WO2021024580A1 - Reciprocating cutting blade device and brush cutter - Google Patents

Reciprocating cutting blade device and brush cutter Download PDF

Info

Publication number
WO2021024580A1
WO2021024580A1 PCT/JP2020/020759 JP2020020759W WO2021024580A1 WO 2021024580 A1 WO2021024580 A1 WO 2021024580A1 JP 2020020759 W JP2020020759 W JP 2020020759W WO 2021024580 A1 WO2021024580 A1 WO 2021024580A1
Authority
WO
WIPO (PCT)
Prior art keywords
guide member
cutting blade
reciprocating
state
blade device
Prior art date
Application number
PCT/JP2020/020759
Other languages
French (fr)
Japanese (ja)
Inventor
清水　邦夫
久夫 児玉
Original Assignee
株式会社やまびこ
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 株式会社やまびこ filed Critical 株式会社やまびこ
Publication of WO2021024580A1 publication Critical patent/WO2021024580A1/en

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/02—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having reciprocating cutters
    • A01D34/08—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having reciprocating cutters hand-guided by a walking operator
    • A01D34/10—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having reciprocating cutters hand-guided by a walking operator with motor driven cutters or wheels
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/02—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having reciprocating cutters
    • A01D34/13—Cutting apparatus
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/02—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having reciprocating cutters
    • A01D34/13—Cutting apparatus
    • A01D34/17—Holding-down devices for the knife

