JPH08130956A - Attaching and detaching structure for hair clippers-type cutting blade - Google Patents

Abstract

PURPOSE: To provide a structure capable of attaching and detaching a hair clippers-type cutting blade in a speedy and simple manner. CONSTITUTION: An upper (lower) jointing piece 9 (10) is fixed on the upper (lower) side of a basal end of an upper cutting blade 3 (4), joined on the upper (lower) side of the outer end of an upper (lower) driving member 7 (8) and freely detachably attached on the upper (lower) driving member 7 (8) through an upper (lower) jointing pin 11 (12). The upper (lower) jointing piece 9 (10) fits on an upper (lower) guiding board 1 (2) through an open hole 1c (2a) formed on the guiding board in a freely movable manner. An upper(lower) pushing board 13 (14) which covers the upper (lower) open hole 1c (2a) and prevents the slipping-off of the upper (lower) jointing pin 11 (12) is detachably attached on the upper (lower) guiding board 1 (2).

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、草刈機や剪枝機などの
主要部を構成するバリカン式刈刃体に関し、詳しくは、
その取外し作業及び組付け作業が簡単に行えるように改
良されたバリカン式刈刃体の着脱構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clipper-type cutting blade body which constitutes a main part of a mowing machine, a pruning machine or the like.
The present invention relates to an attachment / detachment structure of a clipper type cutting blade body which is improved so that the removing work and the assembling work can be easily performed.

【０００２】[0002]

【従来の技術】例えば草刈機に装備されるバリカン式刈
刃体として、図７に示すものが従来一般に知られてい
る。ここで図７中、符号ａ，ｂは、草刈機のミッション
ケースｃに基端部がボルト・ナットｄにより固定された
上下一対の細長いガイド板を示し、これらはその長手方
向に沿って配置された複数組のボルト・ナットｅにより
相互に連結され、各ボルトに嵌合したスペーサリング
（図示省略）により所定間隔を開けて対向している。そ
してこの上下一対のガイド板ａ，ｂの間には、上記各ス
ペーサリングに嵌合してこれに案内される各長孔（図示
省略）を有する上下一対のバリカン式刈刃体、即ち、上
刈刃体ｆおよび下刈刃体ｇが長手方向に沿って摺動自在
に挟持されている。2. Description of the Related Art For example, as a clipper type cutting blade body mounted on a grass mower, one shown in FIG. 7 has been generally known. Here, in FIG. 7, reference characters a and b denote a pair of upper and lower elongated guide plates whose base ends are fixed to the mission case c of the mower by bolts and nuts d, and these are arranged along the longitudinal direction thereof. They are connected to each other by a plurality of sets of bolts and nuts e, and are opposed to each other with a predetermined space provided by a spacer ring (not shown) fitted to each bolt. Between the pair of upper and lower guide plates a and b, there is a pair of upper and lower clipper-type cutting blades, that is, a pair of upper and lower clipper-type cutting blades, each having a long hole (not shown) that is fitted into and guided by the spacer ring. The cutting blade body f and the lower cutting blade body g are slidably clamped along the longitudinal direction.

【０００３】ここで、前記上刈刃体ｆおよび下刈刃体ｇ
の基端部は、ミッションケースｃ内に臨んで図示省略し
たクランク機構にそれぞれ伝動構成されており、このク
ランク機構が図示省略したクラッチ装置を介してエンジ
ンにより回転駆動されることで、上刈刃体ｆおよび下刈
刃体ｇはその長手方向に沿って相互に逆方向に往復駆動
され、こうして草刈作業を行うようになっている。Here, the upper cutting blade f and the lower cutting blade g
The base ends of the above are respectively configured to be transmitted to a crank mechanism (not shown) so as to face the inside of the transmission case c, and the crank mechanism is rotatably driven by an engine via a clutch device (not shown), so that the upper cutting blade The body f and the lower cutting blade body g are reciprocally driven in opposite directions along the longitudinal direction of the body f and the lower cutting blade body g, so that the grass cutting operation is performed.

【０００４】このようなバリカン式刈刃体を使用した草
刈作業においては、上刈刃体ｆおよび下刈刃体ｇの各刈
刃の研磨状態は切れ味に大きく影響し、鋭利な研磨状態
では切れ味が良く作業能率も上がるが、草刈作業の進行
に伴い各刈刃が摩滅すると、切れ味が悪化して作業能率
が極端に低下する。そこで、切れ味が悪化した場合や一
定時間草刈作業をした後には、摩滅した上刈刃体ｆおよ
び下刈刃体ｇの各刈刃を再研磨する必要がある。In mowing work using such a clipper-type cutting blade, the sharpness of each of the upper and lower cutting blades f and g has a great effect on the sharpness, and sharp cutting results in sharpness. The work efficiency is improved, but when each cutting blade is worn away as the mowing work progresses, the sharpness is deteriorated and the work efficiency is extremely reduced. Therefore, when the sharpness deteriorates or after mowing work for a certain period of time, it is necessary to re-polish the worn cutting blades of the upper cutting blade f and the lower cutting blade g.

【０００５】ここで、上刈刃体ｆおよび下刈刃体ｇの各
刈刃の再研磨作業は、これらをミッションケースｃに装
着したままで行うことも可能ではあるが、実際には各刈
刃が上下に重なって研磨作業が極めて困難であり、時間
が掛かるばかりでなく、充分満足な研磨状態も得られな
いのが実状である。このため、一般には、摩滅した上刈
刃体ｆおよび下刈刃体ｇをミッションケースｃおよび上
下一対のガイド板ａ，ｂから取り外し、単独でその各刈
刃を再研磨している。Here, the re-polishing work of each of the upper cutting blade body f and the lower cutting blade body g can be performed with the cutting blades mounted on the mission case c, but in reality, the respective cutting blades are actually mounted. However, it is difficult to carry out the polishing work due to the overlapping of the upper and lower sides, and it takes a long time, and in reality, a sufficiently satisfactory polishing state cannot be obtained. Therefore, in general, the worn upper cutting blade f and the lower cutting blade g are removed from the mission case c and the pair of upper and lower guide plates a and b, and the respective cutting blades are re-polished independently.

【０００６】[0006]

【発明が解決しようとする課題】ところで、上刈刃体ｆ
および下刈刃体ｇの各刈刃の再研磨作業に際し、これら
を取り外すには、一対のガイド板ａ，ｂを上下に連結し
ている複数組のボルト・ナットｅをそれぞれ取り外すと
共に、ガイド板ａ，ｂの基端部をミッションケースｃに
固定しているボルト・ナットｄを取り外し、その上で更
にミッションケースｃを分解して上刈刃体ｆおよび下刈
刃体ｇの基端部をミッションケースｃ内のクランク機構
から取り外す必要があり、その取外し作業が極めて面倒
であって草刈作業の現場で簡単に取り外すことができな
いという問題があった。同様に、再研磨作業の済んだ上
刈刃体ｆおよび下刈刃体ｇをミッションケースｃおよび
一対のガイド板ａ，ｂ組み付けるにも、前述と反対手順
の作業が必要であり、組付け作業が極めて面倒で草刈現
場で簡単に組み付けることができないという問題があっ
た。By the way, the upper cutting blade body f
When removing the cutting blades of the lower cutting blade body g and the cutting blade body g, in order to remove them, a plurality of sets of bolts and nuts that vertically connect the pair of guide plates a and b are removed, and the guide plate a is removed. , B are fixed to the mission case c by removing the bolts and nuts d, and then the mission case c is disassembled so that the base ends of the upper cutting blade f and the lower cutting blade g are attached to the mission case. It is necessary to remove it from the crank mechanism in c, and the removal work is extremely troublesome, and there is a problem that it cannot be easily removed at the site of mowing work. Similarly, in order to assemble the upper cutting blade f and the lower cutting blade g, which have been re-polished, to the mission case c and the pair of guide plates a and b, the work in the procedure opposite to the above is required, and the assembling work is required. There was a problem that it was extremely troublesome and could not be easily assembled at the mowing site.

【０００７】従って、従来例においては、草刈作業中に
その切れ味が悪化してもバリカン式刈刃体を簡単に交換
することができず、作業能率が極端に低下したまま作業
を続行するか、作業を中断するか、あるいは別の草刈機
を用いて作業を継続しなければならないなどの問題が生
じていた。Therefore, in the conventional example, even if the sharpness is deteriorated during the mowing work, the hair clipper type cutting blade body cannot be easily replaced, and the work efficiency is extremely lowered, or the work is continued. There were problems such as having to interrupt work or continue work using another mower.

