JP2010201882A - Portable cutter - Google Patents

Portable cutter Download PDF

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JP2010201882A
JP2010201882A JP2009052605A JP2009052605A JP2010201882A JP 2010201882 A JP2010201882 A JP 2010201882A JP 2009052605 A JP2009052605 A JP 2009052605A JP 2009052605 A JP2009052605 A JP 2009052605A JP 2010201882 A JP2010201882 A JP 2010201882A
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surface plate
cutting machine
stopper
saw blade
angle
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JP5439868B2 (en
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Kazunobu Yoshimura
和信 吉村
Tomonori Ichiba
朋典 一場
Takuma Nonaka
琢磨 野中
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Max Co Ltd
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Max Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable cutter that is small and well balanced in weight and that has easy handleability, by increasing concentration in the arrangement of a battery, an electric motor 2, and a saw blade 11. <P>SOLUTION: A surface plate 6 is arranged in the lower part of a cutter body 3 equipped with a saw blade 1. In the surface plate 6 and the saw blade 1, by tightening/relaxing an adjusting means 23 relative to rotary shafts 20, 21 and an angular adjusting link 18 provided in the surface plate 6, the angle of the saw blade 1 for the surface plate 6 is made adjustable so as to be rotated at above or below a prescribed angle inclusive around the rotary shaft. Also, in the surface plate 6, in the portable cutter equipped with a stopper 24 that comes in contact with the cutter body 3 when the angle of the saw blade 1 becomes a prescribed angle, the stopper 24 is disposed on the opposite side from the angular adjusting link 18 of the surface plate 6, and is made movable between a position in contact with the cutter body 3 and a position not in contact therewith. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

本発明は携帯用切断機に関する。   The present invention relates to a portable cutting machine.

一般に、この種の携帯用切断機は通常は被切断材の小口がその表面に対して直角になるように切断する場合が多い。しかし、例えば２本の枠材を直角に結合する場合のように、被切断材の小口がその表面に対して直角でなく、斜め鋭角に切断することが必要な場合がある。そのため、切断角度を調整する機構が設けられている（特許文献１参照）。この機構は、切断機本体と定盤とをのこ刃の切断方向と平行に設けられた前後２箇所の同軸の回動軸を介して連結し、上記定盤の一端側に設けた斜め切断用の角度調整リンクに対し、上記切断機本体に設けられた調整ボルトを手で締め緩めすることにより、上記定盤に対するのこ刃を上記回動軸を中心にして回動して所定の角度にできるようになっている。角度調整リンクと調整ボルトは定盤の前部に配置されている。   In general, this type of portable cutting machine usually cuts so that the edge of the material to be cut is perpendicular to the surface thereof. However, there are cases where it is necessary to cut the edge of the material to be cut not at a right angle to the surface but at an oblique acute angle, as in the case of joining two frame members at a right angle. Therefore, a mechanism for adjusting the cutting angle is provided (see Patent Document 1). This mechanism connects the main body of the cutting machine and the surface plate via two coaxial rotating shafts provided in front and back in parallel with the cutting direction of the saw blade, and the oblique cutting provided on one end side of the surface plate. By manually tightening and loosening the adjustment bolts provided on the cutting machine body with respect to the angle adjustment link for use, the saw blade with respect to the surface plate is rotated about the rotation axis so that a predetermined angle is obtained. You can do it. The angle adjustment link and the adjustment bolt are arranged at the front part of the surface plate.

ところで、使用頻度が最も高いのは、のこ刃を定盤に対して９０°にして使用する場合なので、９０°を越え又は９０°未満で使用した後に微調整しなくても上記角度が９０°に決まるように、上記定盤にはストッパを設け、上記定盤に対するのこ刃の角度が９０°となったときに切断機本体がストッパに当接するように構成されている（特許文献１、２参照）。定盤に対するのこ刃の角度を９０°未満で使用したいときは、ストッパによるロックを解除して所望の角度にセットし、調整ボルトを締めて固定するように構成されている。   By the way, the frequency of use is the highest when the saw blade is used at 90 ° with respect to the surface plate, so that the angle is 90 even without fine adjustment after using it at 90 ° or less than 90 °. The surface plate is provided with a stopper so that the angle of the saw blade with respect to the surface plate becomes 90 ° so that the main body of the cutter comes into contact with the stopper (Patent Document 1). 2). When the angle of the saw blade with respect to the surface plate is to be used at less than 90 °, the lock by the stopper is released, the desired angle is set, and the adjustment bolt is tightened to be fixed.