Definitions

  • the present invention relates to a reciprocating moving blade device and a reaper.
  • a cutting machine for cutting and pruning branches and leaves is generally known (Patent Document 1 below). reference).
  • the reciprocating moving cutting blade has the advantage that scattered objects are less likely to be generated during work compared to the rotary blade and nylon rope cutter used in general cutting machines, so taking advantage of this advantage, hand-held operation
  • a mowing machine has been proposed in which a reciprocating moving blade device is provided at the tip of a rod to mow the ground (see Patent Document 2 below).
  • the reciprocating cutting blade is provided with a flat plate-shaped base extending in the longitudinal direction and a plurality of blades projecting from the base in a direction intersecting the longitudinal direction, and two blades are provided. Stacked in the thickness direction, they form a pair of reciprocating cutting blades. Then, the pair of reciprocating cutting blades reciprocate in the longitudinal direction while sliding on the contact surface to apply a cutting action to the blade portion of one blade and the blade portion of the other blade.
  • the reciprocating moving cutting blade device has a problem that uncut parts are likely to occur because it is difficult to apply the above-mentioned cutting action to grass that grows near the wall.
  • the guide member becomes a large resistance when advancing the reciprocating cutting blade device. Therefore, during normal work without processing grass near the wall, the work is performed. There is a problem that the load becomes large. This problem becomes particularly remarkable when the reciprocating cutting blade device is advanced in the direction intersecting the reciprocating movement of the cutting blade to perform the cutting operation.
  • the present invention has been proposed to deal with such a problem. That is, in the reciprocating blade cutting device, it is possible to mow the grass that grows near the wall without leaving any residue, and to prevent the workload from becoming large during normal work that does not process the grass near the wall. Is the subject of the present invention.
  • the present invention has the following configurations.
  • a pair of reciprocating cutting blades that are arranged so as to be overlapped with each other in the thickness direction and a support member that supports the reciprocating moving cutting blade so as to be reciprocating in the longitudinal direction are provided.
  • a guide member to be used in a state of protruding in the protruding direction of the reciprocating cutting blade is provided, and the guide member is attached so as to be selectable between a used state and a stored state of not protruding in the protruding direction of the reciprocating cutting blade.
  • a reciprocating cutting blade device characterized by this.
  • the support member of the reciprocating cutting blade device is provided with a guide member that protrudes in the protruding direction (advancing direction) of the reciprocating cutting blade by selecting the usage state. Therefore, the grass that grows near the wall can be cut by being guided by the reciprocating cutting blade by the guide member, and the grass that grows near the wall can be cut without leaving any residue. Further, since the guide member can be selected in a stored state in which it does not protrude in the protruding direction of the reciprocating cutting blade, the reciprocating cutting blade alone is used for mowing during normal work, the work load is small, and scattered matter is unlikely to occur. You can work safely.
  • FIG. 3 is a sectional view taken along the line AA in FIG.
  • Explanatory drawing which showed the attachment state of the guide member (the first guide member and the second guide member) ((a) is a non-fixed state in a used state, (b) is a non-fixed state in a stored state).
  • Explanatory drawing which showed the mounting state of the guide member (the first guide member and the second guide member) ((a) is the fixed state in the retracted state, (b) is the fixed state in the state where only the first guide member is used).
  • the reciprocating moving cutting blade type reaper (hereinafter, simply reaping machine) 1 is provided with an operating rod 2, and a T-shaped reciprocating moving cutting blade is provided at the tip of the operating rod 2.
  • the device 10 is equipped.
  • An operation handle (front handle) 3 is provided on the base end side of the operation rod 2, and a housing 4 in which a motor, which is a drive source of the reciprocating cutting blade device 10, is housed is attached.
  • the housing 4 includes a rear handle 4A and holds a battery 5 that serves as a power source for the motor.
  • the motor in the housing 4 transmits power to the drive shaft in the control stick 2.
  • the reciprocating cutting blade device 10 has a transmission case 11 attached to the tip of the operating rod 2, a support member 12 supported by the transmission case 11, and a reciprocating movement rotatably supported by the support member 12.
  • a cutting blade (hereinafter, simply cutting blade) 13 is provided.
  • the transmission case 11 includes an operation stick attachment portion 11A to which the tip of the operation stick 2 is attached, and also includes an angle adjustment mechanism 11B for adjusting the angle between the operation stick 2 and the transmission case 11 by holding the adjustment handle 11C.
  • the transmission case 11 is provided with a transmission mechanism that transmits the power of the drive shaft in the operation stick 2 to the cutting blade 13.
  • the support member 12 extends in a direction intersecting the traveling direction of the reaper 1 indicated by an arrow, and the cutting blade 13 is supported by the support member 12 so as to reciprocate along the longitudinal direction. There is.
  • the cutting blade 13 is provided with a long hole long in the reciprocating direction, and the adjusting screw 30 penetrates the long hole and is screwed into the support member 12.
  • the screwed state of the adjusting screw 30 is important for adjusting the distance between the pair of cutting blades 13, and the screwed state of the adjusting screw 30 is fixed by the fixing nut 31 after proper adjustment.
  • the cutting blade 13 has a blade portion that protrudes in the traveling direction.
  • a first guide member 14 and a second guide member 15 are provided at the ends of the support member 12.
  • first guide member 14 and the second guide member 15 are provided at the ends of the support member 12.
  • both the first guide member 14 and the second guide member 15 are provided will be described, but either one may be provided as one guide member.
  • FIG. 1 shows the usage state of the first guide member 14 and the second guide member 15, and the first guide member 14 and the second guide member 15 are in the traveling direction of the reaper 1 indicated by the arrows. It is provided so as to project in the projecting direction of the cutting blade 13.
  • the second guide member 15 is provided so as to project further in the traveling direction (protruding direction of the cutting blade 13) from the tip of the first guide member 14.
  • the first guide member 14 and the second guide member 15 are rotatably supported at both left and right ends of the support member 12. More specifically, the first guide member 14 and the second guide member 15 are coaxially supported on the support member 12 by bolts 16.
  • the first guide member 14 is provided with a blade portion 14A on a side portion facing the cutting blade 13.
  • the tip portion of the first guide member 14 on the side facing the cutting blade 13 is a portion that guides grass or the like to the cutting blade 13, and the blade portion 14A and the mounting portion 14B are provided on the base end side thereof.
  • the second guide member 15 includes a bendable guide portion 15A and a mounting portion 15B. In order to pivotally support the first guide member 14 and the second guide member 15 to the support member 12, bolts 16 are inserted into the holes 14C of the mounting portion 14B and the holes 15C of the mounting portion 15B via the spacer 17, and the spacer 17 is inserted. A washer 18 and a disc spring 19 are provided around the wheel.
  • a lever member 20 is pivotally supported adjacent to the first guide member 14 and the second guide member 15.
  • the lever member 20 includes a lever portion 20A and a mounting portion 20B, a bolt 22 is inserted into a hole 20C of the mounting portion 20B via a spacer 21, and a washer 23 and a disc spring 24 are provided around the spacer 21. Has been done.
  • the lever member 20 selectively fixes the first guide member 14 and the second guide member 15 in a used state or a stored state
  • the mounting portion 20B of the lever member 20 is provided with an engaging convex portion 20D.
  • the mounting portion 14B of the first guide member 14 is provided with an engaging concave portion 14D that engages with the engaging convex portion 20D in the used state and an engaging concave portion 14E that engages with the engaging convex portion 20D in the stored state.
  • the mounting portion 15B of the second guide member 15 is provided with an engaging concave portion 15D that engages with the engaging convex portion 20D in the used state and an engaging concave portion 15E that engages with the engaging convex portion 20D in the stored state. ing.
  • the first guide member 14 and the second guide member 15 are fixed in a state where the tip of the lever portion 20A is directed in the direction opposite to the traveling direction, and the lever portion 20A is moved along the longitudinal direction of the support member 12.
  • the first guide member 14 and the second guide member 15 are in a rotatable state in the oriented state.
  • such a mowing machine 1 moves the first guide member 14 and the second guide member 15 to the front side of the tip of the first guide member 14 by performing the mowing operation in the used state.
  • the protruding guide portion 15A of the second guide member 15 and the tip portion of the first guide member 14 guide grass or the like near the wall between the blade portion 14A of the first guide member 14 and the cutting blade 13, and the first guide member A grass or the like is sandwiched between the blade portion 14A of 14 and the cutting blade 13 for cutting. As a result, grass near the wall can be cut without leaving any residue.
  • both the first guide member 14 and the second guide member 15 are in the used state, but even when only the first guide member 14 is in the used state, the tip portion of the first guide member 14 is near the wall. Since the grass or the like is guided between the blade portion 14A of the first guide member 14 and the cutting blade 13, the grass or the like near the wall can be cut in the same manner.
  • the first guide member 14 and the second guide member 15 are stored so that the first guide member 14 and the second guide member 15 are large. You can avoid receiving resistance.
  • the cutting blade 13 can be reciprocated to perform a safe cutting work with less generation of scattered matter, and an efficient cutting work with the width of the cutting blade 13 as the working width can be performed. ..
  • the cutting work has been described, but when the cutting work such as the hedge trimmer is performed, the guide member (first guide member 14 or the second guide member 15) is similarly used and the wall is near the wall.
  • the cutting work such as the above can be performed, and the guide member (first guide member 14 or the second guide member 15) can be stored so that the normal cutting work can be performed with a small workload.
  • Reciprocating blade type reaper (reaper), 2: Operation stick, 3: Operation handle, 4: Housing, 4A: Rear handle, 5: Battery, 10: Reciprocating cutting blade device, 11: Transmission case, 11A: Operating rod mounting part, 11B: Angle adjustment mechanism, 11C: Adjustment handle, 12: Support member, 13: Reciprocating cutting blade (cutting blade), 14: 1st guide member, 14A: blade part, 14B: mounting part, 14C: hole, 14D, 14E: engaging recess, 15: 2nd guide member, 15A: guide part, 15B: mounting part, 15C: hole, 15D, 15E: engaging recess, 16, 22: Bolt, 17, 21: Spacer, 18, 23: Washer, 19, 24: Belleville spring, 20: Lever member, 20A: Lever part, 20B: Mounting part, 20C: hole, 20D: engaging convex part, 30: adjusting screw, 31: fixing nut,

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Harvester Elements (AREA)

Abstract

This reciprocating cutting blade device enables cutting grass, etc., growing near a wall without leaving uncut grass.　This reciprocating cutting blade device is provided with a pair of reciprocating cutting blades which are arranged in a state overlapping each other in the thickness direction, and a support member which supports the reciprocating cutting blades so as to allow reciprocating movement in the longitudinal direction, wherein, on the ends of the support member, a guide member is provided which is used in a state projecting in the direction of projection of the reciprocating blades, and the guide members are attached so as to enable selecting a usage state, or a storage state in which the guide members do not project in the direction of projection of the reciprocating blades.