【０００８】そこで本発明は、上下一対のバリカン式刈
刃体の取外し作業及び組付け作業をミッションケースの
分解作業を伴うことなくより簡単かつ迅速に行うことが
でき、作業現場でバリカン式刈刃体を交換することも可
能としたバリカン式刈刃体の着脱構造を提供することを
主たる目的とし、加えて上下一対のバリカン式刈刃体の
円滑かつ確実な作動を確保することも目的とする。In view of this, the present invention makes it possible to easily and quickly remove and assemble the pair of upper and lower clipper-type cutting blade bodies without disassembling the mission case. The main purpose is to provide a structure for attaching and detaching a clipper-type cutting blade body that allows the body to be exchanged, and also to ensure smooth and reliable operation of a pair of upper and lower clipper-type cutting blade bodies. .

【０００９】[0009]

【課題を解決するための手段】この目的のため本発明に
よるバリカン式刈刃体の着脱構造は、上下一対の長板部
材からなり、その一方の基端部がミッションケースに連
結支持され、相互に複数本の連結部材を介し所定間隔を
開けて着脱自在に連結される上下一対のガイド板と、上
記連結部材が貫通してこれに案内されるガイド孔を有
し、上記一対のガイド板間に挟持されて長手方向に往復
摺動自在に案内される上下一対のバリカン式刈刃体と、
上記ミッションケース内の駆動機構に内端部がそれぞれ
伝動構成され、外端部が上記一対のガイド板間に臨んで
相互に逆方向に往復駆動される上下一対の駆動部材とを
備え、上記一対のバリカン式刈刃体の上部刈刃体の基端
部は上記一対の駆動部材の上部駆動部材の外端部に、下
部刈刃体の基端部は下部駆動部材の外端部にそれぞれ着
脱自在にピン結合したことを基本的な手段としている。To this end, a clipper-type cutting blade attachment / detachment structure according to the present invention comprises a pair of upper and lower elongated plate members, one base end portion of which is connected and supported to a mission case, and A pair of upper and lower guide plates that are detachably connected to each other through a plurality of connecting members at predetermined intervals, and a guide hole through which the connecting member penetrates and is guided, and between the pair of guide plates. A pair of upper and lower clipper-type cutting blades that are sandwiched between and guided so that they can slide back and forth in the longitudinal direction,
The pair of upper and lower driving members, each having an inner end portion configured to be transmitted to a drive mechanism in the mission case, and an outer end portion facing between the pair of guide plates and being reciprocally driven in mutually opposite directions, In the hair clipper type cutting blade, the base end of the upper cutting blade is attached to the outer end of the upper drive member of the pair of drive members, and the base end of the lower cutting blade is attached to the outer end of the lower drive member. The basic means is to freely connect pins.

【００１０】ここで、前記基本的手段において、上部刈
刃体の基端部または上部駆動部材の外端部のいずれか一
方の上面に固定されて他方の上面に接合し、上下方向に
貫通する上部連結ピンを介して他方に着脱自在に連結さ
れる上部接続片と、下部刈刃体の基端部または下部駆動
部材の外端部のいずれか一方の下面に固定されて他方の
下面に接合し、上下方向に貫通する下部連結ピンを介し
て他方に着脱自在に連結される下部接続片とを設けると
共に、一対のガイド板の上部ガイド板には上部接続片が
移動自在に嵌入する窓孔を、下部ガイド板には下部接続
片が移動自在に嵌入する窓孔を、それぞれ形成し、上部
ガイド板にはその窓孔内に臨む上部接続片の上面を覆っ
て上部連結ピンを抜け止めする上部押え板を、下部ガイ
ド板にはその窓孔内に臨む下部接続片の下面を覆って下
部連結ピンを抜け止めする下部押え板を、それぞれ着脱
自在に固定したことを具体的手段としている。Here, in the above-mentioned basic means, it is fixed to the upper surface of either the base end portion of the upper cutting blade body or the outer end portion of the upper drive member, joined to the other upper surface, and penetrates in the vertical direction. The upper connecting piece that is detachably connected to the other via the upper connecting pin, and the base end of the lower cutting blade or the outer end of the lower drive member is fixed to the lower surface of one and joined to the other lower surface. And a lower connecting piece removably connected to the other through a lower connecting pin penetrating in the vertical direction, and a window hole into which the upper connecting piece is movably fitted in the upper guide plates of the pair of guide plates. , The lower guide plate is formed with a window hole into which the lower connecting piece is movably fitted, and the upper guide plate covers the upper surface of the upper connecting piece facing the window hole to prevent the upper connecting pin from coming off. The upper holding plate and the lower guide plate have their window holes. Is the specific means that a lower pressing plate for retaining the lower connecting pin, and detachably fixed respectively to cover the lower surface of the lower connection piece facing.

【００１１】また、前記具体的手段において、上部ガイ
ド板に上部押え板を、下部ガイド板に下部押え板をそれ
ぞれ着脱自在に固定するネジ部材として、上部駆動部材
および下部駆動部材の外端部左右両側縁に摺接するガイ
ドピンを中間部に有して上下一対のガイド板を相互に連
結する左右一対のガイドピン付ネジ部材を設けたことも
手段としている。Further, in the concrete means, as upper and lower guide plates and upper and lower guide plates are screw members for detachably fixing the upper holding plate and the lower holding plate, respectively, left and right outer end portions of the upper driving member and the lower driving member. It is also a means to provide a pair of left and right screw members with guide pins for connecting a pair of upper and lower guide plates to each other, having guide pins in the middle portion which are in sliding contact with both side edges.

【００１２】さらに、前記具体的手段において、上部連
結ピンと下部連結ピンとは、上下一対の駆動部材の往復
駆動方向に関して左右方向に相互に位置をずらして配置
したことも手段としている。Further, in the above concrete means, the upper connecting pin and the lower connecting pin are arranged so as to be displaced from each other in the left-right direction with respect to the reciprocating driving direction of the pair of upper and lower driving members.

【００１３】[0013]

【作用】ここで、前述の基本的手段を採用した本発明に
よるバリカン式刈刃体の着脱構造では、上下一対のバリ
カン式刈刃体を取り外す場合、上下一対のガイド板を相
互に連結している各連結部材を取り外し、ミッションケ
ースに連結支持された一方のガイド板（例えば上部ガイ
ド板）から他方のガイド板（例えば下部ガイド板）を分
離する。そしてミッションケース外に露出した下部駆動
部材の外端部と下部刈刃体の基端部とを結合しているピ
ンを抜き取って下部駆動部材から下部刈刃体を分離し、
続いて上部駆動部材の外端部と上部刈刃体の基端部とを
結合しているピンを抜き取って上部駆動部材から上部刈
刃体を分離することで、上下一対のバリカン式刈刃体の
取外し作業が完了する。Here, in the structure for attaching and detaching the clipper-type cutting blade body according to the present invention which employs the above-mentioned basic means, when removing the pair of upper and lower clipper-type cutting blade bodies, the pair of upper and lower guide plates are connected to each other. Each of the connecting members is removed, and one guide plate (for example, an upper guide plate) connected and supported by the mission case is separated from the other guide plate (for example, a lower guide plate). Then, the pin connecting the outer end of the lower driving member exposed to the outside of the mission case and the base end of the lower cutting blade is pulled out to separate the lower cutting blade from the lower driving member,
Then, by removing the pin connecting the outer end of the upper drive member and the base end of the upper cutting blade to separate the upper cutting blade from the upper driving member, a pair of upper and lower clipper-type cutting blades Removal work is completed.

【００１４】また、上下一対のバリカン式刈刃体を組み
付ける場合は、取外し作業と反対の手順で作業すればよ
く、まず、ミッションケース外にて上部駆動部材の外端
部に上部刈刃体の基端部をピン結合し、続いて下部駆動
部材の外端部に下部刈刃体の基端部をピン結合する。そ
して、下部刈刃体の下面に下部ガイド板を接合してこれ
を各連結部材により上部刈刃体に連結する。その際、各
連結部材は上下一対のバリカン式刈刃体の各ガイド孔に
貫通させるのであり、こうして上下一対のバリカン式刈
刃体の組付け作業が完了する。When assembling a pair of upper and lower clipper-type cutting blades, the procedure opposite to the removing operation may be performed. First, the upper cutting blades are attached to the outer end of the upper drive member outside the transmission case. The base end is pin-connected, and then the base end of the lower cutting blade is pin-connected to the outer end of the lower drive member. Then, a lower guide plate is joined to the lower surface of the lower cutting blade body and is connected to the upper cutting blade body by each connecting member. At this time, the respective connecting members are passed through the respective guide holes of the pair of upper and lower clipper-type cutting blade bodies, and thus the assembling work of the pair of upper and lower clipper-type cutting blade bodies is completed.

