JP5149829B2 - Work tools - Google Patents

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JP5149829B2
JP5149829B2 JP2009026357A JP2009026357A JP5149829B2 JP 5149829 B2 JP5149829 B2 JP 5149829B2 JP 2009026357 A JP2009026357 A JP 2009026357A JP 2009026357 A JP2009026357 A JP 2009026357A JP 5149829 B2 JP5149829 B2 JP 5149829B2
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magnets
handle
pivot
work tool
blades
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JP2010178984A (en
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正美 片岡
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株式会社ベツセル福知山
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Description

本発明は、エアニッパー、ハンド式ニッパー、ペンチ、プライヤー、ハサミ、バリカン等の作業工具に関するものである。   The present invention relates to work tools such as air nippers, hand nippers, pliers, pliers, scissors, clippers and the like.

従来、エアニッパーブレード、ハンド式ニッパー、ペンチ、プライヤー、ハサミ、バリカン等の作業工具の開閉を楽に、また使いやすくするために、柄部にスプリングを使用したものがある（例えば、特許文献１参照）。
また、上記スプリングの代わりに同極の磁石を柄部間に対向配置したものもある（例えば、特許文献２〜４参照）。 2. Description of the Related Art Conventionally, in order to make opening and closing of work tools such as air nipper blades, hand nippers, pliers, pliers, scissors, clippers, etc. easier and easier to use, there are those that use a spring for the handle (see, for example, Patent Document 1). ).
In addition, there is one in which magnets having the same polarity are arranged oppositely between the handle portions instead of the springs (see, for example, Patent Documents 2 to 4).

特開平１０−１７９９５２号公報Japanese Patent Application Laid-Open No. 10-179952 特開昭５３−１３０６００号公報JP-A-53-130600 実公昭６０−１９８３号公報Japanese Utility Model Publication No. 60-1983 国際公開番号：ＷＯ２００５／０６０７３２号公報International publication number: WO2005 / 060732

特許文献１のように、柄部間にスプリングを配置したものは、開閉頻度の多いエアニッパーブレードでは、スプリングの金属疲労等により折れが発生し、大きなトラブルを発生させる要因でもあった。また、ブレードの交換時に起こるスプリング紛失も問題であった。
上記スプリングに代えて、特許文献２〜４のように、柄部間に同極の磁石を対向配置したものは、上記スプリングを配置したのもののようなトラブルは解消できるが、上記磁石の反発力のさらなる有効利用を図るという点においては、未だ満足できるものではなかった。即ち、この種の作業工具は、枢軸廻りに僅かとは云うものの摺動スキマがあり、また、枢軸と直交する摺動面間にも摺動スキマがあるため、被切断物を切断する際、ブレードの刃が、前記スキマの範囲内で枢軸の軸線方向に対して相互に離隔する方向にずれようとする傾向がある。このため、ブレードの剪断力は、前記ずれによる損失が発生し、寿命の短縮を招き、ブレードの交換頻度を増加させるという問題があった。特に、前記磁石の取付け仕様精度が劣悪であると、上記傾向が一層助長される欠点があった。 As in Patent Document 1, the one in which the spring is disposed between the handle portions is a factor that causes a major trouble in the air nipper blade that frequently opens and closes due to breakage due to metal fatigue of the spring. Another problem was the loss of the spring that occurred when the blade was replaced.
In place of the spring, as in Patent Documents 2 to 4, troubles such as those in which the spring is arranged can be solved by disposing the same-polarity magnet between the handle parts, but the repulsive force of the magnet It was not yet satisfactory in terms of further effective use of. That is, this type of work tool has a slight sliding clearance around the pivot axis, and also has a sliding clearance between the sliding surfaces orthogonal to the pivot axis. There is a tendency that the blades of the blade tend to be displaced in directions away from each other with respect to the axial direction of the pivot within the range of the clearance. For this reason, the shearing force of the blade causes a loss due to the deviation, which leads to a problem of shortening the life and increasing the replacement frequency of the blade. In particular, if the magnet mounting specification accuracy is inferior, the above tendency is further promoted.