以上の構成によれば、のこ刃を定盤に対して直角にして使用するに際し、切断機本体を被切断材上に載置された定盤に対して押し付けるが、このときストッパによるロック時に角度調整リンクに調整ボルトを締め付けた部位も定盤と切断機本体とが固定されているので、切断機本体は、定盤に対して前後２箇所の回動軸と調整ボルトによる締め付け部位の３点で支持されている。   According to the above configuration, when the saw blade is used at a right angle to the surface plate, the cutting machine body is pressed against the surface plate placed on the material to be cut. Since the surface plate and the cutting machine main body are also fixed to the portion where the adjustment bolt is tightened to the angle adjustment link, the cutting machine main body has three rotation shafts and two bolts to be tightened by the adjusting bolt with respect to the surface plate. Supported by a point.

特開２００６−１１５１号公報JP 2006-1151 A

しかしながら、切断機本体を定盤に対して前後２箇所の回動軸と前部の調整ボルト締め付け部位の計３点で支持する構成では、前部が２点で支持されるのに対し、後部は回動軸１点で支持されているだけであるから、切断にあたり定盤を被切断材の表面に載置して切断機本体の上部に設けられたハンドルを把持して切断機本体を定盤に向けて強く押し付けたとき、後部のうち支持されていない側は定盤側に沈み込みやすい。このように切断機本体の姿勢が不安定になると、被切断材を真直に切断しにくいという問題がある。   However, in the configuration in which the cutting machine body is supported by a total of three points including the front and rear rotating shafts and the adjustment bolt tightening part of the front part with respect to the surface plate, the front part is supported at two points, while the rear part Is only supported by a single pivot, so that when cutting, the surface plate is placed on the surface of the material to be cut and the handle provided at the top of the cutting machine body is held to define the cutting machine body. When pressed strongly toward the board, the unsupported side of the rear part tends to sink into the surface plate side. When the posture of the cutting machine main body becomes unstable in this way, there is a problem that it is difficult to cut the material to be cut straight.

本発明は上記問題点を解消し、定盤に対して切断機本体を安定に支持することができ、操作性を向上させることができる携帯切断機を提供することをその課題とする。   It is an object of the present invention to provide a portable cutting machine that solves the above-described problems, can stably support the cutting machine body with respect to the surface plate, and can improve operability.

前記課題を解決するため、請求項１に係る発明は、のこ刃を設けた切断機本体の下部に被切断材上に載置される定盤を配置し、切断機本体と定盤とはのこ刃の切断方向と平行に設けられた回動軸を介して連結し、上記定盤の一端側に設けた角度調整リンクに対し、上記切断機本体に設けられた調整手段を締め緩めすることにより、上記定盤に対するのこ刃の角度を上記回動軸を中心にして所定の角度以上又は以下に回動するように調整可能とするとともに、上記定盤には、上記定盤に対するのこ刃の角度が所定の角度となったときに切断機本体に当接するストッパを設けた携帯用切断機において、上記ストッパを、上記定盤の上記角度調整リンクとは反対側に配置するとともに、上記切断機本体と当接する位置と当接しない位置とに移動可能に設けたことを特徴とする。   In order to solve the above-mentioned problem, the invention according to claim 1 is arranged such that a surface plate placed on a material to be cut is arranged at a lower portion of a cutting machine body provided with a saw blade, and the cutting machine body and the surface plate are It is connected via a rotating shaft provided parallel to the cutting direction of the saw blade, and the adjusting means provided on the cutting machine body is tightened and loosened with respect to the angle adjusting link provided on one end side of the surface plate. Thus, the angle of the saw blade with respect to the surface plate can be adjusted so as to rotate more than or less than a predetermined angle around the rotation axis. In the portable cutting machine provided with a stopper that contacts the cutting machine body when the angle of the blade becomes a predetermined angle, the stopper is disposed on the opposite side of the angle adjustment link of the surface plate, Can move between a position that contacts the cutting machine body and a position that does not contact Characterized by providing.