【００１５】一方、具体的手段を採用したバリカン式刈
刃体の着脱構造では、前述した基本的手段によるバリカ
ン式刈刃体の着脱構造と略同様の手順による他、上下一
対のバリカン式刈刃体の各ガイド孔を貫通して上下一対
のガイド板を相互に連結している各連結部材を取り外し
た上で、上部ガイド板および下部ガイド板からそれぞれ
上部押え板および下部押え板を取り外し、上部ガイド板
および下部ガイド板の各窓孔内に露出する上部連結ピン
および下部連結ピンをそれぞれ抜き取り、上部駆動部材
および下部駆動部材からそれぞれ上部刈刃体およびを下
部刈刃体を分離することでも、上下一対のバリカン式刈
刃体の取外し作業が完了し、またこれと反対の手順で組
付け作業が完了する。On the other hand, in the attaching / detaching structure of the clipper type cutting blade body adopting the concrete means, the procedure is substantially the same as the attaching / detaching structure of the clipper type cutting blade body by the above-mentioned basic means, and a pair of upper and lower clipper type cutting blades. After removing the connecting members that connect the upper and lower guide plates to each other through the guide holes of the body, remove the upper holding plate and the lower holding plate from the upper guide plate and the lower guide plate, respectively. By extracting the upper connecting pin and the lower connecting pin exposed in the respective window holes of the guide plate and the lower guide plate, respectively, and separating the upper cutting blade body and the lower cutting blade body from the upper driving member and the lower driving member, respectively, The work of removing the pair of upper and lower clipper-type cutting blades is completed, and the assembly work is completed in the reverse order.

【００１６】ここで、上部ガイド板および下部ガイド板
にそれぞれ上部押え板および下部押え板を着脱自在に固
定するネジ部材として左右一対のガイドピン付ネジ部材
を設けた手段でも、前述と同様の手順により上下一対の
バリカン式刈刃体の取外し作業および組付け作業が完了
する。そしてこの手段では、組み付けられた上下一対の
バリカン式刈刃体が上下一対の駆動部材により相互に逆
方向に往復駆動される際に、上下一対の駆動部材の外端
部左右両側縁が左右一対のガイドピン付ネジ部材の中間
部のガイドピンに摺接して横振れが防止される。Here, the same procedure as described above can be applied to a means in which a pair of left and right guide pin screw members are provided as screw members for detachably fixing the upper and lower pressing plates to the upper guide plate and the lower guide plate, respectively. This completes the work of removing and assembling the pair of upper and lower clipper-type cutting blades. In this means, when the pair of upper and lower clipper-type cutting blades that are assembled are reciprocally driven in opposite directions by the pair of upper and lower drive members, the left and right edges of the outer end portions of the pair of upper and lower drive members are paired with each other. Lateral runout is prevented by sliding contact with the guide pin in the middle of the screw member with the guide pin.

【００１７】また、上下一対の駆動部材の往復駆動方向
に関し、左右方向に相互に位置をずらして上部連結ピン
と下部連結ピンとを配置した手段では、組み付けられた
上下一対のバリカン式刈刃体が上下一対の駆動部材によ
り相互に逆方向に往復駆動される際に、上部連結ピンお
よび下部連結ピンは内端部同士が干渉することなくそれ
ぞれ円滑に摺動動作する。With respect to the reciprocating driving direction of the pair of upper and lower driving members, the upper connecting pin and the lower connecting pin are arranged so as to be displaced from each other in the left and right directions. When reciprocally driven in the opposite directions by the pair of driving members, the upper connecting pin and the lower connecting pin each smoothly slide without causing inner end portions to interfere with each other.

【００１８】[0018]

【実施例】以下、本発明の実施例を添付の図面を参照し
て具体的に説明する。例えば草刈機のバリカン式刈刃体
に適用された一実施例を分解して示す図２において、符
号１，２は上下一対のガイド板を構成する上部ガイド板
および下部ガイド板、符号３，４は上下一対のバリカン
式刈刃体を構成する上部刈刃体および下部刈刃体、符号
５はミッションケースをそれぞれ示している。Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. For example, in FIG. 2 showing an exploded view of an embodiment applied to a hair clipper-type cutting blade of a mower, reference numerals 1 and 2 denote an upper guide plate and a lower guide plate that constitute a pair of upper and lower guide plates, and reference numerals 3 and 4. Indicates an upper cutting blade and a lower cutting blade which form a pair of upper and lower clipper-type cutting blades, and reference numeral 5 indicates a mission case, respectively.

【００１９】前記上部ガイド板１および下部ガイド板２
は、細長い平板状のもので、その長手方向の複数箇所
（本実施例では６箇所）が各連結部材６により連結され
ることで相互に所定間隔を開けて対向するようになって
いる。図３は上記連結部材６による上部ガイド板１と下
部ガイド板２との連結構造を示しており、下側から上向
きに下部ガイド板２および上部ガイド板１を貫通する連
結ボルト６ａと、上部ガイド板１の上面側で連結ボルト
６ａに螺合する連結ナット６ｂと、連結ボルト６ａに嵌
合して上部ガイド板１と下部ガイド板２との間に設置さ
れるスペーサリング６ｃとを備えている。なお、上記連
結ボルト６ａは、スペーサリング６ｃを兼用する段付き
ボルトとしてもよい。The upper guide plate 1 and the lower guide plate 2
Is an elongated flat plate, and a plurality of points (6 points in this embodiment) in the longitudinal direction are connected by the connecting members 6 so as to be opposed to each other with a predetermined interval. FIG. 3 shows a connecting structure of the upper guide plate 1 and the lower guide plate 2 by the connecting member 6, and includes a connecting bolt 6a penetrating the lower guide plate 2 and the upper guide plate 1 from the lower side to the upper guide plate. The plate 1 is provided with a connection nut 6b screwed into the connection bolt 6a on the upper surface side thereof, and a spacer ring 6c fitted between the connection bolt 6a and installed between the upper guide plate 1 and the lower guide plate 2. . The connecting bolt 6a may be a stepped bolt that also serves as the spacer ring 6c.

【００２０】前記上部刈刃体３および下部刈刃体４は、
上下に重ねて上部ガイド板１と下部ガイド板２との間に
往復摺動自在に挟持されるものであり、上部刈刃体３の
左右両側には上部ガイド板１および下部ガイド板２の左
右両側から突出する多数の三角刈刃３ａが所定ピッチで
形成され、同様に下部刈刃体４の左右両側には上部ガイ
ド板１および下部ガイド板２の左右両側から突出する多
数の台形刈刃４ａが所定ピッチで形成されている。そし
てこれらの上部刈刃体３および下部刈刃体４には、前記
各連結部材６における各スペーサリング６ｃが嵌合して
これに案内される６個の長孔状のガイド孔３ｂ，３ｂ，
…、４ｂ，４ｂ，…が長手方向に沿ってそれぞれ形成さ
れている。The upper cutting blade body 3 and the lower cutting blade body 4 are
The upper and lower guide plates 1 and 2 are sandwiched between the upper guide plate 1 and the lower guide plate 2 so as to be reciprocally slidable. A large number of triangular cutting blades 3a protruding from both sides are formed at a predetermined pitch, and similarly, a large number of trapezoidal cutting blades 4a protruding from both left and right sides of the upper guide plate 1 and the lower guide plate 2 are formed on both left and right sides of the lower cutting blade body 4. Are formed at a predetermined pitch. The upper cutting blade body 3 and the lower cutting blade body 4 are fitted with the spacer rings 6c of the connecting members 6 and guided by the six elongated guide holes 3b, 3b.
, 4b, 4b, ... Are formed along the longitudinal direction.

【００２１】一方、前記ミッションケース５は、図示省
略した草刈機のエンジンによりクラッチ装置を介して回
転駆動されるクランク機構を内蔵したもので、このクラ
ンク機構には上下一対の駆動部材、即ち上部駆動部材お
よび下部駆動部材の内端部がそれぞれ伝動構成されて相
互に逆方向に往復駆動されるようになっている。そして
このミッションケース５は、上記上部駆動部材および下
部駆動部材の外端部が突出する開口部で上下に分解可能
となっている。On the other hand, the transmission case 5 has a built-in crank mechanism which is rotationally driven by an engine of a mower (not shown) via a clutch device. The crank mechanism has a pair of upper and lower drive members, that is, an upper drive. The inner ends of the member and the lower drive member are respectively configured to be transmitted, and are reciprocally driven in mutually opposite directions. The mission case 5 can be disassembled in the vertical direction at the openings through which the outer ends of the upper drive member and the lower drive member project.