Description

往復動刈刃装置及び刈り払い機Reciprocating blade device and reaper
　本発明は、往復動刈刃装置及び刈り払い機に関するものである。 The present invention relates to a reciprocating moving blade device and a reaper.
　往復動式（所謂バリカン式）の刈刃を具備した往復動刈刃装置を備えたものとしては、枝葉の刈り込みや剪定作業を行う刈り込み機（ヘッジトリマ）が一般に知られている（下記特許文献１参照）。 As a device provided with a reciprocating moving cutting blade equipped with a reciprocating moving type (so-called hair clipper type) cutting blade, a cutting machine (hedge trimmer) for cutting and pruning branches and leaves is generally known (Patent Document 1 below). reference).
　また、往復動刈刃は、一般の刈り払い機に採用されている回転刃やナイロンロープカッターに比べると、作業時に飛散物が発生し難い利点があるので、この利点を生かし、手持ち式の操作桿の先端に往復動刈刃装置を装備して地面の草刈り作業を行う刈り払い機が提案されている（下記特許文献２参照）。 In addition, the reciprocating moving cutting blade has the advantage that scattered objects are less likely to be generated during work compared to the rotary blade and nylon rope cutter used in general cutting machines, so taking advantage of this advantage, hand-held operation A mowing machine has been proposed in which a reciprocating moving blade device is provided at the tip of a rod to mow the ground (see Patent Document 2 below).
　往復動刈刃は、一枚の刃物が、長手方向に延長する平板状の基部とこの基部から長手方向に交差する方向に突設された複数の刃部を備えており、２枚の刃物が厚さ方向に重ねられて、一対の往復動刈刃を構成している。そして、一対の往復動刈刃は、接触面で摺動しながら長手方向に往復移動することで、一方の刃物の刃部と他方の刃物の刃部に挟まったものに切断作用を加える。 The reciprocating cutting blade is provided with a flat plate-shaped base extending in the longitudinal direction and a plurality of blades projecting from the base in a direction intersecting the longitudinal direction, and two blades are provided. Stacked in the thickness direction, they form a pair of reciprocating cutting blades. Then, the pair of reciprocating cutting blades reciprocate in the longitudinal direction while sliding on the contact surface to apply a cutting action to the blade portion of one blade and the blade portion of the other blade.
特開２００８－１３６３７０号公報Japanese Unexamined Patent Publication No. 2008-136370 特開２０１６－４９０８２号公報Japanese Unexamined Patent Publication No. 2016-49082
　往復動刈刃装置は、壁際に生えた草などに対しては、前述した切断作用が加え難いため、刈り残しが生じ易くなる問題がある。これに対しては、往復動刈刃装置の端部にガイド部材を設けて壁際の草などを往復動する刈刃に導くことが考えられる。しかしながら、往復動刈刃装置の端部にガイド部材が常設されていると、ガイド部材が往復動刈刃装置を進行させる際の大きな抵抗になるので、壁際の草を処理しない通常作業時には、作業負荷が大きくなってしまう問題が生じる。この問題は、特に、往復動刈刃装置を刈刃の往復動に対して交差する方向に進行させて、刈り払い作業を行う場合などに顕著になる。 The reciprocating moving cutting blade device has a problem that uncut parts are likely to occur because it is difficult to apply the above-mentioned cutting action to grass that grows near the wall. To this end, it is conceivable to provide a guide member at the end of the reciprocating cutting blade device to guide grass or the like near the wall to the reciprocating cutting blade. However, if a guide member is permanently installed at the end of the reciprocating blade cutting device, the guide member becomes a large resistance when advancing the reciprocating cutting blade device. Therefore, during normal work without processing grass near the wall, the work is performed. There is a problem that the load becomes large. This problem becomes particularly remarkable when the reciprocating cutting blade device is advanced in the direction intersecting the reciprocating movement of the cutting blade to perform the cutting operation.
　本発明は、このような問題に対処するために提案されたものである。すなわち、往復動刈刃装置において、壁際に生えた草などを刈り残し無く刈り取ることができるようにすること、壁際の草などを処理しない通常作業時に、作業負荷が大きくならないようにすること、などが本発明の課題である。 The present invention has been proposed to deal with such a problem. That is, in the reciprocating blade cutting device, it is possible to mow the grass that grows near the wall without leaving any residue, and to prevent the workload from becoming large during normal work that does not process the grass near the wall. Is the subject of the present invention.
　このような課題を解決するために、本発明は、以下の構成を具備するものである。
　厚さ方向に互いに重ねた状態で配備される一対の往復動刈刃と、前記往復動刈刃を長手方向に往復移動自在に支持する支持部材とを備え、前記支持部材の端部には、前記往復動刈刃の突出方向に突出した状態で使用するガイド部材が設けられ、前記ガイド部材は、使用状態と前記往復動刈刃の突出方向に突出しない収納状態を選択可能に取り付けられていることを特徴とする往復動刈刃装置。 In order to solve such a problem, the present invention has the following configurations.
A pair of reciprocating cutting blades that are arranged so as to be overlapped with each other in the thickness direction and a support member that supports the reciprocating moving cutting blade so as to be reciprocating in the longitudinal direction are provided. A guide member to be used in a state of protruding in the protruding direction of the reciprocating cutting blade is provided, and the guide member is attached so as to be selectable between a used state and a stored state of not protruding in the protruding direction of the reciprocating cutting blade. A reciprocating cutting blade device characterized by this.
　このような特徴を備えた本発明によると、使用状態を選択することで、往復動刈刃装置の支持部材には、往復動刈刃の突出方向（進行方向）に突出するガイド部材が設けられるので、壁際に生えた草などがガイド部材によって往復動刈刃に導かれて刈り取ることができ、壁際に生えた草などを刈り残し無く刈り取ることができる。また、ガイド部材は、往復動刈刃の突出方向に突出しない収納状態を選択することができるので、通常作業時には往復動刈刃のみで草刈りを行い、作業負荷が少なく、飛散物が発生し難い安全な作業を行うことができる。 According to the present invention having such a feature, the support member of the reciprocating cutting blade device is provided with a guide member that protrudes in the protruding direction (advancing direction) of the reciprocating cutting blade by selecting the usage state. Therefore, the grass that grows near the wall can be cut by being guided by the reciprocating cutting blade by the guide member, and the grass that grows near the wall can be cut without leaving any residue. Further, since the guide member can be selected in a stored state in which it does not protrude in the protruding direction of the reciprocating cutting blade, the reciprocating cutting blade alone is used for mowing during normal work, the work load is small, and scattered matter is unlikely to occur. You can work safely.
