JP5172253B2 - cutter knife - Google Patents

cutter knife Download PDF

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JP5172253B2
JP5172253B2 JP2007234085A JP2007234085A JP5172253B2 JP 5172253 B2 JP5172253 B2 JP 5172253B2 JP 2007234085 A JP2007234085 A JP 2007234085A JP 2007234085 A JP2007234085 A JP 2007234085A JP 5172253 B2 JP5172253 B2 JP 5172253B2
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cutter
finger ring
cutter knife
cutting
lower side
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JP2008136844A (en
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秀則 藤田
政樹 岸田
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株式会社ケイディエス
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Description

本発明は、グリップ部を兼ねるカッター本体部に刃体をスライド可能に収納保持し、カッター本体部の先端部から上記刃体の出幅調整が可能とされたカッターナイフに関する。   The present invention relates to a cutter knife in which a blade body is slidably housed and held in a cutter body portion that also serves as a grip portion, and the protruding width of the blade body can be adjusted from the tip portion of the cutter body portion.

上記のようなカッターナイフとして特許文献１や特許文献２に開示されたものが知られている。これらのカッターナイフは、グリップ部を兼ねるカッター本体部と、このカッター本体部にスライド可能に収納保持される刃体と、刃体の刃先部をカッター本体部の先端部より適宜突出操作させる為のスライダーとを備えている。このようなカッターナイフは、刃体の刃先部をスライダーの操作によりカッター本体部の先端部より少許突出させ、カッター本体部を把持して、刃先部を切断対象物に斜めに宛がい、刃先部に力を集中させて切断対象物上を引くように移動させながら切断を行うものである。また、処理対象面に付着する塗料や異物を削ぎ取る為に用いられることもあり、このような使用態様にあっては、刃先部を寝かせ、刃先部の背部を除去対象に宛がい押し出すように使用される。
特開平１１−２６７３７４号公報 特開２００４−１９５０９３号公報 As the cutter knife as described above, those disclosed in Patent Document 1 and Patent Document 2 are known. These cutter knives are used for appropriately projecting the cutter body part also serving as the grip part, the blade body slidably stored and held in the cutter body part, and the blade edge part of the blade body from the tip part of the cutter body part. And a slider. Such a cutter knife makes the edge of the blade body protrude slightly from the tip of the cutter body by operating the slider, grips the cutter body, and obliquely contacts the cutting edge with the cutting object. Cutting is performed while concentrating the force on the cutting object and moving it so as to pull on the cutting object. Also, it may be used to scrape paint and foreign matter adhering to the surface to be treated. In such a usage mode, the blade edge portion is laid and the back portion of the blade edge portion is pushed to the removal target and pushed out. used.
JP-A-11-267374 JP 2004-195093 A

上記のようなカッターナイフを用いて切断操作する際、刃先部を切断対象物に斜めに宛がい引くように操作されるが、把持されるカッター本体部は宙に浮いた状態である為、刃先部の切断対象物に対する宛がい（食い込ませ）角度及び刃先部に作用する力が一定せず、また、刃先部の切断対象物に対する食い込み量の調整もし難く、安定した切断が出来ないことがある。特に、切断対象物の表面が硬く或いは滑り易い場合には、刃先部の滑りや逃げも起こり易い為、一層安定した切断が出来ないことがある。また、異物等を削ぎ取る為に前方に押し出すように操作する際には、カッター本体部より把持する手指が前方に滑り動き、刃先部に十分な力が付加されないことがある。   When performing a cutting operation using the cutter knife as described above, it is operated so that the blade edge portion is obliquely addressed to the object to be cut, but the cutter body portion to be gripped is in a state of floating in the air. The cutting angle of the cutting part with respect to the cutting object and the force acting on the cutting edge part are not constant, and it is difficult to adjust the cutting amount of the cutting edge part with respect to the cutting object, and stable cutting may not be possible. . In particular, when the surface of the object to be cut is hard or slippery, the cutting edge part easily slips and escapes, so that more stable cutting may not be possible. Further, when an operation is performed to push forward to remove foreign matter or the like, a finger gripped from the cutter body part may slide forward, and sufficient force may not be applied to the blade edge part.