【００２２】前記ミッションケース５内には、その開口
を通して前記上部ガイド板１の基端部が臨んでおり、こ
の基端部に立設された前後２本の雄ネジ部材１ａ，１ｂ
を介して上部ガイド板１の基端部が予めミッションケー
ス５に固定されている（図４参照）。またこの上部ガイ
ド板１に前記各連結部材６を介し所定間隔を開けて連結
される下部ガイド板２の基端部は、ミッションケース５
外の開口部付近に臨んでいる。そしてこれらの上部ガイ
ド板１と下部ガイド板２の間に、前記上部駆動部材７お
よび下部駆動部材８の外端部が前後に摺動自在に挟持さ
れるようになっている。The base end portion of the upper guide plate 1 faces the inside of the mission case 5 through its opening, and the two front and rear male screw members 1a and 1b erected on the base end portion.
The base end portion of the upper guide plate 1 is previously fixed to the mission case 5 via the (see FIG. 4). Further, the base end portion of the lower guide plate 2 which is connected to the upper guide plate 1 via the connecting members 6 at a predetermined interval is provided with the mission case 5.
It faces the outside opening. The outer end portions of the upper drive member 7 and the lower drive member 8 are sandwiched between the upper guide plate 1 and the lower guide plate 2 so as to be slidable back and forth.

【００２３】ここで図１に示すように、上下に重ねて上
部ガイド板１と下部ガイド板２との間に往復摺動自在に
挟持される上部刈刃体３および下部刈刃体４において、
上部刈刃体３の基端部上面には、上部駆動部材７の上面
に跨って接合可能な上部接続片９が前後のリベット９
ａ，９ｂを介して接合固定され、同様に下部刈刃体４の
基端部下面には、下部駆動部材８の下面に跨って接合可
能な下部接続片１０が前後のリベット１０ａ，１０ｂを
介して接合固定されている。そして上部接続片９におけ
る上部刈刃体３の基端部から突出した部分には、上部連
結ピン１１が挿通されるピン挿通孔９ｃが左右方向の例
えば左側に偏心して形成され、同様に下部接続片１０に
おける下部刈刃体４の基端部から突出した部分には、下
部連結ピン１２が挿通されるピン挿通孔１０ｃが左右方
向の例えば右側に偏心して形成されている。Here, as shown in FIG. 1, in the upper cutting blade body 3 and the lower cutting blade body 4 which are vertically stacked and sandwiched between the upper guide plate 1 and the lower guide plate 2 so as to be reciprocally slidable,
On the upper surface of the base end portion of the upper cutting blade body 3, an upper connecting piece 9 that can be joined over the upper surface of the upper driving member 7 is provided on the front and rear rivets 9.
A lower connecting piece 10 which is joined and fixed via a and 9b and which can be joined to the lower end of the lower cutting blade body 4 over the lower surface of the lower drive member 8 is also provided with front and rear rivets 10a and 10b. It is fixed by joining. A pin insertion hole 9c, through which the upper connecting pin 11 is inserted, is formed eccentrically in the left-right direction, for example, in the portion of the upper connection piece 9 that protrudes from the base end portion of the upper cutting blade body 3. A pin insertion hole 10c into which the lower connecting pin 12 is inserted is formed eccentrically in the right and left direction, for example, in the portion of the piece 10 protruding from the base end of the lower cutting blade body 4.

【００２４】一方、前記上部接続片９が上面に接合され
る上部駆動部材７の外端部には、上部連結ピン１１のピ
ン挿通孔７ａが左右方向の例えば左側に偏心して形成さ
れ、同様に下部接続片１０が下面に接合される下部駆動
部材８の外端部には、下部連結ピン１２のピン挿通孔８
ａが左右方向の例えば右側に偏心して形成されている。On the other hand, at the outer end portion of the upper drive member 7 to which the upper connection piece 9 is joined on the upper surface, a pin insertion hole 7a of the upper connection pin 11 is formed eccentrically in the left-right direction, for example, leftward. At the outer end portion of the lower drive member 8 where the lower connection piece 10 is joined to the lower surface, the pin insertion hole 8 of the lower connection pin 12 is formed.
a is formed so as to be eccentric to the right and left, for example, to the right.

【００２５】また、上部ガイド板１のミッションケース
５外に位置する基端部付近には、上部接続片９を嵌入し
て前後方向に往復移動自在とする窓孔１ｃが形成され、
同様に下部ガイド板２の基端部付近には、下部接続片１
０を嵌入して前後方向に往復移動自在とする窓孔２ａが
形成されている。In the vicinity of the base end portion of the upper guide plate 1 located outside the mission case 5, a window hole 1c into which an upper connecting piece 9 is fitted and which can be reciprocated in the front-rear direction is formed.
Similarly, near the base end of the lower guide plate 2, the lower connecting piece 1
A window hole 2a is formed in which 0 is fitted to allow reciprocal movement in the front-rear direction.

【００２６】なお、上記窓孔１ｃに嵌入する上部接続片
９は上部ガイド板１より若干薄い板厚に、また窓孔２ａ
に嵌入する下部接続片１０は下部ガイド板２より若干薄
い板厚にそれぞれ形成されている。また、上部連結ピン
１１は、上部接続片９のピン挿通孔９ｃと上部駆動部材
７のピン挿通孔７ａとに挿通された状態でその上面が上
部接続片９の上面と略一致する長さに設定され、同様に
下部連結ピン１２は、下部接続片１０のピン挿通孔１０
ｃと下部駆動部材８のピン挿通孔８ａとに挿通された状
態でその下面が下部接続片１０の下面と略一致する長さ
に設定されている。The upper connecting piece 9 fitted into the window hole 1c has a thickness slightly smaller than that of the upper guide plate 1 and the window hole 2a.
The lower connecting pieces 10 that are fitted in are formed to have a thickness slightly smaller than that of the lower guide plate 2. Further, the upper connecting pin 11 has a length such that its upper surface substantially coincides with the upper surface of the upper connecting piece 9 while being inserted into the pin inserting hole 9c of the upper connecting piece 9 and the pin inserting hole 7a of the upper drive member 7. Similarly, the lower connecting pin 12 is connected to the pin insertion hole 10 of the lower connecting piece 10.
The length of the lower surface of the lower connecting member 10 is set to be substantially the same as the lower surface of the lower connecting member 10 while being inserted into the pin insertion hole 8a of the lower driving member 8.

【００２７】そこで前記上部接続片９のピン挿通孔９ｃ
と上部駆動部材７のピン挿通孔７ａとに跨って挿通され
る上部連結ピン１１、および下部接続片１０のピン挿通
孔１０ｃと下部駆動部材８のピン挿通孔８ａとに跨って
挿通される下部連結ピン１２をそれぞれ抜け止めすべ
く、上部ガイド板１の上面にはその窓孔１ｃを覆う上部
押え板１３が、また下部ガイド板２の下面にはその窓孔
２ａを覆う下部押え板１４がそれぞれ着脱自在にネジ止
め固定される。Therefore, the pin insertion hole 9c of the upper connection piece 9 is formed.
And an upper connecting pin 11 that is inserted over the pin insertion hole 7a of the upper drive member 7, and a lower portion that is inserted over the pin insertion hole 10c of the lower connection piece 10 and the pin insertion hole 8a of the lower drive member 8. In order to prevent the connecting pins 12 from coming off, an upper holding plate 13 that covers the window hole 1c is provided on the upper surface of the upper guide plate 1, and a lower holding plate 14 that covers the window hole 2a is provided on the lower surface of the lower guide plate 2. Each is detachably fixed with screws.