本発明の実施形態に係る往復動刈刃式の刈り払い機を示す全体斜視図。An overall perspective view showing a reciprocating blade type reaper according to an embodiment of the present invention. 支持部材に対するガイド部材（第１ガイド部材と第２ガイド部材）の取り付け状態を示した説明図（分解斜視図）。Explanatory drawing (expanded perspective view) which showed the attachment state of the guide member (the first guide member and the second guide member) to a support member. 支持部材に対するガイド部材（第１ガイド部材と第２ガイド部材）の取り付け状態を示した平面図。The plan view which showed the attachment state of the guide member (the 1st guide member and the 2nd guide member) with respect to a support member. 図３におけるＡ－Ａ断面図。FIG. 3 is a sectional view taken along the line AA in FIG. ガイド部材（第１ガイド部材と第２ガイド部材）の取り付け状態を示した説明図（（ａ）が使用状態における非固定状態、（ｂ）が収納状態における非固定状態）。Explanatory drawing which showed the attachment state of the guide member (the first guide member and the second guide member) ((a) is a non-fixed state in a used state, (b) is a non-fixed state in a stored state). ガイド部材（第１ガイド部材と第２ガイド部材）の取り付け状態を示した説明図（（ａ）が収納状態における固定状態、（ｂ）が第１ガイド部材のみ使用状態における固定状態）。Explanatory drawing which showed the mounting state of the guide member (the first guide member and the second guide member) ((a) is the fixed state in the retracted state, (b) is the fixed state in the state where only the first guide member is used).
　以下、図面を参照して本発明の実施形態を説明する。以下の説明で、異なる図における同一符号は同一機能の部位を示しており、各図における重複説明は適宜省略する。以下の説明では、往復動刈刃装置を備える刈り払い機を例に説明するが、往復動刈刃装置は、ヘッジトリマなどの刈り込み機として用いることもできる。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same reference numerals in different figures indicate parts having the same function, and duplicate description in each figure will be omitted as appropriate. In the following description, a mowing machine provided with a reciprocating moving cutting blade device will be described as an example, but the reciprocating moving cutting blade device can also be used as a cutting machine such as a hedge trimmer.
　図１に示すように、往復動刈刃式の刈り払い機（以下、単に刈り払い機）１は、操作桿２を備えており、この操作桿２の先端にＴ字状に往復動刈刃装置１０が装備されている。操作桿２の基端側には、操作ハンドル（フロントハンドル）３が設けられると共に、往復動刈刃装置１０の駆動源であるモータが収容されているハウジング４が取り付けられている。ハウジング４は、リアハンドル４Ａを備えると共に、モータの電源となるバッテリー５を保持している。ハウジング４内のモータは、操作桿２内の駆動軸に動力を伝達する。 As shown in FIG. 1, the reciprocating moving cutting blade type reaper (hereinafter, simply reaping machine) 1 is provided with an operating rod 2, and a T-shaped reciprocating moving cutting blade is provided at the tip of the operating rod 2. The device 10 is equipped. An operation handle (front handle) 3 is provided on the base end side of the operation rod 2, and a housing 4 in which a motor, which is a drive source of the reciprocating cutting blade device 10, is housed is attached. The housing 4 includes a rear handle 4A and holds a battery 5 that serves as a power source for the motor. The motor in the housing 4 transmits power to the drive shaft in the control stick 2.
　往復動刈刃装置１０は、操作桿２の先端に取り付けられている伝動ケース１１と、伝動ケース１１に支持されている支持部材１２と、支持部材１２に往復動自在に支持されている往復動刈刃（以下、単に刈刃）１３を備えている。伝動ケース１１は、操作桿２の先端が取り付けられる操作桿取り付け部１１Ａを備えると共に、調整ハンドル１１Ｃを持って操作桿２と伝動ケース１１の角度調整を行う角度調整機構１１Ｂなどを備えている。伝動ケース１１内には、操作桿２内の駆動軸の動力を刈刃１３に伝える伝動機構が設けられている。 The reciprocating cutting blade device 10 has a transmission case 11 attached to the tip of the operating rod 2, a support member 12 supported by the transmission case 11, and a reciprocating movement rotatably supported by the support member 12. A cutting blade (hereinafter, simply cutting blade) 13 is provided. The transmission case 11 includes an operation stick attachment portion 11A to which the tip of the operation stick 2 is attached, and also includes an angle adjustment mechanism 11B for adjusting the angle between the operation stick 2 and the transmission case 11 by holding the adjustment handle 11C. The transmission case 11 is provided with a transmission mechanism that transmits the power of the drive shaft in the operation stick 2 to the cutting blade 13.
　支持部材１２は、矢印で示した刈り払い機１の進行方向に対して交差する方向に延設されており、支持部材１２に長手方向に沿って往復動するように刈刃１３が支持されている。刈刃１３には、往復動する方向に長い長孔が設けられており、その長孔を調整ネジ３０が貫通して支持部材１２にねじ込まれている。調整ネジ３０のねじ込み状態は、一対の刈刃１３の間隔を調整する上で重要であり、適正な調整後に調整ネジ３０のねじ込み状態は固定ナット３１によって固定される。刈刃１３は、進行方向に向けて突出する刃部を有している。 The support member 12 extends in a direction intersecting the traveling direction of the reaper 1 indicated by an arrow, and the cutting blade 13 is supported by the support member 12 so as to reciprocate along the longitudinal direction. There is. The cutting blade 13 is provided with a long hole long in the reciprocating direction, and the adjusting screw 30 penetrates the long hole and is screwed into the support member 12. The screwed state of the adjusting screw 30 is important for adjusting the distance between the pair of cutting blades 13, and the screwed state of the adjusting screw 30 is fixed by the fixing nut 31 after proper adjustment. The cutting blade 13 has a blade portion that protrudes in the traveling direction.
　支持部材１２の端部には、第１ガイド部材１４と第２ガイド部材１５が設けられている。ここでは、第１ガイド部材１４と第２ガイド部材１５の両方を設ける例を説明するが、いずれか一方を一つのガイド部材として設けるものであってもよい。 A first guide member 14 and a second guide member 15 are provided at the ends of the support member 12. Here, an example in which both the first guide member 14 and the second guide member 15 are provided will be described, but either one may be provided as one guide member.
　図１には、第１ガイド部材１４と第２ガイド部材１５の使用状態が示されており、第１ガイド部材１４と第２ガイド部材１５は、矢印で示した刈り払い機１の進行方向（刈刃１３の突出方向）に突出するように設けられている。ここで、第２ガイド部材１５は、第１ガイド部材１４の先端より更に進行方向（刈刃１３の突出方向）に突出するように設けられている。 FIG. 1 shows the usage state of the first guide member 14 and the second guide member 15, and the first guide member 14 and the second guide member 15 are in the traveling direction of the reaper 1 indicated by the arrows. It is provided so as to project in the projecting direction of the cutting blade 13. Here, the second guide member 15 is provided so as to project further in the traveling direction (protruding direction of the cutting blade 13) from the tip of the first guide member 14.
