１８に示すように、この実施の形態６では、実施の形態１乃至実施の形態５の場合と異なる着脱手段を介してレシーバ５がハウジング１に着脱自在に取り付けられる。
【００３７】
すなわち、レシーバ５の底板６の後縁から切欠８内へと舌状に突出する係止片１１がハウジング１の底面１ａに取付ネジ１６により固定される。取付ネジ１６が締め付けられることによりレシーバ５はハウジング１に固定され、取付ネジ１６が緩められることによりレシーバ５はハウジング１から取り外される。
【００３８】
なお、この実施の形態６において実施の形態１乃至実施の形態５における部分と同一部分には同じ符号を付して示すこととしその詳細な説明は省略する。
【００３９】
その他、上記各実施の形態において、レシーバ５は手持式芝刈機のハウジング１と成形当初より一体的に形成することも可能である。
【００４０】
【発明の効果】
本発明によれば、レシーバにより切屑を受け止めつつ刈り込み作業を行うことで後の切屑等の清掃が不要になり、また、レシーバをハウジングから工具等を使用することなく速やかに取り外すことで手持式芝刈機の保守、点検を簡易に行うことができる。また、レシーバの取付位置を上下方向に変更可能であるため、芝草等の刈り込み高さを調整できる。
【図面の簡単な説明】
【図１】本発明の実施の形態１に係る手持式芝刈機の平面図である。
【図２】図１に示す手持式芝刈機の正面図である。
【図３】図１に示す手持式芝刈機の底面図である。
【図４】図１に示す手持式芝刈機の左側面図である。
【図５】図１に示す手持式芝刈機から取り外したレシーバの平面図である。
【図６】図５中ＶＩ−ＶＩ線矢視断面図である。
【図７】本発明の実施の形態２に係る手持式芝刈機の要部を示す部分図である。
【図８】図７に示すレシーバの平面図である。
【図９】図８中ＩＸ−ＩＸ線矢視断面図である。
【図１０】本発明の実施の形態３に係る手持式芝刈機の要部を示す部分図である。
【図１１】図１０に示すレシーバの平面図である。
【図１２】図１１中ＸＩＩ−ＸＩＩ線矢視断面図である。
【図１３】本発明の実施の形態４に係る手持式芝刈機で用いるレシーバの底面図である。
【図１４】図１３中ＸＩＶ−ＸＩＶ線矢視断面図である。
【図１５】本発明の実施の形態５に係る手持式芝刈機の底面図である。
【図１６】図１５に示す手持式芝刈機の正面図である。
【図１７】本発明の実施の形態６に係る手持式芝刈機の底面図である。
【図１８】図１７中ＸＶＩＩＩ−ＸＶＩＩＩ線矢視断面図である。
【符号の説明】
２…切断刃
５…レシーバ
５ａ，５ｂ…左右縁[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a handheld lawn mower equipped with a receiver for receiving chips.
[0002]
[Prior art and problems to be solved by the invention]
JP-A-2000-83475 discloses a hand-held lawn mower that cuts vegetation by reciprocating angular movements of comb-shaped cutting blades that overlap each other in opposite directions. When cutting the vegetation, the chips fall as they are, making cleaning later difficult.
[0003]
In addition, the hand-held lawn mower disclosed in Japanese Utility Model Publication No. Hei 3-74227 is designed to mow vegetation by reciprocating linear motion of comb-shaped cutting blades that overlap each other in the opposite direction. It is equipped with a chip collecting member that is disposed along, but this collecting member is fixed to the plate-shaped presser plate of the cutting blade with bolts and nuts. It interferes with the cleaning work of the lawn mower.
[0004]
[Means for Solving the Problems]
In order to solve the above problems, the invention according to claim 1 is a hand-held type in which a comb-shaped cutting blade (2) is provided in front of the housing (1), and trimming is performed by reciprocating angular movement of the cutting blade to the left and right. A lawn mower comprising a receiver (5) for receiving chips generated by cutting by the cutting blade from the cutting blade to the housing, and the receiver is disposed on the bottom plate (6) facing the lower portion of the cutting blade. ) And a back plate (7) erected on the side and rear of the bottom plate.