【００２８】ここで、前記上部押え板１３および下部押
え板１４の着脱構造を説明すると、上部押え板１３は前
部の両隅に左右一対のネジ挿通孔１３ａ，１３ａを、後
部の両隅に左右一対のネジ挿通孔１３ｂ，１３ｂを有
し、同様に下部押え板１４は前部の両隅に左右一対のネ
ジ挿通孔１４ａ，１４ａを、後部の両隅に左右一対のネ
ジ挿通孔１４ｂ，１４ｂを有する。これに対応して上部
ガイド板１の窓孔１ｃの周囲には、ネジ挿通孔１３ａ，
１３ａに挿入される左右一対の雄ネジ部材１ｄ，１ｄが
上方に突設されると共に、ネジ挿通孔１３ｂ，１３ｂに
一致するネジ挿通孔１ｅ，１ｅが形成されている。同様
に、下部ガイド板２の窓孔２ａの周囲には、ネジ挿通孔
１４ａ，１４ａに挿入される左右一対の雄ネジ部材２
ｂ，２ｂ（一方は図示省略）が下方に突設されると共
に、ネジ挿通孔１４ｂ，１４ｂに一致するネジ挿通孔２
ｃ，２ｃが形成されている。そして上記雄ネジ部材１
ｄ，１ｄにナット１５，１５が螺着されることで上部押
え板１３の前部が上部ガイド板１に着脱自在に固定さ
れ、また上記雄ネジ部材２ｂ，２ｂにナット１６，１６
が螺着されることで下部押え板１４の前部が下部ガイド
板２に着脱自在に固定されるようになっている。The attachment / detachment structure of the upper pressing plate 13 and the lower pressing plate 14 will now be described. The upper pressing plate 13 has a pair of left and right screw insertion holes 13a and 13a at both front corners and both rear corners. It has a pair of left and right screw insertion holes 13b, 13b. Similarly, the lower holding plate 14 has a pair of left and right screw insertion holes 14a, 14a at both front corners, and a pair of left and right screw insertion holes 14b at both rear corners. 14b. Corresponding to this, around the window hole 1c of the upper guide plate 1, screw insertion holes 13a,
A pair of left and right male screw members 1d, 1d to be inserted into 13a are provided so as to project upward, and screw insertion holes 1e, 1e corresponding to the screw insertion holes 13b, 13b are formed. Similarly, around the window hole 2a of the lower guide plate 2, a pair of left and right male screw members 2 to be inserted into the screw insertion holes 14a, 14a are provided.
b and 2b (one of which is not shown) project downward, and the screw insertion holes 2 are aligned with the screw insertion holes 14b and 14b.
c, 2c are formed. And the male screw member 1
By screwing the nuts 15 and 15 onto the d and 1d, the front portion of the upper pressing plate 13 is detachably fixed to the upper guide plate 1, and the nuts 16 and 16 are attached to the male screw members 2b and 2b.
The front portion of the lower pressing plate 14 is detachably fixed to the lower guide plate 2 by screwing.

【００２９】また、前記上部押え板１３の後部を上部ガ
イド板１に、下部押え板１４の後部を下部ガイド板２に
それぞれ着脱自在に固定するネジ部材として、左右一対
のガイドピン付ネジ部材１７が設けられる。このガイド
ピン付ネジ部材１７は、上部ガイド板１のネジ挿通孔１
ｅ，１ｅと上部押え板１３のネジ挿通孔１３ｂ，１３ｂ
とに挿入されてナット１８，１８が螺着される上部１７
ａと、下部ガイド板２のネジ挿通孔２ｃ，２ｃと下部押
え板１４のネジ挿通孔１４ｂ，１４ｂに挿入されてナッ
ト１９，１９が螺着される下部１７ｂとの間の中間部
に、上部駆動部材７および下部駆動部材８の外端部左右
両側縁に摺接するガイドピン１７ｃを有するもので、こ
のガイドピン１７ｃは前記連結部材６のスペーサリング
６ｃと略同じ厚みに設定されていて、上部ガイド板１と
下部ガイド板２とを所定の間隔を開けて連結するように
なっている。A pair of left and right screw members 17 with guide pins are used as screw members for detachably fixing the rear portion of the upper pressing plate 13 to the upper guide plate 1 and the rear portion of the lower pressing plate 14 to the lower guide plate 2, respectively. Is provided. The screw member 17 with the guide pin is provided in the screw insertion hole 1 of the upper guide plate 1.
e, 1e and screw insertion holes 13b, 13b of the upper holding plate 13
The upper part 17 that is inserted into and is screwed with the nuts 18 and 18
a and the lower part 17b between the screw insertion holes 2c, 2c of the lower guide plate 2 and the screw insertion holes 14b, 14b of the lower pressing plate 14 and the nuts 19, 19 screwed thereto. The driving member 7 and the lower driving member 8 have guide pins 17c which are in sliding contact with the left and right edges of the outer ends of the driving member 7 and the lower driving member 8. The guide pins 17c are set to have substantially the same thickness as the spacer ring 6c of the connecting member 6, The guide plate 1 and the lower guide plate 2 are connected to each other with a predetermined gap.

【００３０】次に、このように構成された本実施例につ
き、その作用を説明する。まず、基端部が予めミッショ
ンケース５に連結支持されている上部ガイド板１に対し
て下部ガイド板２が分離されている状態で上部刈刃体３
および下部刈刃体４を組み付けるには、これらを上部ガ
イド板１と下部ガイド板２との間に挟持してからこれら
の基端部を上部駆動部材７および下部駆動部材８の外端
部に接続するか、あるいは反対にこれらの基端部を上部
駆動部材７および下部駆動部材８の外端部に接続してか
らこれらを上部ガイド板１と下部ガイド板２との間に挟
持する。Next, the operation of this embodiment thus constructed will be described. First, in a state where the lower guide plate 2 is separated from the upper guide plate 1 whose base end is connected and supported in advance to the mission case 5, the upper cutting blade body 3 is separated.
In order to assemble the lower cutting blade body 4 and the upper guide plate 1 and the lower guide plate 2, these are clamped, and the base end portions of these are attached to the outer end portions of the upper drive member 7 and the lower drive member 8. Connect them, or conversely, connect their base ends to the outer ends of the upper drive member 7 and the lower drive member 8 and then sandwich them between the upper guide plate 1 and the lower guide plate 2.

【００３１】ここで、上部刈刃体３および下部刈刃体４
を上部ガイド板１と下部ガイド板２との間に挟持してか
らこれらの基端部を上部駆動部材７および下部駆動部材
８の外端部に接続する組付け作業例について説明する
と、まず、上部刈刃体３および下部刈刃体４を上下に重
ねてこれらを下部ガイド板２の上に重合し、この状態で
各連結部材６の各スペーサリング６ｃを上部刈刃体３の
各ガイド孔３ｂ，３ｂ…と下部刈刃体４の各ガイド孔４
ｂ，４ｂ…とに跨って挿入する。そして上部刈刃体３を
上部ガイド板１に接合して下部ガイド板２側から各連結
部材６の各連結ボルト６ａを挿入し、これらの上端部に
各連結ナット６ｂを螺着することで、上部刈刃体３およ
び下部刈刃体４を上部ガイド板１と下部ガイド板２との
間に摺動自在に挟持する。Here, the upper cutting blade body 3 and the lower cutting blade body 4
An example of an assembling work in which the base end portions of the upper guide plate 1 and the lower guide plate 2 are sandwiched between the upper guide plate 1 and the lower guide plate 2 and the base end portions thereof are connected to the outer end portions of the upper drive member 7 and the lower drive member 8 will be described. The upper cutting blade body 3 and the lower cutting blade body 4 are piled up and down, these are piled up on the lower guide plate 2, and in this state, each spacer ring 6c of each connecting member 6 is inserted into each guide hole of the upper cutting blade body 3. 3b, 3b ... and each guide hole 4 of the lower cutting blade body 4
b, 4b ... And inserted. Then, the upper cutting blade body 3 is joined to the upper guide plate 1, the connecting bolts 6a of the connecting members 6 are inserted from the lower guide plate 2 side, and the connecting nuts 6b are screwed to the upper ends thereof. The upper cutting blade body 3 and the lower cutting blade body 4 are slidably sandwiched between the upper guide plate 1 and the lower guide plate 2.