　図２～図４に示すように、第１ガイド部材１４と第２ガイド部材１５は、支持部材１２の左右両端部において回転自在に軸支されている。より具体的には、第１ガイド部材１４と第２ガイド部材１５は、ボルト１６にて支持部材１２に同軸状に軸支されている。 As shown in FIGS. 2 to 4, the first guide member 14 and the second guide member 15 are rotatably supported at both left and right ends of the support member 12. More specifically, the first guide member 14 and the second guide member 15 are coaxially supported on the support member 12 by bolts 16.
　第１ガイド部材１４は、刈刃１３に対向する側部に刃部１４Ａが設けられている。第１ガイド部材１４における刈刃１３に対向する側部の先端部分は、草などを刈刃１３に導く部分であって、その基端側に刃部１４Ａと取り付け部１４Ｂを備えている。また、第２ガイド部材１５は、湾曲自在なガイド部１５Ａと取り付け部１５Ｂを備えている。第１ガイド部材１４と第２ガイド部材１５を支持部材１２に軸支するために、取り付け部１４Ｂの孔１４Ｃと取り付け部１５Ｂの孔１５Ｃに、スペーサ１７を介してボルト１６が挿入され、スペーサ１７の周りにワッシャ１８と皿バネ１９が設けられている。 The first guide member 14 is provided with a blade portion 14A on a side portion facing the cutting blade 13. The tip portion of the first guide member 14 on the side facing the cutting blade 13 is a portion that guides grass or the like to the cutting blade 13, and the blade portion 14A and the mounting portion 14B are provided on the base end side thereof. Further, the second guide member 15 includes a bendable guide portion 15A and a mounting portion 15B. In order to pivotally support the first guide member 14 and the second guide member 15 to the support member 12, bolts 16 are inserted into the holes 14C of the mounting portion 14B and the holes 15C of the mounting portion 15B via the spacer 17, and the spacer 17 is inserted. A washer 18 and a disc spring 19 are provided around the wheel.
　また、支持部材１２の端部には、第１ガイド部材１４と第２ガイド部材１５に隣接してレバー部材２０が軸支されている。レバー部材２０は、レバー部２０Ａと取り付け部２０Ｂを備えており、取り付け部２０Ｂの孔２０Ｃに、スペーサ２１を介してボルト２２が挿入され、スペーサ２１の周りにはワッシャ２３と皿バネ２４が設けられている。 Further, at the end of the support member 12, a lever member 20 is pivotally supported adjacent to the first guide member 14 and the second guide member 15. The lever member 20 includes a lever portion 20A and a mounting portion 20B, a bolt 22 is inserted into a hole 20C of the mounting portion 20B via a spacer 21, and a washer 23 and a disc spring 24 are provided around the spacer 21. Has been done.
　レバー部材２０は、第１ガイド部材１４と第２ガイド部材１５を使用状態又は収納状態で選択的に固定するものであり、レバー部材２０の取り付け部２０Ｂには、係合凸部２０Ｄが設けられ、第１ガイド部材１４の取り付け部１４Ｂには、使用状態で係合凸部２０Ｄに係合する係合凹部１４Ｄと収納状態で係合凸部２０Ｄに係合する係合凹部１４Ｅが設けられている。また、第２ガイド部材１５の取り付け部１５Ｂには、使用状態で係合凸部２０Ｄに係合する係合凹部１５Ｄと収納状態で係合凸部２０Ｄに係合する係合凹部１５Ｅが設けられている。 The lever member 20 selectively fixes the first guide member 14 and the second guide member 15 in a used state or a stored state, and the mounting portion 20B of the lever member 20 is provided with an engaging convex portion 20D. The mounting portion 14B of the first guide member 14 is provided with an engaging concave portion 14D that engages with the engaging convex portion 20D in the used state and an engaging concave portion 14E that engages with the engaging convex portion 20D in the stored state. There is. Further, the mounting portion 15B of the second guide member 15 is provided with an engaging concave portion 15D that engages with the engaging convex portion 20D in the used state and an engaging concave portion 15E that engages with the engaging convex portion 20D in the stored state. ing.
　レバー部材２０は、進行方向と逆向きにレバー部２０Ａの先端を向けた状態で、第１ガイド部材１４と第２ガイド部材１５を固定し、支持部材１２の長手方向に沿ってレバー部２０Ａを向けた状態で、第１ガイド部材１４と第２ガイド部材１５を回転可能な状態になる。 In the lever member 20, the first guide member 14 and the second guide member 15 are fixed in a state where the tip of the lever portion 20A is directed in the direction opposite to the traveling direction, and the lever portion 20A is moved along the longitudinal direction of the support member 12. The first guide member 14 and the second guide member 15 are in a rotatable state in the oriented state.
　第１ガイド部材１４と第２ガイド部材１５の使用状態において、図５（ａ）に示すように、レバー部材２０のレバー部２０Ａを支持部材１２の長手方向に沿うように回転すると、レバー部材２０の係合突起２０Ｄの係合が外れて、第１ガイド部材１４と第２ガイド部材１５はボルト１６の周りに回転自在な状態になる。この状態で、図５（ｂ）に示すように、第１ガイド部材１４を左回りに１８０°回転すると、第１ガイド部材１４の収納状態になり、第２ガイド部材１５を右回りに９０°回転すると、第２ガイド部材１５の収納状態になる。この際、第１ガイド部材１４は、進行方向と逆向きに先端が向き、第２ガイド部材１５は、支持部材１２に沿うように先端が向く。 When the lever portion 20A of the lever member 20 is rotated along the longitudinal direction of the support member 12 as shown in FIG. 5A in the used state of the first guide member 14 and the second guide member 15, the lever member 20 The engagement protrusion 20D is disengaged, and the first guide member 14 and the second guide member 15 are in a state of being rotatable around the bolt 16. In this state, as shown in FIG. 5B, when the first guide member 14 is rotated 180 ° counterclockwise, the first guide member 14 is in the stowed state, and the second guide member 15 is 90 ° clockwise. When it rotates, the second guide member 15 is stored. At this time, the tip of the first guide member 14 faces in the direction opposite to the traveling direction, and the tip of the second guide member 15 faces along the support member 12.
　図５（ｂ）の状態から、レバー部材２０を９０°右回りに回転させると、図６（ａ）に示す固定状態になる。この状態では、レバー部材２０の係合突起２０Ｄが第１ガイド部材１４の係合凹部１４Ｅ及び第２ガイド部材１５の係合凹部１５Ｅに係合して、第１ガイド部材１４と第２ガイド部材１５が収納状態で固定される。また、この状態から、一旦図５（ｂ）に示す状態にして、第１ガイド部材１４のみを１８０°右回りに回転させて、レバー部材２０を固定状態にすると、図６（ｂ）に示すように、第１ガイド部材１４を使用状態にして、第２ガイド部材１５のみを単独で収納状態にして固定することができる。 When the lever member 20 is rotated 90 ° clockwise from the state shown in FIG. 5B, the fixed state shown in FIG. 6A is obtained. In this state, the engaging protrusion 20D of the lever member 20 engages with the engaging recess 14E of the first guide member 14 and the engaging recess 15E of the second guide member 15, and the first guide member 14 and the second guide member 15 is fixed in the stored state. Further, from this state, once the state shown in FIG. 5B is set, only the first guide member 14 is rotated 180 ° clockwise to fix the lever member 20, and the lever member 20 is shown in FIG. 6B. As described above, the first guide member 14 can be used and only the second guide member 15 can be independently stored and fixed.