本発明は、従来技術の上記問題点に鑑みて開発されたものであって、その目的とするところは、柄部間に対向配置される同極磁石の反発力をブレードの剪断力の向上及び寿命延長にも有効利用可能とした作業工具を提供することにある。   The present invention has been developed in view of the above-mentioned problems of the prior art, and the object of the present invention is to improve the shearing force of the blade and to repel the repulsive force of the homopolar magnet arranged oppositely between the handle parts. An object of the present invention is to provide a work tool that can be effectively used for extending the service life.

前記目的を達成するために本発明は、先端に作業部、中間に枢着部、後端に柄部を備えた工具杆を２個相対向するように前記枢着部を交叉重合するように枢軸で枢着し、前記柄部間に同極の磁石を対向配置した作業工具において、前記両方の磁石を前記柄部間に、前記作業部のブレードの刃が前記枢軸の軸線方向に対して相互に近付く方向に向くようにずらせて対向配置してあることを特徴としている。
また、前記柄部間に対向配置されている両方の磁石は、相互の対向面中心を前記枢軸の軸線方向にずらせて対向配置してある。 In order to achieve the above object, the present invention cross-polymerizes the pivoting portions so that two tool rods having a working portion at the tip, a pivoting portion at the middle, and a handle at the rear end face each other. In a work tool pivotally attached to the handle and having a magnet of the same polarity disposed between the handle portions, the two magnets are placed between the handle portions, and the blade of the work portion blade is in the axial direction of the turn shaft. It is characterized by being arranged to face each other so as to face each other.
Moreover, both the magnets arranged opposite to each other between the handle portions are arranged opposite to each other with their mutual opposed surface centers shifted in the axial direction of the pivot.

さらに、前記両方の磁石の相互の対向面中心のずらせてある方向は、前記作業部のブレードの刃が前記枢軸の軸線方向に対して相互に近付く方向と逆の方向としてある。
本発明の作業工具は、上記構成としてあることによって、柄部をエア等の外力又は手動握力によって接近動作させると、柄部間に対向配置されている両方の磁石に発生する反発力の枢軸方向成分によって、作業部のブレードの刃を枢軸の軸線方向に対して相互に近付ける方向に作用させることができ、しかも、この反発力は、柄部を接近させるほど大きくなり、これによって、作業工具のブレードの剪断力を効果的に向上させることができる。そして、前記柄部への外力又は手動握力を除去することにより、両方の磁石の反発力で柄部が離隔動作せしめられ、作業部のブレードが開放動作せしめられる。 Further, the direction in which the centers of the opposing surfaces of the two magnets are shifted is opposite to the direction in which the blades of the working unit approach each other with respect to the axial direction of the pivot.
The work tool of the present invention has the above-described configuration, and thus when the handle portion is moved closer by an external force such as air or a manual gripping force, the axial direction of the repulsive force generated in both magnets opposed to each other between the handle portions. Depending on the component, the blades of the working part blades can act in the direction of approaching each other with respect to the axial direction of the pivot axis, and this repulsive force increases as the handle part is brought closer to the working part. The shearing force of the blade can be effectively improved. Then, by removing the external force or manual gripping force on the handle, the handle is moved apart by the repulsive force of both magnets, and the blade of the working unit is opened.

また、前記柄部の対向面には、前記磁石の取付用凹部がそれぞれ形成され、各取付用凹部の周囲には前記磁石の周面に対して該凹部よりも浅い周溝が形成してある。
この構成によれば、磁石による反発磁力を多く（強く）することができる。
このように、本発明の作業工具は、エアニッパーブレードに適用すれば、スプリングの折れによるトラブルを無くすことができ、また、ブレード交換時等に起こるスプリング紛失も無くすことができ、さらに、定期的なスプリングの交換作業も不要とでき、しかも、ブレード寿命の延長が図れて交換頻度を減らすことができる。 In addition, concave portions for attaching the magnets are respectively formed on the opposing surfaces of the handle portions, and circumferential grooves shallower than the concave portions are formed around the peripheral surfaces of the magnets around the concave portions for attachment. .
According to this structure, the repulsive magnetic force by a magnet can be increased (strong).
As described above, when the work tool of the present invention is applied to an air nipper blade, troubles due to spring breakage can be eliminated, and loss of the spring that occurs when the blade is replaced can be eliminated. Therefore, it is not necessary to replace the spring, and the blade life can be extended to reduce the replacement frequency.