特許文献２に開示されたカッターナイフは、カッター本体部（把持柄）の基端部側に手指を差し入れることができる指環部を出没可能に備えている。この指環部はどのように用いられるものか定かではないが、切断操作の際に、切断対象物の表面に当接し操作のガイドをするものとは解されない。また、カッター本体部の先側部分には突起が形成されているが、これは把持した手の滑り止めと想像され、切断操作の際のガイドとなるものではないと解される。   The cutter knife disclosed by patent document 2 is equipped with the finger ring part which can insert a finger into the base end part side of a cutter main-body part (grip handle) so that it can appear and retract. Although it is not certain how this finger ring portion is used, it is not understood that the finger ring portion abuts on the surface of the object to be cut and guides the operation during the cutting operation. Further, a projection is formed on the front side portion of the cutter main body, but this is thought to be a non-slip of the gripped hand, and is understood not to serve as a guide for the cutting operation.

本発明は、上記実情に鑑みなされたものであり、刃先部に付加される力及び食い込み量の調整が容易で、刃先部の滑りや逃げがなく安定した操作を行うことができるカッターナイフを提供することを目的としている。   The present invention has been made in view of the above circumstances, and provides a cutter knife that can easily adjust the force applied to the cutting edge and the amount of bite, and can perform a stable operation without slipping or escaping the cutting edge. The purpose is to do.

本発明に係るカッターナイフは、グリップ部を兼ねるカッター本体部に刃体をスライド可能に収納保持し、カッター本体部の先端部から上記刃体の出幅調整が可能とされたカッターナイフにおいて、上記カッター本体部は、その下部に、手指を挿入し得る指環部を備え、該指環部の先側下辺部は、刃体の刃先部を切断対象物に宛がって切断操作する際、当該対象物の表面を摺接し得るよう形成され、前記カッター本体部は、前記刃体をスライド可能に収納保持する金属製のホルダ部と、該ホルダ部に外装された合成樹脂の成型体からなるグリップ部とよりなり、前記指環部はこのグリップ部に一体に形成されていることを特徴とする。 The cutter knife according to the present invention is a cutter knife in which the blade body is slidably stored and held in the cutter body portion also serving as a grip portion, and the above-mentioned blade body width adjustment is possible from the tip portion of the cutter body portion. The cutter body portion includes a finger ring portion into which a finger can be inserted at a lower portion thereof, and the front lower side portion of the finger ring portion is subjected to the cutting operation when the cutting edge portion of the blade body is directed to the cutting object The cutter body is formed so as to be in sliding contact with the surface of the object. The finger ring portion is formed integrally with the grip portion .

本発明において、前記指環部の先側下辺部が、該指環部の環状方向に沿って曲面状に形成されているものとすることができる。また、前記指環部の先側下辺部は、その断面形状が略平坦で、且つ該下辺部に繋がる両側辺部の少なくとも一方が該下辺部に対し略垂直に立ち上がった形状とされているものとすることもできる。 In this invention, the front side lower side part of the said finger ring part shall be formed in the curved surface form along the annular direction of this finger ring part. Further, the front lower side of the finger ring part has a substantially flat cross-sectional shape, and at least one of both side parts connected to the lower side part rises substantially perpendicular to the lower side part. Ru can also be.