The invention according to claim 2 is characterized in that, in the invention according to claim 1, the receiver is detachably attached to the housing.
The invention according to claim 3 is characterized in that, in the invention according to claim 1, the receiver is provided such that its mounting position can be changed in the vertical direction with respect to the housing.
The invention according to claim 4 is the invention according to claim 1, wherein the housing or the receiver is provided with a recess (9) or a protrusion that restricts movement of the receiver in the front-rear direction relative to the housing by fitting. (10) is provided, and either the concave portion or the convex portion is disposed on both side portions of the housing, and the other of the concave portion or the convex portion is disposed on the back plate of the receiver, The receiver is detachably attached to the housing by fitting a concave portion and a convex portion provided in the housing or the receiver .
The invention according to claim 5 is the invention according to claim 4, wherein the receiver further includes a locking piece (11) provided to project rearward of the bottom plate, and the receiver to the housing. At the time of attachment, the locking piece is brought into contact with the bottom of the housing with elastic deformation .
The invention according to claim 6 is the invention according to claim 1, wherein the receiver includes a mounting plate that protrudes rearward from the back plate along both side surfaces of the housing. A hole extending in the vertical direction is formed, and the receiver is attached to the housing by attaching the mounting plate to the housing with a screw (15) through the hole, and the receiver is attached to and detached from the housing. The receiver can be attached, and the attachment position of the receiver can be changed in the vertical direction by changing the position of the screw with respect to the hole .
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings.
[0008]
<Embodiment 1>
As shown in FIGS. 1 to 4, the handheld lawn mower includes a housing 1 and a cutting blade 2 projecting forward from the housing 1.
[0009]
The housing 1 is formed, for example, by combining left and right split molds. A handle 3 is integrally provided at the rear portion of the housing 1. An ON / OFF switch trigger 4 is provided inside the handle 3. Although not shown in the figure, a driving part, a transmission part and the like are accommodated in the housing 1. For example, a motor is used as the driving part, and a cam device is used as the transmission part. By operating the trigger 4 with the finger of the hand having the handle 3 and switching the ON / OFF switch ON / OFF, the motor is started or stopped.
[0010]
The cutting blade 2 is configured by overlapping a comb-shaped lower blade 2b in the same manner as the comb-shaped upper blade 2a and connecting them with a pivot pin (not shown). When the upper and lower blades 2a and 2b reciprocate left and right with the pivot pin as a fulcrum, the comb-shaped teeth repeatedly intersect to cut the plant. Although not shown, elongated holes are formed in the rear portions of the upper and lower blades 2a and 2b, respectively, and the upper and lower cams of the cam device are fitted in the elongated holes. The upper and lower cams are integrated so that the phase is shifted by 180 degrees. When the cam rotates by starting the motor of the prime mover, the upper and lower blades 2a, 2b perform reciprocal angular motions in opposite directions to cut a plant that enters between the comb teeth.
[0011]
The receiver 5 shown in FIGS. 5 and 6 is detachably attached to the housing 1 as shown in FIGS.
[0012]
The receiver 5 is a collecting tool for receiving chips generated by cutting by the comb-shaped cutting blade 2, and as shown in FIGS. 5 and 6, a bottom plate 6 extending in the left-right direction of the handheld lawn mower, and a bottom plate 6 and a back plate 7 that rises obliquely rearward from the rear part. The receiver 5 is desirably integrally formed by, for example, resin injection molding, metal plate press molding, or the like. A substantially U-shaped notch 8 into which the front portion of the housing 1 is fitted is formed at the center of the bottom plate 6 and the back plate 7. As shown in FIGS. 1 to 4, when the receiver 5 is attached to the housing 1, a collecting portion that receives chips is formed between the bottom plate 6, the back plate 7, and the housing 1. The front end 6a of the bottom plate 6 is retreated slightly toward the housing 1 from the comb-like teeth of the cutting blade 2 so as not to hinder the cutting operation.