請求項２に係る発明は、請求項１において、上記ストッパは、上記切断機本体と当接する位置に移動するように付勢されていることを特徴とする。   According to a second aspect of the present invention, in the first aspect, the stopper is biased so as to move to a position where it comes into contact with the cutting machine body.

請求項１に係る発明によれば、定盤に対するのこ刃の角度が所定の角度となったときに切断機本体に当接するストッパを、上記定盤の一端側に配置された角度調整リンクとは反対側に配置したから、のこ刃を所定の角度で切断するときは、切断機本体を定盤のストッパとを当接させるとともに、調整手段を角度調整リンクに対して締め付け固定して使用する。この場合、切断機本体は定盤に対し、前後２点の回動軸による２点と前部の調整手段による締め付け固定部と後部のストッパへの当接部とによる前後各２点の4点で支持されることになる。したがって、切断時に切断機本体を常磐に対して押し付けても、切断機本体が傾くことがなく、切断機本体の姿勢が正しい状態で安定する。切断機本体が正しく安定するので、のこ刃が曲がることがなく、真直に切断することができ、したがって、操作性が向上する。   According to the first aspect of the present invention, the stopper that comes into contact with the cutting machine main body when the angle of the saw blade with respect to the surface plate becomes a predetermined angle, and the angle adjustment link disposed on one end side of the surface plate, Since the blade is placed on the opposite side, when cutting the saw blade at a predetermined angle, the cutting machine body is brought into contact with the stopper of the surface plate and the adjusting means is tightened and fixed to the angle adjusting link. To do. In this case, the cutting machine main body has four points on the surface plate, two points on the front and rear, two points on the front and rear rotating shafts, two points on the front and rear by the fastening part by the front adjustment means and the contact part to the stopper on the rear part. Will be supported. Therefore, even if the cutting machine main body is pressed against the regular at the time of cutting, the cutting machine main body does not tilt, and the posture of the cutting machine main body is stabilized in a correct state. Since the main body of the cutting machine is correctly stabilized, the saw blade is not bent and can be cut straight, so that the operability is improved.

請求項２に係る発明によれば、ストッパは、上記切断機本体と当接する位置に移動するように付勢されているから、切断機本体と当接しない位置に移動させることにより、定盤に対してのこ刃を９０°を越えるように傾けて斜め切断することができる。そして、のこ刃と定盤とを傾斜させた後に、元の所定角度に設定するときに、ストッパは自動的に元の位置に復帰移動し、特別の操作をする必要がないから、非常に操作性がよい。   According to the second aspect of the invention, the stopper is biased so as to move to a position where it comes into contact with the cutting machine main body. On the other hand, the saw blade can be inclined and tilted so as to exceed 90 °. And after tilting the saw blade and the surface plate, when setting to the original predetermined angle, the stopper automatically returns to the original position, and there is no need for special operation. Good operability.

本発明に係る携帯用切断機の側面図Side view of portable cutting machine according to the present invention 図１のＡ−Ａ線上の断面図Sectional drawing on the AA line of FIG. 上記携帯用切断機の正面図Front view of the portable cutting machine 上記携帯用切断機の平面図Top view of the portable cutting machine 図４のＹ−Ｙ線上の断面図Sectional view on the YY line of FIG. 図４のＺ−Ｚ線上の断面図Sectional drawing on the ZZ line of FIG. 逆傾斜切断時のストッパ部分の状態を示す拡大図Enlarged view showing the state of the stopper part during reverse tilt cutting 逆傾斜切断時のストッパ部分の状態を別の角度で示す断面図Sectional drawing which shows the state of the stopper part at the time of reverse inclination cutting at another angle （ａ）（ｂ）は順傾斜と逆傾斜の切断状態の断面図(A) (b) is sectional drawing of the cutting state of forward inclination and reverse inclination