　このような刈り払い機１は、図１に示すように、第１ガイド部材１４と第２ガイド部材１５を使用状態にして刈り払い作業を行うことで、第１ガイド部材１４の先端より前側に突出している第２ガイド部材１５のガイド部１５Ａと第１ガイド部材１４の先端部分が、壁際の草などを第１ガイド部材１４の刃部１４Ａと刈刃１３の間に導き、第１ガイド部材１４の刃部１４Ａと刈刃１３とで草などを挟んで切断する。これにより、壁際の草などを刈り残し無く刈り取りことができる。この際、第２ガイド部材１５のガイド部１５Ａを湾曲自在な弾性部材にすることで、ガイド部１５Ａを壁に接触した状態が得やすくなり作業性を向上させることができる。ここでは、第１ガイド部材１４と第２ガイド部材１５の両方を使用状態にしているが、第１ガイド部材１４のみを使用状態にした場合にも、第１ガイド部材１４の先端部分が壁際の草などを第１ガイド部材１４の刃部１４Ａと刈刃１３の間に導くので、同様に壁際の草などを刈り取ることができる。 As shown in FIG. 1, such a mowing machine 1 moves the first guide member 14 and the second guide member 15 to the front side of the tip of the first guide member 14 by performing the mowing operation in the used state. The protruding guide portion 15A of the second guide member 15 and the tip portion of the first guide member 14 guide grass or the like near the wall between the blade portion 14A of the first guide member 14 and the cutting blade 13, and the first guide member A grass or the like is sandwiched between the blade portion 14A of 14 and the cutting blade 13 for cutting. As a result, grass near the wall can be cut without leaving any residue. At this time, by making the guide portion 15A of the second guide member 15 a bendable elastic member, it becomes easy to obtain a state in which the guide portion 15A is in contact with the wall, and workability can be improved. Here, both the first guide member 14 and the second guide member 15 are in the used state, but even when only the first guide member 14 is in the used state, the tip portion of the first guide member 14 is near the wall. Since the grass or the like is guided between the blade portion 14A of the first guide member 14 and the cutting blade 13, the grass or the like near the wall can be cut in the same manner.
　壁際の草を刈らないときには、図６（ａ）に示すように、第１ガイド部材１４と第２ガイド部材１５を収納状態にすることで、第１ガイド部材１４と第２ガイド部材１５が大きな抵抗を受けることを避けることができる。これにより、刈刃１３を往復動させて、飛散物の発生が少ない安全な刈り払い作業を行うことができると共に、刈刃１３の横幅を作業幅とする効率的な刈り払い作業を行うことできる。 When the grass near the wall is not cut, as shown in FIG. 6A, the first guide member 14 and the second guide member 15 are stored so that the first guide member 14 and the second guide member 15 are large. You can avoid receiving resistance. As a result, the cutting blade 13 can be reciprocated to perform a safe cutting work with less generation of scattered matter, and an efficient cutting work with the width of the cutting blade 13 as the working width can be performed. ..
　また、壁際の草を刈る際に第２ガイド部材１５が邪魔になるような状況に対しては、図６（ｂ）に示すように、第１ガイド部材１４のみを使用状態にして、適正な刈り払い作業を行うことができる。そして、このような第１ガイド部材１４及び第２ガイド部材１５の状態選択を、工具を用いること無く、レバー部材２０の回転のみで行うことができるので、状況に応じた状態選択を迅速且つ簡易に行うことができる。 Further, in a situation where the second guide member 15 is an obstacle when cutting grass near the wall, as shown in FIG. 6B, only the first guide member 14 is used and appropriate. Can perform reaping work. Since the state selection of the first guide member 14 and the second guide member 15 can be performed only by rotating the lever member 20 without using a tool, the state selection according to the situation can be performed quickly and easily. Can be done.
　前述した説明では、刈り払い作業について説明したが、ヘッジトリマのような刈り込み作業を行う場合にも、同様に、ガイド部材（第１ガイド部材１４又は第２ガイド部材１５）の使用状態にして、壁際などの刈り込み作業を行うことができ、ガイド部材（第１ガイド部材１４又は第２ガイド部材１５）を収納状態にして、通常の刈り込み作業を少ない作業負荷で行うことができる。 In the above description, the cutting work has been described, but when the cutting work such as the hedge trimmer is performed, the guide member (first guide member 14 or the second guide member 15) is similarly used and the wall is near the wall. The cutting work such as the above can be performed, and the guide member (first guide member 14 or the second guide member 15) can be stored so that the normal cutting work can be performed with a small workload.
　以上、本発明の実施の形態について図面を参照して詳述してきたが、具体的な構成はこれらの実施の形態に限られるものではなく、本発明の要旨を逸脱しない範囲の設計の変更等があっても本発明に含まれる。また、上述の各実施の形態は、その目的及び構成等に特に矛盾や問題がない限り、互いの技術を流用して組み合わせることが可能である。 Although the embodiments of the present invention have been described in detail with reference to the drawings, the specific configuration is not limited to these embodiments, and the design changes and the like within a range not deviating from the gist of the present invention Even if there is, it is included in the present invention. Further, each of the above-described embodiments can be combined by diverting the technologies of each other as long as there is no particular contradiction or problem in the purpose and configuration thereof.
１：往復動刈刃式刈り払い機（刈り払い機），２：操作桿，３：操作ハンドル，４：ハウジング，４Ａ：リアハンドル，５：バッテリー，
１０：往復動刈刃装置，１１：伝動ケース，１１Ａ：操作桿取り付け部，
１１Ｂ：角度調整機構，１１Ｃ：調整ハンドル，
１２：支持部材，１３：往復動刈刃（刈刃），
１４：第１ガイド部材，１４Ａ：刃部，１４Ｂ：取り付け部，
１４Ｃ：孔，１４Ｄ，１４Ｅ：係合凹部，
１５：第２ガイド部材，１５Ａ：ガイド部，１５Ｂ：取り付け部，
１５Ｃ：孔，１５Ｄ，１５Ｅ：係合凹部，
１６，２２：ボルト，１７，２１：スペーサ，
１８，２３：ワッシャ，１９，２４：皿バネ，
２０：レバー部材，２０Ａ：レバー部，２０Ｂ：取り付け部，
２０Ｃ：孔，２０Ｄ：係合凸部，３０：調整ネジ，３１：固定ナット， 1: Reciprocating blade type reaper (reaper), 2: Operation stick, 3: Operation handle, 4: Housing, 4A: Rear handle, 5: Battery,
10: Reciprocating cutting blade device, 11: Transmission case, 11A: Operating rod mounting part,
11B: Angle adjustment mechanism, 11C: Adjustment handle,
12: Support member, 13: Reciprocating cutting blade (cutting blade),
14: 1st guide member, 14A: blade part, 14B: mounting part,
14C: hole, 14D, 14E: engaging recess,
15: 2nd guide member, 15A: guide part, 15B: mounting part,
15C: hole, 15D, 15E: engaging recess,
16, 22: Bolt, 17, 21: Spacer,
18, 23: Washer, 19, 24: Belleville spring,
20: Lever member, 20A: Lever part, 20B: Mounting part,
20C: hole, 20D: engaging convex part, 30: adjusting screw, 31: fixing nut,