【００３２】続いて、上部ガイド板１の窓孔１ｃ内に臨
む上部接続片９を上部駆動部材７の上面に接合させ、両
者のピン挿通孔９ｃ，７ａに跨って上部連結ピン１１を
挿入し、上部刈刃体３の基端部と上部駆動部材７の外端
部とを上部接続片９を介して接続する。そして上部押え
板１３のネジ挿通孔１３ａ，１３ａに上部ガイド板１の
雄ネジ部材１ｄ，１ｄを挿通し、これらにナット１５，
１５を螺合することで上部押え板１３の前部を上部ガイ
ド板１に固定すると共に、上部ガイド板１のネジ挿通孔
１ｅ，１ｅと上部押え板１３のネジ挿通孔１３ｂ，１３
ｂとにガイドピン付ネジ部材１７，１７の上部１７ａ，
１７ａを挿通し、これらにナット１８，１８を螺合する
ことで上部押え板１３の後部を上部ガイド板１に固定す
る。Then, the upper connecting piece 9 facing the window hole 1c of the upper guide plate 1 is joined to the upper surface of the upper driving member 7, and the upper connecting pin 11 is inserted across the pin inserting holes 9c and 7a. The base end portion of the upper cutting blade body 3 and the outer end portion of the upper drive member 7 are connected via the upper connecting piece 9. Then, the male screw members 1d, 1d of the upper guide plate 1 are inserted into the screw insertion holes 13a, 13a of the upper holding plate 13, and the nuts 15,
The front part of the upper holding plate 13 is fixed to the upper guide plate 1 by screwing 15 together, and the screw insertion holes 1e, 1e of the upper guide plate 1 and the screw insertion holes 13b, 13 of the upper holding plate 13 are fixed.
b and the upper part 17a of the screw member 17 with a guide pin 17,
The rear portion of the upper pressing plate 13 is fixed to the upper guide plate 1 by inserting 17a and screwing nuts 18 to these.

【００３３】同様にして、下部ガイド板２の窓孔２ａ内
に臨む下部接続片１０を下部駆動部材８の下面に接合さ
せ、両者のピン挿通孔１０ｃ，８ａに跨って下部連結ピ
ン１２を挿入し、下部刈刃体４の基端部と下部駆動部材
８の外端部とを下部接続片１０を介して接続する。そし
て下部押え板１４のネジ挿通孔１４ａ，１４ａに下部ガ
イド板２の雄ネジ部材２ｂ，２ｂを挿通し、これらにナ
ット１６，１６を螺合することで下部押え板１４の前部
を下部ガイド板２に固定すると共に、下部ガイド板２の
ネジ挿通孔２ｃ，２ｃと下部押え板１４のネジ挿通孔１
４ｂ，１４ｂとにガイドピン付ネジ部材１７，１７の下
部１７ｂ，１７ｂを挿通し、これらにナット１９，１９
を螺合することで下部押え板１４の後部を下部ガイド板
２に固定する。Similarly, the lower connecting piece 10 facing the window 2a of the lower guide plate 2 is joined to the lower surface of the lower drive member 8, and the lower connecting pin 12 is inserted across the pin insertion holes 10c and 8a. Then, the base end portion of the lower cutting blade body 4 and the outer end portion of the lower drive member 8 are connected via the lower connecting piece 10. Then, the male screw members 2b, 2b of the lower guide plate 2 are inserted into the screw insertion holes 14a, 14a of the lower pressing plate 14, and the nuts 16, 16 are screwed into these, so that the front portion of the lower pressing plate 14 is guided to the lower guide. The screw insertion holes 2c, 2c of the lower guide plate 2 and the screw insertion hole 1 of the lower holding plate 14 are fixed to the plate 2.
4b and 14b, the lower parts 17b and 17b of the screw members 17 and 17 with guide pins are inserted, and nuts 19 and 19 are inserted into these.
The rear part of the lower pressing plate 14 is fixed to the lower guide plate 2 by screwing.

【００３４】こうして上部刈刃体３および下部刈刃体４
は、図４ないし図６に示すように、その組付け作業が完
了する。そこで、図示省略した草刈機のエンジンを始動
してクラッチ装置を接続操作すると、ミッションケース
５内のクランク機構により上部駆動部材７および下部駆
動部材８が相互に逆方向に往復駆動され、これらに接続
された上部刈刃体３および下部刈刃体４が、上部ガイド
板１と下部ガイド板２との間に挟持され、かつ各連結部
材６の各スペーサリング６ｃに各ガイド孔３ｂ，３ｂ，
…および各ガイド孔４ｂ，４ｂ，…が案内されること
で、相互に逆方向に往復駆動されるのであり、こうして
草刈作業が行われる。Thus, the upper cutting blade body 3 and the lower cutting blade body 4
As shown in FIGS. 4 to 6, the assembling work is completed. Therefore, when the engine of a mower (not shown) is started and the clutch device is connected and operated, the crank mechanism in the mission case 5 causes the upper drive member 7 and the lower drive member 8 to reciprocate in opposite directions and to be connected to them. The upper cutting blade body 3 and the lower cutting blade body 4 thus sandwiched are sandwiched between the upper guide plate 1 and the lower guide plate 2, and each spacer ring 6c of each connecting member 6 is provided with each guide hole 3b, 3b ,.
... and the guide holes 4b, 4b, ... are guided so that they are reciprocally driven in mutually opposite directions, and thus the mowing work is performed.

【００３５】その際、上部駆動部材７および下部駆動部
材８の外端部左右両側縁が左右一対のガイドピン付ネジ
部材１７，１７のガイドピン１７ｃ，１７ｃに摺接して
横振れが防止されるから、これらに接続された上部刈刃
体３および下部刈刃体４は、円滑かつ確実に往復摺動す
ることができる。また、上部連結ピン１１の下面は下部
駆動部材８の上面に対面し、下部連結ピン１２の上面は
上部駆動部材７の下面に対面しているが、上部連結ピン
１１と下部連結ピン１２とは上部駆動部材７および下部
駆動部材８の往復駆動方向に関して左右方向に相互に位
置をずらして配置されているので、上部連結ピン１１の
下面と下部連結ピン１２の上面とが相互に干渉して引掛
かることがなく、この点からも上部刈刃体３および下部
刈刃体４は円滑かつ確実に往復摺動することができる。At this time, the left and right outer edges of the upper drive member 7 and the lower drive member 8 are slidably contacted with the guide pins 17c, 17c of the pair of left and right guide pin screw members 17, 17 to prevent lateral shake. Therefore, the upper cutting blade body 3 and the lower cutting blade body 4 connected to these can smoothly and reliably slide back and forth. Further, the lower surface of the upper connecting pin 11 faces the upper surface of the lower driving member 8, and the upper surface of the lower connecting pin 12 faces the lower surface of the upper driving member 7, but the upper connecting pin 11 and the lower connecting pin 12 are Since the upper drive member 7 and the lower drive member 8 are arranged so as to be displaced from each other in the left-right direction with respect to the reciprocating drive direction, the lower surface of the upper connecting pin 11 and the upper surface of the lower connecting pin 12 interfere with each other and pull. From this point as well, the upper cutting blade body 3 and the lower cutting blade body 4 can smoothly and reliably slide back and forth without hanging.

【００３６】一方、このような草刈作業により上部刈刃
体３の各三角刈刃３ａまたは下部刈刃体４の各台形刈刃
４ａが摩滅して切れ味が悪化し、上部刈刃体３および下
部刈刃体４を取り外す場合は、まず、各ナット１５，１
５，１８，１８を取り外して上部押え板１３を上部ガイ
ド板１から分離し、窓孔１ｃ内に臨む上部連結ピン１１
を上方に引き抜く。同様に、各ナット１６，１６，１
９，１９を取り外して下部押え板１４を下部ガイド板２
から分離し、窓孔２ａ内に臨む下部連結ピン１２を下方
に引き抜く。なお、上部駆動部材７が下部駆動部材８よ
り前進していて下部ガイド板２の窓孔２ａ内に上部連結
ピン１１および下部連結ピン１２が露出する状態では、
下部ガイド板２から下部押え板１４を分離して上部連結
ピン１１および下部連結ピン１２を下方に引き抜くこと
ができ、この場合には、上部押え板１３の分離作業は省
略できる。On the other hand, due to such grass cutting work, the triangular cutting blades 3a of the upper cutting blade body 3 or the trapezoidal cutting blades 4a of the lower cutting blade body 4 are worn away to deteriorate the sharpness, and the upper cutting blade body 3 and the lower cutting blade body 3 When removing the cutting blade 4, first, each nut 15, 1
5, 18 and 18 are removed to separate the upper pressing plate 13 from the upper guide plate 1 and the upper connecting pin 11 facing the window hole 1c.
Pull out upward. Similarly, each nut 16,16,1
9 and 19 are removed and the lower presser plate 14 is attached to the lower guide plate 2
And the lower connecting pin 12 facing the inside of the window hole 2a is pulled out downward. In the state where the upper drive member 7 is advanced from the lower drive member 8 and the upper connecting pin 11 and the lower connecting pin 12 are exposed in the window hole 2a of the lower guide plate 2,
The lower holding plate 14 can be separated from the lower guide plate 2 to pull out the upper connecting pin 11 and the lower connecting pin 12, and in this case, the work of separating the upper holding plate 13 can be omitted.