図１〜図３において符号Ａは携帯用切断機を示す。この切断機は、のこ刃１とこののこ刃１を駆動する電動モータ２とを並設した切断機本体３の上部に操作用ハンドル４をのこ刃１の切断方向と平行に、つまり前後方向に配置し、上記ハンドル４の後端の下部に電動モータ駆動用のバッテリパック５を着脱自在に設けるとともに、切断機本体３の下部には被切断材上に載置される定盤６を設けたものである。   In FIG. 1 to FIG. 3, the symbol A indicates a portable cutting machine. In this cutting machine, an operation handle 4 is placed in parallel with the cutting direction of the saw blade 1 on the upper part of a cutting machine main body 3 in which a saw blade 1 and an electric motor 2 for driving the saw blade 1 are arranged in parallel. A battery pack 5 for driving the electric motor is detachably provided at the lower part of the rear end of the handle 4 in the front-rear direction, and a surface plate 6 placed on the material to be cut at the lower part of the cutting machine body 3. Is provided.

電動モータ２の出力軸７には中間軸８の一端に固定した第１減速歯車１０が噛合し、さらに中間軸８の他端に固定した第２減速歯車１１が最終軸９に固定された第３減速歯車１２に噛合し、最終軸９にはのこ刃１が固定されている。これにより、電動モータ２が回転すると、その回転力は第１、第２、第３減速歯車１０、１１、１２を介して最終軸９に伝達され、のこ刃１が回転する。   A first reduction gear 10 fixed to one end of the intermediate shaft 8 meshes with the output shaft 7 of the electric motor 2, and a second reduction gear 11 fixed to the other end of the intermediate shaft 8 is fixed to the final shaft 9. 3 is engaged with the reduction gear 12 and the saw blade 1 is fixed to the final shaft 9. Thereby, when the electric motor 2 rotates, the rotational force is transmitted to the final shaft 9 via the first, second, and third reduction gears 10, 11, and 12, and the saw blade 1 rotates.

なお、電動モータ２はモータハウジング１３に内装され、のこ刃１のほとんどは安全確保用のソーカバー１４によって覆われている。電動モータ２の出力軸７には電動モータ冷却用のファン１５も取付けられている。   The electric motor 2 is housed in a motor housing 13, and most of the saw blade 1 is covered with a saw cover 14 for ensuring safety. An electric motor cooling fan 15 is also attached to the output shaft 7 of the electric motor 2.

また、定盤６は切断機本体３の下部に設けられた金属製の板状部材で、その一部には開口部１６が貫通形成され、開口部１６の下方にはのこ刃１の一部が露出し、円弧状のロアガード１７によって覆われている。このロアガード１７はのこ刃１の回転軸を中心に後方から上方に回動可能に装着されている。   The surface plate 6 is a metal plate-like member provided in the lower part of the cutting machine body 3, and an opening 16 is formed through a part of the platen 6. The part is exposed and covered with an arc-shaped lower guard 17. The lower guard 17 is mounted so as to be pivotable from the rear to the top around the rotation axis of the saw blade 1.

さらに、操作用ハンドル４は、切断機本体３の上部に配置され、その前部は切断機本体３の前部のややモータハウジング１３側に一体的に設けられ、その後部は屈曲し、屈曲端部は切断機本体３の後面に一体的に設けられている。屈曲部４ａの下部と定盤６との間には、公知の着脱機構を備えたバッテリパック５の装着部が形成され、バッテリパック５は装着部の後方から差し込んで装着し、ロックを解除した後に引き抜いて外すことができるようになっている。   Further, the operation handle 4 is disposed at the upper part of the cutting machine body 3, the front part thereof is integrally provided on the motor housing 13 side of the front part of the cutting machine body 3, the rear part is bent, and the bent end is bent. The portion is integrally provided on the rear surface of the cutting machine body 3. A mounting portion for the battery pack 5 having a known attachment / detachment mechanism is formed between the lower portion of the bent portion 4a and the surface plate 6, and the battery pack 5 is inserted and mounted from the rear of the mounting portion to release the lock. It can be pulled out and removed later.