[0013]
In this embodiment, the receiver 5 is detachably attached to the housing 1 through the following attachment / detachment means.
[0014]
That is, as shown in FIGS. 5 and 6, a pair of recesses 9 are formed at locations facing the notches 8 of the back plate 7. As shown in FIGS. 1 to 4, the recesses are formed on the left and right side surfaces of the housing 1. 9 is formed. The convex portion 10 is formed as a round shaft that protrudes horizontally from the left and right side surfaces of the housing 1, and the concave portion 9 is formed as a round hole into which the round shaft that is each convex portion 10 enters. An opening 9 a is formed in the lower portion of the round hole, which is the concave portion 9, through which the convex portion 10 passes when the receiver 5 is attached to and detached from the housing 1. As shown in FIGS. 1 to 4, the receiver 5 is attached to the housing 1 so as not to move in the front-rear direction by fitting the concave and convex portions 9 and 10. Further, as shown in FIGS. 5 and 6, the locking piece 11 protrudes in a tongue shape from the rear edge of the bottom plate 6 of the receiver 5 into the notch 8. As shown in FIGS. 2 to 4, when the locking piece 11 contacts the bottom surface 1 a of the housing 1 with elastic deformation, the receiver 5 does not rotate up and down around the concavo-convex portions 9 and 10. 1 is fixed.
[0015]
The receiver 5 may be formed so as to protrude further outward than the left and right edges of the cutting blade 2, but preferably the left and right edges 5a and 5b are cut as shown in FIGS. It is formed so as to correspond to the left and right sides of the blade 2. In this case as well, the left and right edges 5a and 5b of the receiver 5 slightly protrude from the left and right sides of the cutting blade 2, but the amount of protrusion is, for example, about several millimeters. When cutting turf grass or the like, if the left and right edges 5a and 5b of the receiver 5 are used as a guide and are slid along a block rod or the like (not shown), the cutting operation is made efficient.
[0016]
Next, the operation of this handheld lawn mower will be described.
[0017]
First, the receiver 5 is brought close to the housing 1 from below the cutting blade 2 so that the locking piece 11 is brought into contact with the bottom surface 1a of the housing 1, and then the receiver 5 is slid rearward so that the concave portion 9 of the receiver 5 is projected to the convex of the housing 1. It is made to oppose the part 10. Therefore, the convex portion 10 is fitted into the concave portion 9 by bending the receiver 5 or the locking piece 11.
[0018]
As shown in FIGS. 1 to 4, the receiver 5 is formed by fitting the concave and convex portions 9 and 10, locking the locking piece 11 to the housing bottom surface 1 a, inserting the housing 1 into the notch 8, and the like. Fixed to.
[0019]
Therefore, when the handle 3 of the hand-held lawn mower is held and the trigger 4 is pulled, the motor is activated, and the upper and lower blades 2a and 2b of the cutting blade 2 perform a reciprocating angular motion to the left and right. By applying the cutting blade 2 to the plant, the plant is trimmed.
[0020]
Chips generated by trimming are received in a space between the bottom plate 6 and the back plate 7 of the receiver 5 without falling under the handheld lawn mower and are accumulated on the receiver 5.
[0021]
In order to remove the receiver 5 from the housing 1, the receiver 5 and the locking piece 11 are elastically deformed so as to push up the receiver 5, and the uneven portions 9 and 10 are separated. Subsequently, the receiver 5 is slid forward of the housing 1, and the locking piece 11 is detached from the bottom surface 1 a of the housing 1.
[0022]
Thereby, the receiver 5 is removed from the handheld lawn mower, and the receiver 5 and the handheld lawn mower are each subjected to cleaning or the like.
[0023]
<Embodiment 2>
As shown in FIGS. 7 to 9, in the second embodiment, unlike the first embodiment, the concave and convex portions 9 and 10 formed on the receiver 5 and the housing 1 are formed by square holes and square axes, respectively. The Specifically, the convex portion 10 is formed as a plate piece, and the concave portion 9 is formed as a rectangular hole into which the plate piece is fitted.