【００３７】続いて、上部ガイド板１と下部ガイド板２
とを相互に着脱自在に連結している各連結部材６の各連
結ボルト６ａと各連結ナット６ｂとを分離して取り外
す。そして各スペーサリング６ｃと共に上部刈刃体３お
よび下部刈刃体４を上部駆動部材７および下部駆動部材
８から分離して引き抜くことで、上部刈刃体３および下
部刈刃体４の取外し作業が完了する。Subsequently, the upper guide plate 1 and the lower guide plate 2
The connecting bolts 6a and the connecting nuts 6b of the connecting members 6 which are detachably connected to each other are separated and removed. Then, by separating the upper cutting blade body 3 and the lower cutting blade body 4 together with the spacer rings 6c from the upper driving member 7 and the lower driving member 8, the upper cutting blade body 3 and the lower cutting blade body 4 can be removed. Complete.

【００３８】なお、本実施例では、上部刈刃体３が多数
の三角刈刃３ａを有し、下部刈刃体４が多数の台形刈刃
４ａを有する構造としたが、反対に上部刈刃体３が多数
の台形刈刃を有し、下部刈刃体４が多数の三角刈刃を有
する構造としてもよい。また上部刈刃体３および下部刈
刃体４が、いずれも多数の台形刈刃を有する構造とし、
あるいは反対にいずれも多数の三角刈刃を有する構造と
してもよい。特に、刈刃自体の形状や数は特に限定され
るものではなく、任意に選定できる。In this embodiment, the upper cutting blade body 3 has a large number of triangular cutting blades 3a, and the lower cutting blade body 4 has a large number of trapezoidal cutting blades 4a. The body 3 may have many trapezoidal cutting blades, and the lower cutting blade body 4 may have many triangular cutting blades. Further, the upper cutting blade body 3 and the lower cutting blade body 4 each have a structure having a large number of trapezoidal cutting blades,
Alternatively, on the contrary, any of them may have a structure having a large number of triangular cutting blades. In particular, the shape and number of cutting blades themselves are not particularly limited and can be arbitrarily selected.

【００３９】[0039]

【発明の効果】以上説明したとおり、基本的手段を採用
した本発明によれば、上下一対のガイド板を相互に連結
している各連結部材を取り外し、ミッションケースに連
結支持された一方のガイド板（例えば上部ガイド板）か
ら他方のガイド板（例えば下部ガイド板）を分離し、ミ
ッションケース外に露出した下部駆動部材の外端部と下
部刈刃体の基端部とを結合しているピンを抜き取って下
部駆動部材から下部刈刃体を分離し、続いて上部駆動部
材の外端部と上部刈刃体の基端部とを結合しているピン
を抜き取って上部駆動部材から上部刈刃体を分離するこ
とで、上下一対のバリカン式刈刃体の取外し作業が完了
し、これと反対の手順で組付け作業が完了する。従っ
て、一方のガイド板をミッションケースに連結支持した
まま、ミッションケースの分解作業を伴うことなくより
簡単かつ迅速に上下一対のバリカン式刈刃体の取外し作
業及び組付け作業を行うことができ、作業現場で素早く
バリカン式刈刃体を交換することが可能となり、作業能
率を大幅に向上することができる。As described above, according to the present invention, which employs the basic means, the respective guides connected to the mission case are removed by removing the connecting members connecting the upper and lower guide plates to each other. The other guide plate (for example, the lower guide plate) is separated from the plate (for example, the upper guide plate), and the outer end of the lower drive member exposed to the outside of the mission case and the base end of the lower cutting blade are joined together. Remove the pin to separate the lower cutting blade from the lower drive member, and then remove the pin connecting the outer end of the upper drive member and the base end of the upper cutting blade to remove the upper cutting member from the upper drive member. By separating the blade body, the work of removing the pair of upper and lower clipper-type cutting blade bodies is completed, and the assembling work is completed in the opposite procedure. Therefore, with one guide plate connected to and supported by the mission case, the work of removing and assembling the pair of upper and lower clipper-type cutting blade bodies can be performed easily and quickly without disassembling the mission case. The hair clipper-type cutting blade can be quickly replaced at the work site, greatly improving work efficiency.

【００４０】また具体的手段を採用した本発明によれ
ば、基本的手段の発明と略同様の手順による他、上下一
対のバリカン式刈刃体の各ガイド孔を貫通して上下一対
のガイド板を相互に連結している各連結部材を取り外し
た上で、上部ガイド板および下部ガイド板からそれぞれ
上部押え板および下部押え板を取り外し、上部ガイド板
および下部ガイド板の各窓孔内に露出する上部連結ピン
および下部連結ピンをそれぞれ抜き取り、上部駆動部材
および下部駆動部材からそれぞれ上部刈刃体および下部
刈刃体を分離することでも、上下一対のバリカン式刈刃
体の取外し作業が完了し、またこれと反対の手順で組付
け作業が完了する。従って、上下一対のガイド板をミッ
ションケースに連結支持したままで、ミッションケース
の分解作業を伴うことなく、より簡単かつ迅速に上下一
対のバリカン式刈刃体の取外し作業及び組付け作業を行
うことができる。Further, according to the present invention which adopts concrete means, the procedure is substantially the same as that of the invention of the basic means, and the pair of upper and lower guide plates are passed through the respective guide holes of the pair of upper and lower hair clipper type cutting blades. After removing the connecting members that connect each other, remove the upper holding plate and the lower holding plate from the upper guide plate and the lower guide plate respectively, and expose them in the window holes of the upper guide plate and the lower guide plate. By pulling out the upper connecting pin and the lower connecting pin respectively and separating the upper cutting blade body and the lower cutting blade body from the upper driving member and the lower driving member, respectively, the work of removing the pair of upper and lower clipper type cutting blade bodies is completed, The assembly work is completed in the reverse procedure. Therefore, with the pair of upper and lower guide plates connected and supported to the mission case, the work of removing and assembling the pair of upper and lower clipper-type cutting blades can be performed easily and quickly without disassembling the mission case. You can

【００４１】ここで、上部ガイド板および下部ガイド板
にそれぞれ上部押え板および下部押え板を着脱自在に固
定するネジ部材として、左右一対のガイドピン付ネジ部
材を設けた手段でも、前述と同様の手順により上下一対
のバリカン式刈刃体の取外し作業および組付け作業が完
了する。そしてこの手段では、組み付けられた上下一対
のバリカン式刈刃体が上下一対の駆動部材により相互に
逆方向に往復駆動される際に、上下一対の駆動部材の外
端部左右両側縁が左右一対のガイドピン付ネジ部材の中
間部のガイドピンに摺接して横振れが防止されるから、
上下一対のバリカン式刈刃体の円滑かつ確実な作動を確
保することができる。Here, a means provided with a pair of right and left guide pin screw members as screw members for detachably fixing the upper and lower press plates to the upper guide plate and the lower guide plate, respectively, is similar to the above. The procedure completes the work of removing and assembling the pair of upper and lower clipper-type cutting blades. In this means, when the pair of upper and lower clipper-type cutting blades that are assembled are reciprocally driven in opposite directions by the pair of upper and lower drive members, the left and right edges of the outer end portions of the pair of upper and lower drive members are paired with each other. Since the horizontal runout is prevented by sliding contact with the guide pin in the middle of the screw member with guide pin of
It is possible to ensure smooth and reliable operation of the pair of upper and lower clipper type cutting blades.

【００４２】また、上下一対の駆動部材の往復駆動方向
に関し、左右方向に相互に位置をずらして上部連結ピン
と下部連結ピンとを配置した手段では、組み付けられた
上下一対のバリカン式刈刃体が上下一対の駆動部材によ
り相互に逆方向に往復駆動される際に、上部連結ピンお
よび下部連結ピンは内端部同士が干渉することなくそれ
ぞれ円滑に摺動動作するから、上下一対のバリカン式刈
刃体の円滑かつ確実な作動を確保することができる。With respect to the reciprocating driving direction of the pair of upper and lower driving members, the upper connecting pin and the lower connecting pin are arranged so as to be displaced from each other in the left and right direction. When reciprocally driven in opposite directions by a pair of driving members, the upper connecting pin and the lower connecting pin slide smoothly without their inner ends interfering with each other. It is possible to ensure smooth and reliable operation of the body.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の一実施例を示す分解斜視図である。FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

【図２】一実施例が適用される上下一対のバリカン式刈
刃体の取外し状態を示す平面図である。FIG. 2 is a plan view showing a detached state of a pair of upper and lower clipper-type cutting blades to which an embodiment is applied.