次に、上記携帯用切断機には、被切断材の小口がその表面に対して直角でなく、例えば図９（ａ）（ｂ）のように９０°を基準として鋭角又は鈍角に切断できるようにするため、切断角度を調整する斜め切断調整機構が設けられている。この機構は、切断機本体３と定盤６とをのこ刃１の切断方向と平行に設けられた前後２箇所の同軸の回動軸２０、２１（図１、図４参照）を介して連結し、図３に示されるように、上記定盤６の一端側に設けた角度調整リンク１８に対し、上記切断機本体３に設けられたレバー２２付きの調整ボルト２３を手で回動して締め緩めすることにより、上記定盤６に対するのこ刃１を上記回動軸２０、２１を中心にして回動して所定の角度（９０°）に設定できるようになっている。   Next, in the portable cutting machine, the edge of the material to be cut is not perpendicular to the surface, but can be cut at an acute angle or an obtuse angle with reference to 90 ° as shown in FIGS. 9A and 9B, for example. Therefore, an oblique cutting adjusting mechanism for adjusting the cutting angle is provided. This mechanism is connected to the cutting machine main body 3 and the surface plate 6 via two front and rear coaxial rotating shafts 20 and 21 (see FIGS. 1 and 4) provided in parallel with the cutting direction of the saw blade 1. As shown in FIG. 3, the adjusting bolt 23 with the lever 22 provided on the cutting machine body 3 is manually rotated with respect to the angle adjusting link 18 provided on one end side of the surface plate 6. By tightening and loosening, the saw blade 1 with respect to the surface plate 6 can be rotated about the rotation shafts 20 and 21 and set to a predetermined angle (90 °).

なお、角度調整リンク１８において、定盤６に対するのこ刃１の角度は、９０°を基準（０°）として+４５°〜−１５°の角度まで調整できるようになっている。＋は順傾斜、−は逆傾斜を表わす。   In the angle adjustment link 18, the angle of the saw blade 1 with respect to the surface plate 6 can be adjusted from + 45 ° to −15 ° with 90 ° as a reference (0 °). + Represents forward tilt and-represents reverse tilt.

また、角度調整リンク１８と調整ボルト２３は定盤６の前部で、前部回動軸２０の内側に配置されている。   In addition, the angle adjustment link 18 and the adjustment bolt 23 are disposed inside the front rotation shaft 20 at the front portion of the surface plate 6.

ところで、最も使用頻度が高いのは、定盤６とのこ刃１とを直角で使用する場合である。したがって、直角になったときに調整ボルト２３を締め込んで切断機本体３に定盤６を固定してもよいが、角度調整リンク１８上で調整ボルト２３を手作業で調整して角度を正確に直角に設定するのは容易ではない。   By the way, the use frequency is highest when the surface plate 6 and the saw blade 1 are used at right angles. Accordingly, the adjustment bolt 23 may be tightened to fix the surface plate 6 to the cutting machine body 3 when the angle becomes right, but the adjustment bolt 23 is manually adjusted on the angle adjustment link 18 to accurately adjust the angle. It is not easy to set a right angle to.

そこで、上記携帯用切断機には、のこ刃１と定盤６とが正確に直角をなした位置で互いに当接可能なストッパ２４が設けられている。すなわち、このストッパ２４は図４〜図６に示されるように、上記定盤６の後部回動軸２１の内側（バッテリパック側）に配置されている。ストッパ２４は軸体２５の中央に設けたブロック２６にねじ込まれたネジ軸３１によって構成されている。定盤６には軸体２５を移動可能に支持する支持部２８が固定されている。ストッパ２４は上記支持部２８に定盤６と平行に前後方向に移動可能に設けられている。支持部２８にはストッパ付き軸体２５を常時外側に移動するように付勢するバネ３０が設けられている。軸体２５の外側の端部には操作部２５ａが形成され、この操作部２５ａを押すことによりストッパ２４が内側に移動するようになっている。   Therefore, the portable cutting machine is provided with a stopper 24 that can come into contact with each other at a position where the saw blade 1 and the surface plate 6 are at right angles. That is, as shown in FIGS. 4 to 6, the stopper 24 is disposed on the inner side (battery pack side) of the rear rotating shaft 21 of the surface plate 6. The stopper 24 is constituted by a screw shaft 31 screwed into a block 26 provided in the center of the shaft body 25. A support portion 28 that supports the shaft body 25 so as to be movable is fixed to the surface plate 6. The stopper 24 is provided on the support portion 28 so as to be movable in the front-rear direction in parallel with the surface plate 6. The support portion 28 is provided with a spring 30 that urges the shaft body 25 with a stopper to always move outward. An operation portion 25a is formed at an outer end portion of the shaft body 25, and the stopper 24 moves inward by pushing the operation portion 25a.