本発明によれば、柄部間に対向配置される同極磁石の反発力をブレードの剪断力の向上及び寿命延長にも有効利用可能とした作業工具を提供することができる。   ADVANTAGE OF THE INVENTION According to this invention, the working tool which made effective use of the repulsive force of the homopolar magnet arrange | positioned facing between handle parts also for the improvement of the shearing force of a braid | blade and lifetime extension can be provided.

本発明に係る作業工具の実施形態の後部より見た斜視図である。It is the perspective view seen from the rear part of the embodiment of the working tool concerning the present invention. 図１の作業工具の磁石取付位置で柄部を切断した状態の斜視図である。It is a perspective view of the state which cut | disconnected the handle | pattern part in the magnet attachment position of the work tool of FIG. 図１の作業工具の後部より見た正面図である。It is the front view seen from the rear part of the working tool of FIG. 図１の作業工具の磁石取付位置で柄部を切断した状態の拡大断面図である。It is an expanded sectional view of the state which cut | disconnected the handle | pattern part in the magnet attachment position of the work tool of FIG. 本発明の作業工具をエアニッパーに適用した場合の要部縦断側面図である。It is a principal part vertical side view at the time of applying the work tool of this invention to an air nipper.

以下、本発明に係る作業工具の実施の形態を図面を参照して説明する。
本発明に係る作業工具１は、図１〜図４に示すように、先端に作業部２、中間に枢着部３、後端に柄部４を備えた工具杆５を２個相対向するように組み合わされ、かつ、前記枢着部３を交叉重合するように枢軸６で枢着してなり、前記柄部４、４間に同極（例えば、Ｎ極とＮ極、又は、Ｓ極とＳ極）の磁石７、７を対向配置した構成からなっている。工具杆５は、硬質金属材料で構成されており、作業部２のブレード２ａは焼き入れ等の表面処理が施され、刃２ｂはシャープに仕上げられている。 Hereinafter, embodiments of a work tool according to the present invention will be described with reference to the drawings.
As shown in FIGS. 1 to 4, the working tool 1 according to the present invention has two tool rods 5 each having a working part 2 at the front end, a pivoting part 3 at the middle, and a handle part 4 at the rear end. And the pivot part 6 is pivotally attached to the pivot part 6 so as to cross-polymerize, and the pole parts 4 and 4 have the same polarity (for example, N pole and N pole, or S pole). And S poles) 7 and 7 are arranged opposite to each other. The tool bar 5 is made of a hard metal material, the blade 2a of the working unit 2 is subjected to a surface treatment such as quenching, and the blade 2b is sharpened.