本発明のカッターナイフは、カッター本体部の下部に手指を挿入し得る指環部を備えているから、カッター本体部の把持状態が安定し、使用時に不意に落下することがない。また、該指環部の先側下辺部が、切断対象物の表面を摺接し得るよう形成されているから、刃体の刃先部を切断対象物に宛がって切断操作する際、指環部の先側下辺部を切断対象物の表面に当て込むことができ、これにより、刃先部に付加される力が安定し、刃先部の切断対象物に対する食い込み量の調整がし易く、また、刃先部の滑りや逃げも生じ難く、安定した切断操作を行うことができる。更に、異物を削ぎ取る為にヘラのように使用する際にも、カッター本体部に対する手の滑りが生じず、必要な力に無駄がなく、安定した削ぎ取り操作を行うことができる。加えて、指環部を用いて壁等に掛けることができ、保管性も良く、また、デザインの斬新性も得られる。更に、前記カッター本体部が、刃体をスライド可能に収納保持する金属製のホルダ部と、該ホルダ部に外装された合成樹脂の成型体からなるグリップ部とよりなり、前記指環部はこのグリップ部に一体に形成されているから、金属製のホルダ部により剛性が付与され、また、合成樹脂の成型体によりグリップ部及び指環部が簡易に形成されると共に手指による把持感触が良くなり、加えて意匠性も向上する。 Since the cutter knife of the present invention includes a finger ring part into which a finger can be inserted at the lower part of the cutter body part, the gripping state of the cutter body part is stable and does not fall unexpectedly during use. In addition, since the lower side of the front side of the finger ring portion is formed so as to be able to slide on the surface of the object to be cut, when the cutting operation is performed with the blade edge portion of the blade body directed to the object to be cut, The front lower side can be applied to the surface of the object to be cut, so that the force applied to the cutting edge is stabilized, and the amount of biting of the cutting edge with respect to the cutting object can be easily adjusted. Therefore, it is possible to perform a stable cutting operation. Furthermore, even when used like a spatula to scrape off foreign matter, there is no slipping of the hand against the cutter body, and there is no waste of necessary force, and a stable scraping operation can be performed. In addition, it can be hung on a wall or the like by using a finger ring portion, so that it can be stored well and a novel design can be obtained. Further, the cutter main body portion is composed of a metal holder portion that slidably accommodates and holds the blade body, and a grip portion that is formed of a synthetic resin molded body that is externally mounted on the holder portion, and the finger ring portion is the grip portion. Since it is formed integrally with the part, rigidity is given by the metal holder part, and the grip part and the finger ring part are easily formed by the synthetic resin molding, and the grip feeling by fingers is improved. The design is also improved.

また、前記指環部の先側下辺部が、該指環部の環状方向に沿って曲面状に形成されているものとすれば、この指環部の先側下辺部を切断対象物の表面に当て込んで切断操作する際、前記摺接が円滑になし得、切断操作がより安定化する。更に、前記指環部の先側下辺部の断面形状を略平坦とし、且つ該下辺部に繋がる両側辺部の少なくとも一方が該下辺部に対し略垂直に立ち上がった形状とした場合、先側下辺部を切断対象物の表面に当て込む際の安定性が増すと共に、定規等を使って切断操作する際、該下辺部より略垂直に立ち上がる側辺部を定規等の縁部に沿わせることによって、所望形状に沿った切断が正確且つ安定的になされる。 Further, if the front lower side portion of the finger ring portion is formed in a curved shape along the annular direction of the finger ring portion, the front lower side portion of the finger ring portion is applied to the surface of the object to be cut. When the cutting operation is performed, the sliding contact can be smoothly performed, and the cutting operation is further stabilized. Further, when the cross-sectional shape of the front lower side portion of the finger ring portion is substantially flat and at least one of both side portions connected to the lower side portion rises substantially perpendicular to the lower side portion, the front lower side portion When the cutting operation is performed using a ruler or the like, the side part that rises substantially perpendicularly from the lower side part is placed along the edge of the ruler or the like. desired shape cut along the Ru done accurately and stably.

以下に本発明の最良の実施の形態について、図面に基づいて説明する。図１は本発明のカッターナイフの一実施形態を示す正面図、図２は図１におけるＸ−Ｘ線矢視断面図、図３は同カッターナイフの使用状態を示す正面図、図４は他の実施形態の図１と同様図、図５は更に別の実施形態のカッターナイフの使用状態を示す正面図、図６は図５におけるＹ−Ｙ線矢視断面図、図７は図５におけるＺ−Ｚ線矢視断面図である。   The best mode for carrying out the present invention will be described below with reference to the drawings. 1 is a front view showing an embodiment of the cutter knife of the present invention, FIG. 2 is a sectional view taken along line XX in FIG. 1, FIG. 3 is a front view showing the usage state of the cutter knife, and FIG. FIG. 5 is a front view showing the usage state of the cutter knife of still another embodiment, FIG. 6 is a cross-sectional view taken along line YY in FIG. 5, and FIG. 7 is in FIG. It is ZZ arrow sectional drawing.