なお、ストッパ２４はネジ軸３１の上端に形成されている。ネジ軸３１はブロック２６に上下に貫通形成されたネジ穴３２に螺合し、ネジ軸３１の下部は定盤６に形成された調整穴３３に臨んでいる。このため、ネジ軸３１の下端頭部をドライバで回して螺進させることにより、ストッパ２４の上下位置を微調整することができる。   The stopper 24 is formed on the upper end of the screw shaft 31. The screw shaft 31 is screwed into a screw hole 32 formed through the block 26 in the vertical direction, and the lower portion of the screw shaft 31 faces an adjustment hole 33 formed in the surface plate 6. For this reason, the upper and lower positions of the stopper 24 can be finely adjusted by rotating the lower end head of the screw shaft 31 with a screwdriver.

切断機本体３の後部にはアーム３４が延出形成され、アーム３４の先端には、上記バネ３０に付勢された位置にあるストッパ２４の上部に当接可能な突き当て部３５が形成されている。突き当て部３５の一側部には、突き当て部３５の下面より下方に突出する係合片３６が形成されている。   An arm 34 extends and is formed at the rear portion of the cutting machine main body 3, and an abutting portion 35 that can abut on the upper portion of the stopper 24 at a position biased by the spring 30 is formed at the tip of the arm 34. ing. An engaging piece 36 that protrudes downward from the lower surface of the abutting portion 35 is formed on one side of the abutting portion 35.

したがって、通常はストッパ２４は、図５に示されるように、切断機本体３の突き当て部３５に当接する位置にあるが、操作部２５ａをバネ３０に抗して押圧すると、図７に示されるように、ストッパ２４の位置は切断機本体３の突き当て部３５とは当接しない位置に移動させることができる。   Therefore, normally, the stopper 24 is in a position where it abuts against the abutting portion 35 of the cutting machine body 3 as shown in FIG. 5, but when the operating portion 25a is pressed against the spring 30, it is shown in FIG. As described above, the position of the stopper 24 can be moved to a position where it does not come into contact with the abutting portion 35 of the cutting machine body 3.

上記構成によれば、のこ刃１を定盤６に対して９０°に設定するときは、レバー２２により調整ボルト２３を緩め、図６のように突き当て部３５をストッパ２４に当接させ、その位置で調整ボルト２３を締め付けて固定すればよい。突き当て部３５をストッパ２４に当接させたとき、調整リンク１８の目盛りを見てのこ刃１が定盤６に対して９０°になっていないときは、図６の調整穴３３から挿入したドライバでネジ軸３１を回してその上端のストッパ２４の高さ位置を微調整すればよい。   According to the above configuration, when the saw blade 1 is set to 90 ° with respect to the surface plate 6, the adjustment bolt 23 is loosened by the lever 22 and the abutting portion 35 is brought into contact with the stopper 24 as shown in FIG. The adjustment bolt 23 may be tightened and fixed at that position. When the abutting portion 35 is brought into contact with the stopper 24, when the saw blade 1 is not 90 ° with respect to the surface plate 6 when looking at the scale of the adjustment link 18, it is inserted through the adjustment hole 33 of FIG. The screw shaft 31 may be turned with a screwdriver to finely adjust the height position of the stopper 24 at the upper end.

また、のこ刃１を定盤６に対して９０°よりも小さい角度に設定して被切断材を順傾斜状態に切断するときは、ストッパ２４を動かす必要はない。これに対し、のこ刃１を定盤６に対して９０°よりも大きい逆傾斜に設定するときは、図７、図８に示されるように、ストッパ２４の操作部２５ａをバネ３０に抗して押圧し、ストッパ２４の位置を切断機本体３の突き当て部３５とは当接しない位置に移動させる。これにより、突き当て部３５はストッパ２４よりも低い位置に移動可能となるから、逆傾斜の設定が可能となるから、調整ボルト２３を締め込んで所望の角度に固定すればよい。このとき、突き当て部３５の側方に形成された係合片３６がストッパ２４のブロック２６の側面に係合している。   Further, when the saw blade 1 is set at an angle smaller than 90 ° with respect to the surface plate 6 and the material to be cut is cut into the forward inclined state, it is not necessary to move the stopper 24. On the other hand, when the saw blade 1 is set to have a reverse inclination greater than 90 ° with respect to the surface plate 6, the operation portion 25a of the stopper 24 is resisted against the spring 30 as shown in FIGS. Then, the stopper 24 is moved to a position where it does not come into contact with the abutting portion 35 of the cutting machine body 3. As a result, the abutting portion 35 can be moved to a position lower than the stopper 24, so that the reverse inclination can be set. Therefore, the adjustment bolt 23 may be tightened and fixed at a desired angle. At this time, the engaging piece 36 formed on the side of the abutting portion 35 is engaged with the side surface of the block 26 of the stopper 24.