前記両方の磁石７、７は、前記柄部４、４間に、図１〜図４に示すように、前記作業部２、２のブレード２ａ，２ａの刃２ｂ、２ｂが前記枢軸６の軸線方向に対して相互に近付く方向に向くようにずらせて対向配置されている。
前記柄部４、４間に対向配置される両方の磁石７、７は、図２〜図４に示すように、相互の対向面７ａ、７ａの中心を前記枢軸６の軸線方向にずらせて対向配置されている。
前記両方の磁石７、７の相互の対向面中心のずらせてある方向は、図１〜図４に示すように、前記作業部２、２のブレード２ａ、２ａの刃２ｂ、２ｂが相互に近付く方向と逆の方向とされている。これにより柄部４、４は、両方の磁石７、７の反発力によって枢軸６を中心として上下方向に離隔動作すると同時に、枢軸６の軸線方向にも反発し合うことによって、枢軸６の位置を支点として、作業部２、２のブレード２ａ、２ａの刃２ｂ、２ｂを枢軸６の軸線方向に対して相互に近付ける動作が得られる。 As shown in FIGS. 1 to 4, both the magnets 7 and 7 are arranged between the handle portions 4 and 4, and the blades 2 b and 2 b of the working portions 2 and 2 are connected to the axis of the pivot 6. They are arranged opposite to each other so as to be directed in directions that approach each other.
As shown in FIGS. 2 to 4, both magnets 7, 7 arranged opposite to each other between the handle parts 4, 4 are opposed to each other by shifting the centers of the opposing surfaces 7 a, 7 a in the axial direction of the pivot 6. Has been placed.
As shown in FIGS. 1 to 4, the blades 2a of the working units 2, 2 and the blades 2b, 2b of the 2a approach each other in the direction in which the centers of the opposing surfaces of the magnets 7, 7 are shifted. The direction is opposite to the direction. As a result, the handle parts 4, 4 move apart in the vertical direction around the pivot 6 by the repulsive force of both magnets 7, 7, and at the same time repel each other in the axial direction of the pivot 6. As a fulcrum, an operation of bringing the blades 2a and 2b of the working parts 2 and 2 close to each other with respect to the axial direction of the pivot 6 is obtained.

前記柄部４、４の対向面４ａ、４ａには、図２、図４に示すように、前記磁石７、７の取付用凹部８、８がそれぞれ形成され、各取付用凹部８、８の周囲には前記磁石７、７の周面に対して該凹部８、８よりも浅い周溝９、９が形成されている。磁石７、７は、取付用凹部８、８に嵌合され、適宜の接着剤を介して接着保持させてある。なお、接着剤を省力して磁石７、７自体の磁気吸着力で取付用凹部８、８に嵌合保持させるようにしてもよい。また、磁石７、７の周囲に前記周溝９、９を設けておくことによって、磁石７、７の反発磁力を多く（強く）することができる。   As shown in FIGS. 2 and 4, mounting recesses 8 and 8 for the magnets 7 and 7 are formed on the opposing surfaces 4 a and 4 a of the handle portions 4 and 4, respectively. Surrounding grooves 9 and 9 are formed shallower than the recesses 8 and 8 with respect to the peripheral surfaces of the magnets 7 and 7. The magnets 7 and 7 are fitted into the mounting recesses 8 and 8 and are bonded and held via an appropriate adhesive. Alternatively, the adhesive may be saved and the magnets 7 and 7 themselves may be fitted and held in the mounting recesses 8 and 8 by the magnetic attraction force. Further, by providing the circumferential grooves 9 and 9 around the magnets 7 and 7, the repulsive magnetic force of the magnets 7 and 7 can be increased (strong).

前記磁石７、７は、柄部４、４の対向面４ａ、４ａのどの位置に取り付けてもよいのであるが、枢軸６に近付けるほど開放角度を大きく保持させることができ、本実施形態における図示例では、枢軸６に近付けて取り付けた場合を例示している。なお、柄部４、４の対向面４ａ、４ａの後端付近には、柄部４、４の閉鎖端を規制するストッパ凸部４ｂ、４ｂが一体的に突設されており、これによって、作業部２、２のブレード２ａ，２ａの刃２ｂ、２ｂを保護するように構成されている。また、柄部４、４の開放端は、交叉重合させた枢着部３、３の外側切込み部３ａ、３ａによって規制するように構成されている。   The magnets 7 and 7 may be attached to any position of the opposing surfaces 4a and 4a of the handle parts 4 and 4. However, the closer to the pivot 6, the larger the opening angle can be maintained. In the illustrated example, the case where the pivot 6 is attached close to the pivot 6 is illustrated. In addition, stopper convex portions 4b and 4b for restricting the closed ends of the handle portions 4 and 4 are integrally projected near the rear ends of the opposed surfaces 4a and 4a of the handle portions 4 and 4, respectively. The blades 2a and 2b of the blades 2a and 2a of the working units 2 and 2 are configured to be protected. Further, the open ends of the handle portions 4 and 4 are configured to be regulated by the outer cut portions 3a and 3a of the pivoting portions 3 and 3 that are cross-polymerized.