[0024]
When the concave and convex portions 9 and 10 are formed by square holes and square axes in this way, the receiver 5 becomes difficult to rotate in the vertical direction, so the locking piece 11 can be omitted.
[0025]
In the second embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.
[0026]
<Embodiment 3>
As shown in FIGS. 10 to 12, in the third embodiment, unlike the first and second embodiments, the concave portions 9 for attaching the receiver 5 to the housing 1 are provided on the left and right side surfaces of the housing 1. The protrusion 10 is formed at a location facing the notch 8 of the receiver 5.
[0027]
The uneven portions 9 and 10 can be round holes and round shafts as in the first embodiment. The locking piece 11 can be provided as necessary.
[0028]
In addition, in this Embodiment 3, the same code | symbol is attached | subjected and shown to the part same as the part in Embodiment 1 or Embodiment 2, and the detailed description is abbreviate | omitted.
[0029]
<Embodiment 4>
As shown in FIGS. 13 and 14, in the fourth embodiment, unlike the first to third embodiments, the bottom plate portion 1b of the housing 1 is formed detachably with respect to the housing body, and the receiver 5 is formed integrally with the bottom plate portion 1 b of the housing 1. In order to attach / detach the bottom plate portion 1b of the housing 1 to / from the housing body, fitting pieces 12 and spring pieces 13 are provided on the left and right edges and the rear edge of the bottom plate portion 1b, respectively.
[0030]
At the same time that the bottom plate portion 1 b of the housing 1 is fitted into the housing body, the receiver 5 is mounted on the housing 1. At the same time that the bottom plate portion 1 b of the housing 1 is removed from the housing body, the receiver 5 is removed from the housing 1.
[0031]
In the fourth embodiment, the same parts as those in the first to third embodiments are denoted by the same reference numerals, and detailed description thereof is omitted.
[0032]
<Embodiment 5>
As shown in FIGS. 15 and 16, in the fifth embodiment, the receiver 5 is detachably attached to the housing 1 through attachment / detachment means different from those in the first to fourth embodiments.
[0033]
That is, the mounting plate 14 protrudes rearward along the left and right side surfaces of the housing 1 from the left and right sides facing the notch 8 of the back plate 7, and these mounting plates 14 are attached to the side surface of the housing 1 with mounting screws 15. Fixed. The mounting screw 15 is formed by fixing a knob to a screw rod (not shown), and the screw rod passes through the mounting plate 14 and is screwed into a screw hole (not shown) formed on the side surface of the housing 1. When the mounting screw 15 is tightened, the receiver 5 is fixed to the housing 1 via the mounting plate 14, and when the mounting screw 15 is loosened, the receiver 5 is removed from the housing 1.
[0034]
In the case of the fifth embodiment, for example, by turning the receiver 5 around the mounting screw 15 as a fulcrum and changing the mounting angle of the receiver 5, the trimming height of turf grass or the like is adjusted. It is also possible. Further, in the case of the fifth embodiment, when the through hole of the mounting screw 15 formed in the mounting plate 14 is formed in a vertically long hole, and the mounting position of the receiver 5 is formed so that the position can be changed vertically, The cutting height of turfgrass etc. can be adjusted more easily.
[0035]
In the fifth embodiment, the same parts as those in the first to fourth embodiments are denoted by the same reference numerals, and detailed description thereof is omitted.
[0036]
<Embodiment 6>
As shown in FIGS. 17 and 18, in the sixth embodiment, the receiver 5 is detachably attached to the housing 1 through attachment / detachment means different from those in the first to fifth embodiments.
[0037]
That is, the locking piece 11 protruding in a tongue shape from the rear edge of the bottom plate 6 of the receiver 5 into the notch 8 is fixed to the bottom surface 1 a of the housing 1 by the mounting screw 16. The receiver 5 is fixed to the housing 1 by tightening the mounting screw 16, and the receiver 5 is removed from the housing 1 by loosening the mounting screw 16.