逆傾斜状態からもとの９０°の状態に戻す時は、図１に示されるように、調整ボルト２３を緩めて定盤６の角度を戻せばよい。このとき、定盤６を９０°以上に回動させることにより、突き当て部３５はストッパ２４との係合位置から離反するから、ストッパ２４はバネ３０のバネ力により図５及び図６に示す初期位置に復帰する。ストッパ２４が初期位置に復帰した後に定盤６を回動させた位置から戻してやると、その突き当て部３５はストッパ２４に突き当たって当接するから、この位置で自動的に定盤６はのこ刃１に対して９０°に設定される。   When returning from the reverse inclined state to the original 90 ° state, as shown in FIG. 1, the adjustment bolt 23 is loosened to return the angle of the surface plate 6. At this time, when the surface plate 6 is rotated by 90 ° or more, the abutting portion 35 is separated from the engagement position with the stopper 24, and the stopper 24 is shown in FIGS. 5 and 6 by the spring force of the spring 30. Return to the initial position. If the surface plate 6 is returned from the rotated position after the stopper 24 returns to the initial position, the abutting portion 35 abuts against and comes into contact with the stopper 24, so that the surface plate 6 is automatically moved at this position. It is set to 90 ° with respect to the blade 1.

なお、突き当て部３５が離反するのは、係合片３６であり、係合片３６が離反したときは突き当て部３５はそれよりも上方に移動しているから、バネ力によりストッパ２４が戻っても、ストッパ２４が突き当て部３５に衝突することは有効に防止される。   It is to be noted that the abutting portion 35 is separated from the engaging piece 36. When the engaging piece 36 is separated, the abutting portion 35 is moved upward, so that the stopper 24 is moved by the spring force. Even if it returns, it is effectively prevented that the stopper 24 collides with the abutting portion 35.

上述のように、のこ刃１を定盤６に対して９０°に設定するときは、調整ボルト２３を緩め、突き当て部３５をストッパ２４に当接させ、その位置で調整ボルト２３を締め付けて固定すればよい。   As described above, when the saw blade 1 is set to 90 ° with respect to the surface plate 6, the adjustment bolt 23 is loosened, the abutting portion 35 is brought into contact with the stopper 24, and the adjustment bolt 23 is tightened at that position. And fix it.

上記構成によれば、のこ刃１と定盤６とを逆傾斜状態にした後に、元の９０°に設定するときに、ストッパ２４は自動的に元の位置に復帰移動し、特別の操作をする必要がないから、非常に操作性がよい。   According to the above configuration, when the saw blade 1 and the surface plate 6 are set in the reverse inclined state and then set to the original 90 °, the stopper 24 automatically returns to the original position to perform a special operation. Because it is not necessary to do this, the operability is very good.