図５は、本発明の作業工具１をエアニッパー１０に適用した場合の要部縦断側面図であって、エアニッパー１０は、円筒状本体１１と、この円筒状本体１１内に摺動可能に挿入されているピストン１２とを備えている。
円筒状本体１１の先端には、前記作業工具１が先端側の作業部２、２を円筒状本体１１の先端側に突出させ、後端側の柄部４、４を円筒状本体１１内に挿入した状態で枢軸６を利用して取り付けられている。
即ち、円筒状本体１１の先端側には枢軸６の両端を支持するためのブラケット部１１ａが一体に突設されている。そして、ピストン１２の先端面側には、円錐凹部１２ａが形成されており、この円錐凹部１２ａに作業工具１の柄部４、４の後端が挿入されている。 FIG. 5 is a longitudinal sectional side view of a main part when the work tool 1 of the present invention is applied to an air nipper 10, and the air nipper 10 is slidable in the cylindrical main body 11. And a piston 12 inserted therein.
At the tip of the cylindrical main body 11, the work tool 1 causes the working parts 2 and 2 on the front end side to protrude toward the front end side of the cylindrical main body 11, and the handle parts 4 and 4 on the rear end side in the cylindrical main body 11. It is attached using the pivot 6 in the inserted state.
That is, a bracket portion 11 a for supporting both ends of the pivot 6 is integrally provided on the distal end side of the cylindrical main body 11. And the conical recessed part 12a is formed in the front end surface side of the piston 12, The rear end of the handle | pattern parts 4 and 4 of the work tool 1 is inserted in this conical recessed part 12a.

円筒状本体１１の後端には端板１３が螺合されており、この端板１３とピストン１２との間に空気室１４が形成されている。空気室１４には、端板１３に形成されている通気孔１５から圧縮空気が供給されることによって、ピストン１２が円筒状本体１１内で圧縮ばね１６に抗して先端側へ移動し、円錐凹部１２ａによって作業工具１の柄部４、４を相互に接近させる方向に閉動作させ、先端側の作業部２のブレード２ａ、２ａの刃２ｂ、２ｂによって被切断物Ｗを切断動作させ、前記空気室１４から圧縮空気が排除されることによって、圧縮ばね１６の弾性復帰力によりピストン１２が後端側へ押し戻されるように構成されている。圧縮ばね１６は、円筒状本体１１の先端側内面段部とピストン１２の外面段部との間に圧縮状態で設置されており、ピストン１２を、常時、後端側へ押し戻すように設けられている。ピストン１２の外周面には、Ｏリング１７が設けられている。ピストン１２が後端側へ押し戻されることに関連して、作業工具１の柄部４、４は、磁石７、７の反発力によって離隔する方向に開放される。   An end plate 13 is screwed to the rear end of the cylindrical main body 11, and an air chamber 14 is formed between the end plate 13 and the piston 12. The compressed air is supplied to the air chamber 14 from the vent hole 15 formed in the end plate 13, so that the piston 12 moves to the tip side against the compression spring 16 in the cylindrical main body 11, and the cone 12 The concave parts 12a are used to close the handle parts 4 and 4 of the work tool 1 in the direction in which they approach each other, and the blade 2a and the blades 2b and 2b of the work part 2 on the front end side are cut and the workpiece W is cut. By excluding the compressed air from the air chamber 14, the piston 12 is configured to be pushed back to the rear end side by the elastic return force of the compression spring 16. The compression spring 16 is disposed in a compressed state between the front end side inner surface step portion of the cylindrical main body 11 and the outer surface step portion of the piston 12, and is provided so as to push the piston 12 back to the rear end side at all times. Yes. An O-ring 17 is provided on the outer peripheral surface of the piston 12. In connection with the piston 12 being pushed back to the rear end side, the handle portions 4, 4 of the work tool 1 are opened in the direction of separation by the repulsive force of the magnets 7, 7.