[0038]
In the sixth embodiment, the same parts as those in the first to fifth embodiments are denoted by the same reference numerals, and detailed description thereof is omitted.
[0039]
In addition, in each said embodiment, the receiver 5 can also be integrally formed with the housing 1 of a hand-held lawn mower from the beginning of shaping | molding.
[0040]
【The invention's effect】
According to the onset bright, clean chips, etc. after by performing work pruning while receiving the chips by the receiver is not required, also hand-held by removing quickly without using a tool or the like from the housing receiver Lawn mower maintenance and inspection can be performed easily. In addition, since the mounting position of the receiver can be changed in the vertical direction, the height of trimming the turf grass or the like can be adjusted.
[Brief description of the drawings]
FIG. 1 is a plan view of a handheld lawn mower according to Embodiment 1 of the present invention.
FIG. 2 is a front view of the handheld lawn mower shown in FIG.
3 is a bottom view of the handheld lawn mower shown in FIG. 1. FIG.
4 is a left side view of the handheld lawn mower shown in FIG. 1. FIG.
FIG. 5 is a plan view of the receiver removed from the handheld lawn mower shown in FIG.
6 is a cross-sectional view taken along line VI-VI in FIG.
FIG. 7 is a partial view showing a main part of a handheld lawn mower according to Embodiment 2 of the present invention.
8 is a plan view of the receiver shown in FIG.
9 is a cross-sectional view taken along line IX-IX in FIG.
FIG. 10 is a partial view showing a main part of a handheld lawn mower according to Embodiment 3 of the present invention.
11 is a plan view of the receiver shown in FIG.
12 is a cross-sectional view taken along line XII-XII in FIG.
FIG. 13 is a bottom view of a receiver used in a handheld lawn mower according to Embodiment 4 of the present invention.
14 is a cross-sectional view taken along line XIV-XIV in FIG.
FIG. 15 is a bottom view of a hand-held lawn mower according to Embodiment 5 of the present invention.
16 is a front view of the handheld lawn mower shown in FIG.
FIG. 17 is a bottom view of a handheld lawn mower according to Embodiment 6 of the present invention.
18 is a cross-sectional view taken along line XVIII-XVIII in FIG.
[Explanation of symbols]
2 ... Cutting blade 5 ... Receivers 5a, 5b ... Left and right edges

Claims

A hand-held lawn mower equipped with a comb-shaped cutting blade in the front of the housing, and trimmed by reciprocating angular movement of the cutting blade to the left and right,
A receiver for receiving chips generated by pruning by the cutting blade from the cutting blade to the housing;
The receiver is
Wherein a bottom plate disposed opposite the bottom of the cutting blade, the side and the hand lifting lawnmower you characterized by comprising a back plate which is erected, to the rear of the bottom plate.

The handheld lawn mower according to claim 1, wherein the receiver is detachably attached to the housing.

The handheld lawn mower according to claim 1, wherein the receiver is provided such that its mounting position can be changed in the vertical direction with respect to the housing.

The housing or the receiver is provided with a concave portion or a convex portion that restricts the movement of the receiver in the front-rear direction with respect to the housing by fitting. Arranged, the other one of the concave portion or the convex portion is arranged on the back plate of the receiver,
The handheld lawn mower according to claim 1, wherein the receiver is detachably attached to the housing by fitting a concave portion and a convex portion provided in the housing or the receiver.

The receiver further includes a locking piece that protrudes behind the bottom plate,
5. The handheld lawn mower according to claim 4, wherein when the receiver is attached to the housing, the locking piece is brought into contact with the bottom of the housing with elastic deformation.

The receiver includes a mounting plate that protrudes rearward from the back plate along both side surfaces of the housing.
The mounting plate has a hole extending in the vertical direction,
By attaching the mounting plate to the housing with a screw through the hole, the receiver is attached to the housing, and the receiver is detachably attached to the housing,
The hand-held lawn mower according to claim 1, wherein the receiver has a mounting position that can be changed in a vertical direction by changing a position of the screw with respect to the hole.