Claims (7)

  1. 　厚さ方向に互いに重ねた状態で配備される一対の往復動刈刃と、
    　前記往復動刈刃を長手方向に往復移動自在に支持する支持部材とを備え、
    　前記支持部材の端部には、前記往復動刈刃の突出方向に突出した状態で使用するガイド部材が設けられ、
    　前記ガイド部材は、使用状態と前記往復動刈刃の突出方向に突出しない収納状態を選択可能に取り付けられていることを特徴とする往復動刈刃装置。     A pair of reciprocating cutting blades that are deployed so that they overlap each other in the thickness direction,
    A support member for supporting the reciprocating cutting blade so as to be reciprocally movable in the longitudinal direction is provided.
    At the end of the support member, a guide member used in a state of projecting in the projecting direction of the reciprocating cutting blade is provided.
    The reciprocating cutting blade device is characterized in that the guide member is attached so as to be selectable between a used state and a stored state in which the reciprocating cutting blade does not protrude in the protruding direction.
  2. 　前記ガイド部材の前記往復動刈刃に対向する側部には刃部が設けられていることを特徴とする請求項１記載の往復動刈刃装置。 The reciprocating moving cutting blade device according to claim 1, wherein a blade portion is provided on a side portion of the guide member facing the reciprocating moving cutting blade.
  3. 　前記ガイド部材は、前記支持部材に回転自在に軸支されており、前記ガイド部材を前記使用状態又は前記収納状態で固定するレバー部材が、前記ガイド部材に隣接して、前記支持部材に軸支されていることを特徴とする請求項１又は２記載の往復動刈刃装置。 The guide member is rotatably supported by the support member, and a lever member that fixes the guide member in the used state or the stored state is adjacent to the guide member and is pivotally supported by the support member. The reciprocating moving cutting blade device according to claim 1 or 2, wherein the reciprocating cutting blade device is provided.
  4. 　前記ガイド部材は、前記支持部材の左右両端部に設けられていることを特徴とする請求項１～３のいずれか1項記載の往復動刈刃装置。 The reciprocating moving cutting blade device according to any one of claims 1 to 3, wherein the guide member is provided at both left and right ends of the support member.
  5. 　前記ガイド部材を第１ガイド部材として、
    　前記支持部材の端部には、前記第１ガイド部材の先端より突出する第２ガイド部材が設けられ、
    　前記第２ガイド部材は、前記第１ガイド部材と同軸に軸支され、前記往復動刈刃の突出方向に突出する使用状態と前記往復動刈刃の突出方向に突出しない収納状態を選択可能に取り付けられていることを特徴とする請求項１～４のいずれか１項記載の往復動刈刃装置。     Using the guide member as the first guide member,
    A second guide member protruding from the tip of the first guide member is provided at the end of the support member.
    The second guide member is coaxially supported with the first guide member, and it is possible to select a used state in which the reciprocating cutting blade protrudes in the protruding direction and a stored state in which the reciprocating cutting blade does not protrude in the protruding direction. The reciprocating moving cutting blade device according to any one of claims 1 to 4, wherein the reciprocating cutting blade device is attached.
  6. 　前記第２ガイド部材は、湾曲自在であり、単独で前記収納状態にすることができることを特徴とする請求項５記載の往復動刈刃装置。 The reciprocating moving cutting blade device according to claim 5, wherein the second guide member is bendable and can be independently put into the stored state.
  7. 　請求項１～６のいずれか１項に記載の往復動刈刃装置を操作桿の先端にＴ字状に装備した刈り払い機。 A mowing machine equipped with the reciprocating moving cutting blade device according to any one of claims 1 to 6 in a T shape at the tip of the operating rod.
PCT/JP2020/020759 2019-08-08 2020-05-26 Reciprocating cutting blade device and brush cutter WO2021024580A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019-146472 2019-08-08
JP2019146472A JP7376276B2 (en) 2019-08-08 2019-08-08 Reciprocating mowing blade device and brush cutter