【図３】一実施例における上下一対のガイド板の連結構
造を示す部分拡大側面図である。FIG. 3 is a partially enlarged side view showing a connecting structure of a pair of upper and lower guide plates in one embodiment.

【図４】一実施例を示す部分側面断面図である。FIG. 4 is a partial side sectional view showing an embodiment.

【図５】一実施例を示す部分平面図である。FIG. 5 is a partial plan view showing an embodiment.

【図６】一実施例が適用される上下一対のバリカン式刈
刃体の組付け状態を示す平面図である。FIG. 6 is a plan view showing an assembled state of a pair of upper and lower clipper-type cutting blades to which an embodiment is applied.

【図７】従来例の全体構成を示す斜視図である。FIG. 7 is a perspective view showing an overall configuration of a conventional example.

【符号の説明】[Explanation of symbols]

１ 上部ガイド板 １ａ，１ｂ 雄ネジ部材 １ｃ 窓孔 １ｄ 雄ネジ部材 １ｅ ネジ挿通孔 ２ 下部ガイド板 ２ａ 窓孔 ２ｂ 雄ネジ部材 ２ｃ ネジ挿通孔 ３ 上部刈刃体 ３ａ 三角刈刃 ３ｂ ガイド孔 ４ 下部刈刃体 ４ａ 台形刈刃 ４ｂ ガイド孔 ５ ミッションケース ６ 連結部材 ６ａ 連結ボルト ６ｂ 連結ナット ６ｃ スペーサリング ７ 上部駆動部材 ７ａ ピン挿通孔 ８ 下部駆動部材 ８ａ ピン挿通孔 ９ 上部接続片 ９ａ，９ｂ リベット ９ｃ ピン挿通孔 １０ 下部接続片 １０ａ，１０ｂ リベット １０ｃ ピン挿通孔 １１ 上部連結ピン １２ 下部連結ピン １３ 上部押え板 １３ａ，１３ｂ ネジ挿通孔 １４ 下部押え板 １４ａ，１４ｂ ネジ挿通孔 １５，１６，１８，１９ ナット １７ ガイドピン付ネジ部材 １７ａ 上部 １７ｂ 下部 １７ｃ ガイドピン 1 Upper guide plate 1a, 1b Male screw member 1c Window hole 1d Male screw member 1e Screw insertion hole 2 Lower guide plate 2a Window hole 2b Male screw member 2c Screw insertion hole 3 Upper cutting blade body 3a Triangular cutting blade 3b Guide hole 4 Lower part Cutting blade body 4a Trapezoid cutting blade 4b Guide hole 5 Mission case 6 Connecting member 6a Connecting bolt 6b Connecting nut 6c Spacer ring 7 Upper drive member 7a Pin insertion hole 8 Lower drive member 8a Pin insertion hole 9 Upper connection piece 9a, 9b Rivet 9c Pin insertion hole 10 Lower connection pieces 10a, 10b Rivet 10c Pin insertion hole 11 Upper connection pin 12 Lower connection pin 13 Upper pressing plate 13a, 13b Screw insertion hole 14 Lower pressing plate 14a, 14b Screw insertion hole 15, 16, 18, 19 Nut 17 Screw member with guide pin 17a Upper part 17b Lower part 17c Guide pin

Claims (4)

【特許請求の範囲】[Claims] 【請求項１】 上下一対の長板部材からなり、その一方
の基端部がミッションケースに連結支持され、相互に複
数本の連結部材を介し所定間隔を開けて着脱自在に連結
される上下一対のガイド板と、上記連結部材が貫通して
これに案内されるガイド孔を有し、上記一対のガイド板
間に挟持されて長手方向に往復摺動自在に案内される上
下一対のバリカン式刈刃体と、上記ミッションケース内
の駆動機構に内端部がそれぞれ伝動構成され、外端部が
上記一対のガイド板間に臨んで相互に逆方向に往復駆動
される上下一対の駆動部材とを備え、 上記一対のバリカン式刈刃体の上部刈刃体の基端部は上
記一対の駆動部材の上部駆動部材の外端部に、下部刈刃
体の基端部は下部駆動部材の外端部にそれぞれ着脱自在
にピン結合したことを特徴とするバリカン式刈刃体の着
脱構造。1. A pair of upper and lower members which are composed of a pair of upper and lower long plate members, one base end portion of which is connected to and supported by a mission case, and which are detachably connected to each other through a plurality of connecting members at predetermined intervals. A guide plate and a guide hole through which the connecting member penetrates and is guided by the guide member, and a pair of upper and lower clipper-type cuttings that are sandwiched between the pair of guide plates and are slidably guided in the longitudinal direction. A blade and a pair of upper and lower drive members, each having an inner end portion configured to be transmitted to a drive mechanism in the mission case, and an outer end portion facing between the pair of guide plates and being reciprocally driven in mutually opposite directions. The pair of hair clipper-type cutting blades has a base end portion of an upper cutting blade body at an outer end portion of an upper drive member of the pair of drive members, and a base end portion of a lower cutting blade body at an outer end portion of a lower drive member. Bars characterized by being detachably attached to the respective parts by pins. Detachable structure of the can-type cutting blade body. 【請求項２】 上記上部刈刃体の基端部または上部駆動
部材の外端部のいずれか一方の上面に固定されて他方の
上面に接合し、上下方向に貫通する上部連結ピンを介し
て他方に着脱自在に連結される上部接続片と、下部刈刃
体の基端部または下部駆動部材の外端部のいずれか一方
の下面に固定されて他方の下面に接合し、上下方向に貫
通する下部連結ピンを介して他方に着脱自在に連結され
る下部接続片とを設けると共に、 上記一対のガイド板の上部ガイド板には上記上部接続片
が移動自在に嵌入する窓孔を、下部ガイド板には上記下
部接続片が移動自在に嵌入する窓孔を、それぞれ形成
し、 上部ガイド板にはその窓孔内に臨む上部接続片の上面を
覆って上部連結ピンを抜け止めする上部押え板を、下部
ガイド板にはその窓孔内に臨む下部接続片の下面を覆っ
て下部連結ピンを抜け止めする下部押え板を、それぞれ
着脱自在に固定したことを特徴とする請求項１記載のバ
リカン式刈刃体の着脱構造。2. An upper connecting pin fixed to and joined to an upper surface of one of a base end portion of the upper cutting blade body and an outer end portion of the upper drive member, and an upper connecting pin penetrating in the vertical direction. It is fixed to the lower surface of one of the upper connecting piece that is detachably connected to the other and the base end of the lower cutting blade or the outer end of the lower drive member, and is joined to the other lower surface and penetrates in the vertical direction. And a lower connecting piece detachably connected to the other via a lower connecting pin, and a window hole into which the upper connecting piece is movably fitted is formed in the upper guide plates of the pair of guide plates. Each of the plates has a window hole into which the lower connecting piece is movably fitted, and the upper guide plate covers the upper surface of the upper connecting piece facing the window hole to prevent the upper connecting pin from coming off. On the lower guide plate, Detachable structure of the hair clipper formula cutting blade of claim 1, wherein the lower pressing plate, characterized by being detachably fixed respectively covering the lower surface to retaining the lower coupling pin piece. 【請求項３】 上記上部ガイド板に上部押え板を、下部
ガイド板に下部押え板をそれぞれ着脱自在に固定するネ
ジ部材として、上記上部駆動部材および下部駆動部材の
外端部左右両側縁に摺接するガイドピンを中間部に有し
て上下一対のガイド板を相互に連結する左右一対のガイ
ドピン付ネジ部材を設けたことを特徴とする請求項２記
載のバリカン式刈刃体の着脱構造。3. An upper pressing plate is attached to the upper guide plate, and a lower pressing plate is detachably fixed to the lower guide plate. 3. The clipper-type cutting blade attachment / detachment structure according to claim 2, further comprising a pair of left and right screw members with guide pins for connecting a pair of upper and lower guide plates to each other with a guide pin in contact with the middle portion. 【請求項４】 上記上部連結ピンと下部連結ピンとは、
上下一対の駆動部材の往復駆動方向に関して左右方向に
相互に位置をずらして配置したことを特徴とする請求項
１ないし３記載のバリカン式刈刃体の着脱構造。4. The upper connecting pin and the lower connecting pin,
4. The clipper-type cutting blade attachment / detachment structure according to claim 1, wherein the pair of upper and lower drive members are arranged so as to be displaced from each other in the left-right direction with respect to the reciprocating drive direction.