本発明の作業工具１は、上記実施形態のような構成としてあることによって、柄部４、４をエア等の外力又は手動握力によって接近動作させると、柄部４、４間に対向配置されている両方の磁石７、７に発生する反発力の枢軸６方向成分によって、作業部２、２のブレード２ａ、２ａの刃２ｂ、２ｂを枢軸６の軸線方向に対して相互に近付ける方向に作用させることができ、しかも、この反発力は、柄部４、４を接近させるほど大きくなり、これによって、作業工具１のブレード２ａ、２ａの剪断力を効果的に向上させることができる。そして、前記柄部４、４への外力又は手動握力を除去することにより、両方の磁石７、７の反発力で柄部４、４が離隔動作せしめられ、作業部２、２のブレード２ａ，２ａが開放動作せしめられる。   Since the work tool 1 of the present invention is configured as in the above embodiment, when the handle parts 4 and 4 are moved close to each other by an external force such as air or a manual gripping force, the work tools 1 and 4 are opposed to each other. The components in the pivot 6 direction of the repulsive force generated in both of the magnets 7, 7 act on the blades 2 a of the working units 2, 2, the blades 2 b of the 2 a, 2 b in a direction approaching each other with respect to the axial direction of the pivot 6. In addition, the repulsive force increases as the handle portions 4 and 4 are brought closer to each other, whereby the shearing force of the blades 2a and 2a of the work tool 1 can be effectively improved. Then, by removing the external force or manual gripping force on the handle parts 4, 4, the handle parts 4, 4 are moved apart by the repulsive force of both magnets 7, 7, and the blades 2 a, 2a is opened.

また、前記柄部４、４の対向面４ａ、４ａには、前記磁石７、７の取付用凹部８、８がそれぞれ形成され、各取付用凹部８、８の周囲には前記磁石７、７の周面に対して該凹部８、８よりも浅い周溝９、９が形成してあることによって、磁石７、７による反発磁力を多く（強く）することができる。
このように、本発明の作業工具１は、図５に示すようなエアニッパー１０のニッパーブレードに適用すれば、従来のスプリング採用方式のもののようなスプリングの折れによるトラブルを無くすことができ、また、ブレード交換時等に起こるスプリング紛失も無くすことができ、さらに、定期的なスプリングの交換作業も不要とでき、しかも、ブレード寿命の延長が図れて交換頻度を減らすことができる。 Also, mounting concave portions 8 and 8 for the magnets 7 and 7 are formed on the opposing surfaces 4a and 4a of the handle portions 4 and 4, respectively, and the magnets 7 and 7 are disposed around the mounting concave portions 8 and 8, respectively. By forming the circumferential grooves 9 and 9 shallower than the recesses 8 and 8 with respect to the peripheral surface, the repulsive magnetic force by the magnets 7 and 7 can be increased (strong).
As described above, when the work tool 1 of the present invention is applied to the nipper blade of the air nipper 10 as shown in FIG. In addition, it is possible to eliminate the loss of the spring that occurs at the time of blade replacement or the like, and it is also possible to eliminate the need for periodic spring replacement, and it is possible to extend the blade life and reduce the replacement frequency.

本発明に係る作業工具１は、以上の実施形態からなるが、本発明は、この実施形態にのみ制約されるものではなく、特許請求の範囲に記載した範囲内で自由に変形して実施してもよい。例えば、磁石７、７の形状は、円柱形状、その他、任意の形状としてもよい。また、磁石７、７は、ネオジウム磁石が最も磁力が強く、これ以外に、サマリウム・コバルト磁石や異方性フェライト磁石、アルニコ磁石等があり、用途に応じて最適のものを採用すればよい。さらに、磁石７、７のずらせ量は、図示実施形態では、磁石７、７の対向面の枢軸６方向幅寸法の約１／２とした場合を例示しているが、これに制約されるものではなく、０以上の適正な値とすればよい。   The work tool 1 according to the present invention includes the above embodiment, but the present invention is not limited to this embodiment, and can be freely modified within the scope of the claims. May be. For example, the magnets 7 and 7 may have a cylindrical shape or any other shape. As the magnets 7 and 7, neodymium magnets have the strongest magnetic force, and besides these, there are samarium / cobalt magnets, anisotropic ferrite magnets, alnico magnets, etc., and the most suitable magnets may be adopted depending on the application. Further, in the illustrated embodiment, the amount of displacement of the magnets 7 and 7 is illustrated as being about ½ of the width dimension in the direction of the axis 6 of the opposing surface of the magnets 7 and 7. Instead, it may be an appropriate value of 0 or more.