また、最も使用頻度の高い９０°設定で切断するときは、切断機本体３の突き当て部３５と定盤６のストッパ２４とを当接させるとともに、調整ボルト２３を角度調整リンク１８に対して締め付け固定してから使用する。この場合、切断機本体３は定盤６に対し、図３〜図５に示されるように、前後２点の回動軸２０、２１による２点ａ、ｂと前部の調整ボルト２３と後部のストッパ２４よる２点ｃ、ｄの前後各２点の計４点で支持されることになる。したがって、切断時に切断機本体３を被切断材に対して押し付けても、切断機本体３が傾くことがなく、切断機本体３の姿勢が正しい状態で安定する。切断機本体３が正しく安定するので、のこ刃１が曲がることがなく、真直に切断することができるから、操作性が向上する。   When cutting at a 90 ° setting that is most frequently used, the abutting portion 35 of the cutting machine body 3 and the stopper 24 of the surface plate 6 are brought into contact with each other, and the adjustment bolt 23 is attached to the angle adjustment link 18. Use after tightening and fixing. In this case, as shown in FIGS. 3 to 5, the cutting machine main body 3 has two points a and b, front adjustment bolts 23, and a rear portion of the front and rear rotary shafts 20 and 21, as shown in FIGS. 3 to 5. The two points c and d by the stopper 24 are supported at a total of four points. Therefore, even if the cutting machine body 3 is pressed against the material to be cut at the time of cutting, the cutting machine body 3 does not tilt, and the posture of the cutting machine body 3 is stabilized in a correct state. Since the cutting machine main body 3 is correctly stabilized, the saw blade 1 is not bent and can be cut straight, so that the operability is improved.

１ のこ刃
３ 切断機本体
６ 定盤
１８ 角度調整リンク
２３ 調整ボルト（調整手段）
２４ ストッパ 1 saw blade 3 cutting machine body 6 surface plate 18 angle adjustment link 23 adjustment bolt (adjustment means)
24 Stopper

Claims (2)

のこ刃を設けた切断機本体の下部に被切断材上に載置される定盤を配置し、切断機本体と定盤とはのこ刃の切断方向と平行に設けられた回動軸を介して連結し、上記定盤の一端側に設けた角度調整リンクに対し、上記切断機本体に設けられた調整手段を締め緩めすることにより、上記定盤に対するのこ刃の角度を上記回動軸を中心にして所定の角度以上又は以下に回動するように調整可能とするとともに、上記定盤には、上記定盤に対するのこ刃の角度が所定の角度となったときに切断機本体に当接するストッパを設けた携帯用切断機において、
上記ストッパを、上記定盤の上記角度調整リンクとは反対側に配置するとともに、上記切断機本体と当接する位置と当接しない位置とに移動可能に設けた
ことを特徴とする携帯用切断機。 A surface plate placed on the material to be cut is arranged at the lower part of the cutting machine main body provided with the saw blade, and the cutting machine main body and the surface plate are rotational axes provided in parallel with the cutting direction of the saw blade. The angle of the saw blade with respect to the surface plate is adjusted by tightening and loosening the adjusting means provided on the cutting machine body with respect to the angle adjusting link provided on one end side of the surface plate. The surface plate can be adjusted so as to rotate more than or less than a predetermined angle, and the surface plate includes a cutting machine when the angle of the saw blade with respect to the surface plate becomes a predetermined angle. In a portable cutting machine provided with a stopper that contacts the body,
A portable cutting machine characterized in that the stopper is disposed on the side opposite to the angle adjusting link of the surface plate and is movable between a position where the stopper comes into contact with the cutting machine body and a position where the stopper does not come into contact. . 上記ストッパは、上記切断機本体と当接する位置に移動するように付勢されていることを特徴とする、請求項１に記載の携帯用切断機。   The portable cutting machine according to claim 1, wherein the stopper is biased so as to move to a position in contact with the cutting machine main body.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012176468A (en) * 2011-02-28 2012-09-13 Makita Corp Cutting tool
JP2014231130A (en) * 2013-05-30 2014-12-11 日立工機株式会社 Cordless circular saw
JP2016117150A (en) * 2014-12-18 2016-06-30 株式会社マキタ Processing machine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08290401A (en) * 1995-04-25 1996-11-05 Ryobi Ltd Portable rotary tool
JP2001232515A (en) * 1999-12-16 2001-08-28 Makita Corp Cutting machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08290401A (en) * 1995-04-25 1996-11-05 Ryobi Ltd Portable rotary tool
JP2001232515A (en) * 1999-12-16 2001-08-28 Makita Corp Cutting machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012176468A (en) * 2011-02-28 2012-09-13 Makita Corp Cutting tool
JP2014231130A (en) * 2013-05-30 2014-12-11 日立工機株式会社 Cordless circular saw
JP2016117150A (en) * 2014-12-18 2016-06-30 株式会社マキタ Processing machine

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