Publications (1)

Publication Number Publication Date
WO2021024580A1 true WO2021024580A1 (en) 2021-02-11

Family

ID=74503414

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2020/020759 WO2021024580A1 (en) 2019-08-08 2020-05-26 Reciprocating cutting blade device and brush cutter

Country Status (2)

Country Link
JP (1) JP7376276B2 (en)
WO (1) WO2021024580A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5110274U (en) * 1974-07-09 1976-01-26
JPS52107234U (en) * 1976-02-10 1977-08-15
DE202004011384U1 (en) * 2004-07-20 2004-10-21 Yang, Chung-Jeng, Da Li Hand-advanced lawn trimmer has top-mounted electric drill driving cutter blades via chuck and spindle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5110274U (en) * 1974-07-09 1976-01-26
JPS52107234U (en) * 1976-02-10 1977-08-15
DE202004011384U1 (en) * 2004-07-20 2004-10-21 Yang, Chung-Jeng, Da Li Hand-advanced lawn trimmer has top-mounted electric drill driving cutter blades via chuck and spindle

Also Published As

Publication number Publication date
JP2021023265A (en) 2021-02-22
JP7376276B2 (en) 2023-11-08

Similar Documents

Publication Publication Date Title
JP7253471B2 (en) Reciprocating cutting blade device and hand-held work machine
JP7261734B2 (en) garden trimmer
CA2938777C (en) Chain saw
EP3076778B1 (en) Dual direction cutting device
JP2021180645A (en) Horticulture trimmer
JP7253461B2 (en) Reciprocating cutting blade device and hand-held work machine
WO2021024580A1 (en) Reciprocating cutting blade device and brush cutter
JP7253460B2 (en) Reciprocating cutting blade device and hand-held work machine
JP4813267B2 (en) Electric mower
JP2015116131A (en) Pruning machine
JP4974480B2 (en) Trimming machine
JP2008259513A (en) Trimming machine
JP4657094B2 (en) Trimming machine
JP7284005B2 (en) Reciprocating cutting blade device
JP2017046638A (en) Reciprocating motion work machine
JP7284006B2 (en) Reciprocating mowing blade type hand-held work machine
EP3379917B1 (en) Collection assembly for a power device
JP4469224B2 (en) Hedge trimmer
CN113455172B (en) Ecological agriculture and forestry are with high-efficient weeding device
JP2004008069A (en) Eccentric cam structure in power tool such as hedge trimer or the like
JP5035827B2 (en) Mower
JP6796473B2 (en) Pruning machine
EP1106044B1 (en) Portable handeled tool for use in farming and gardening works provided with an improved handle
EP3466247A1 (en) Hand-held working machine
KR20130058028A (en) A double-edged revolution is possible the brush cutter knife and knife operating method and knife operating device

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20850389

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20850389

Country of ref document: EP

Kind code of ref document: A1