本発明の作業工具１は、エアニッパー、ハンド式ニッパー、ペンチ、プライヤー、ハサミ、バリカン等に適用することができる。   The work tool 1 of the present invention can be applied to air nippers, hand nippers, pliers, pliers, scissors, clippers and the like.

１ 作業工具
２ 作業部
２ａ ブレード
２ｂ 刃
３ 枢着部
４ 柄部
５ 工具杆
６ 枢軸
７ 磁石
８ 取付用凹部
９ 周溝
１０ エアニッパー
１１ 円筒状本体
１２ ピストン
１３ 端板
１４ 空気室
１５ 通気孔
１６ 圧縮ばね
１７ Ｏリング
Ｗ 被切断物 DESCRIPTION OF SYMBOLS 1 Work tool 2 Work part 2a Blade 2b Blade 3 Pivot part 4 Handle part 5 Tool rod 6 Pivot 7 Magnet 8 Recess for attachment 9 Circumferential groove 10 Air gripper 11 Cylindrical main body 12 Piston 13 End plate 14 Air chamber 15 Vent 16 Compression spring 17 O-ring W Workpiece

Claims (5)

先端に作業部、中間に枢着部、後端に柄部を備えた工具杆を２個相対向するように前記枢着部を交叉重合するように枢軸で枢着し、前記柄部間に同極の磁石を対向配置した作業工具において、前記両方の磁石を前記柄部間に、前記作業部のブレードの刃が前記枢軸の軸線方向に対して相互に近付く方向に向くようにずらせて対向配置してあることを特徴とする作業工具。   Two pivots with a working part at the tip, a pivot part in the middle, and a handle with a handle part at the rear end are pivotally attached to the pivot part so as to cross-polymerize each other. In a working tool in which magnets of the same polarity are arranged to face each other, the two magnets are opposed to each other while being shifted so that the blades of the blades of the working part are closer to each other with respect to the axial direction of the pivot. A work tool characterized by being arranged. 前記柄部間に対向配置される両方の磁石は、相互の対向面中心を前記枢軸の軸線方向にずらせて対向配置してあることを特徴とする請求項１に記載の作業工具。   2. The work tool according to claim 1, wherein both of the magnets arranged to face each other between the handle portions are arranged to face each other with their mutually opposed center being shifted in the axial direction of the pivot. 前記両方の磁石の相互の対向面中心のずらせてある方向は、前記作業部のブレードの刃が前記枢軸の軸線方向に対して相互に近付く方向と逆の方向としてあることを特徴とする請求項２に記載の作業工具。   The direction in which the centers of the opposing surfaces of the two magnets are shifted is a direction opposite to the direction in which the blades of the working unit approach each other with respect to the axial direction of the pivot. 2. The work tool according to 2. 前記柄部の対向面には、前記磁石の取付用凹部がそれぞれ形成され、各取付用凹部の周囲には前記磁石の周面に対して該凹部よりも浅い周溝が形成してあることを特徴とする請求項１〜３の何れか１項に記載の作業工具。   A concave portion for mounting the magnet is formed on the opposing surface of the handle portion, and a circumferential groove shallower than the concave portion with respect to the peripheral surface of the magnet is formed around each concave portion for mounting. The work tool according to any one of claims 1 to 3, characterized in that: 前記作業工具がエアニッパーブレードに適用されていることを特徴とする請求項１〜４の何れか１項に記載の作業工具。   The work tool according to claim 1, wherein the work tool is applied to an air nipper blade.
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JP2820600B2 (en) * 1993-09-17 1998-11-05 株式会社シゲル工業 Barber shears
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