図１乃至図３に示すカッターナイフ１は、グリップ部を兼ねるカッター本体部２と、このカッター本体部２にスライド可能に収納保持される刃体６と、刃体６の刃先部６ａをカッター本体部２の先端部より適宜突出操作させる為のスライダー７とを備えている。カッター本体部２は、刃体６をスライド可能に収納保持する金属製のホルダ部３と、該ホルダ部３に外装された合成樹脂の成型体からなるグリップ部４とよりなり、このグリップ部４の下部に複数本の指を挿入し得る指環部５が一体に形成されている。刃体６は替刃とされ、その基端部の係合孔６ｂに、スライダー７のピン７ａを係合させ、スライダー７のスライド操作によって、ホルダ部３の先端部３ａ（カッター本体部２の先端部）からその刃先部６ａの出幅調整が可能とされている。   A cutter knife 1 shown in FIGS. 1 to 3 includes a cutter body 2 that also serves as a grip, a blade body 6 that is slidably stored and held in the cutter body 2, and a blade edge portion 6 a of the blade body 6. And a slider 7 for appropriately projecting from the tip of the portion 2. The cutter body 2 includes a metal holder portion 3 that slidably accommodates and holds the blade body 6 and a grip portion 4 that is a synthetic resin molded body that is externally mounted on the holder portion 3. A finger ring portion 5 into which a plurality of fingers can be inserted is formed integrally with the lower portion of the finger ring. The blade body 6 is a replaceable blade, and the pin 7a of the slider 7 is engaged with the engagement hole 6b of the base end portion thereof. By sliding the slider 7, the distal end portion 3a of the holder portion 3 (of the cutter body portion 2). The leading edge of the blade edge portion 6a can be adjusted from the front end portion.

ホルダ部３は刃体６をスライド可能に収納し得るよう、板金加工によって扁平筒状に形成され、その側部にはスライダー７のスライド溝３ｂが形成されている。このスライド溝３ｂの片側辺縁部には、波形のロック係止部３ｃが形成され、スライダー７に設けられた弾性ロック部材（不図示）をこのロック係止部３ｃに弾性係合させることにより、刃体６を適宜位置に係止ロックさせることができる。刃体６とスライダー７とは、上記ピン７ａを係合孔６ｂに係合させた状態でホルダ３の基端部より挿入され、スライダー７のスライド溝３ｂに沿ったスライド操作により刃体６の刃先部６ａの出幅調整が可能とされる。図１は、非使用時の状態であり、刃体６がホルダ部３内に完全に収納された状態を示し、使用時には後記するように、スライダー７をスライド操作して刃先部６ａがホルダ部３の先端部３ａより少許突出される。ホルダ部３の基端部にはキャップ８が着脱自在に装着され、このキャップ８を取外し、ホルダ部３の基端部よりスライダー7を刃体６と共に取出し、刃体６の取替等が可能とされている。   The holder portion 3 is formed into a flat cylindrical shape by sheet metal processing so that the blade body 6 can be slidably accommodated, and a slide groove 3b of the slider 7 is formed on a side portion thereof. A corrugated lock engaging portion 3c is formed on one side edge of the slide groove 3b, and an elastic lock member (not shown) provided on the slider 7 is elastically engaged with the lock engaging portion 3c. The blade body 6 can be locked and locked at an appropriate position. The blade body 6 and the slider 7 are inserted from the base end portion of the holder 3 with the pin 7a engaged with the engagement hole 6b, and the blade body 6 is moved by the slide operation along the slide groove 3b of the slider 7. The protruding width of the blade edge portion 6a can be adjusted. FIG. 1 shows a state when not in use, and shows a state in which the blade body 6 is completely housed in the holder portion 3. When used, the blade edge portion 6a is moved to the holder portion by sliding the slider 7 as will be described later. 3 protrudes slightly from the tip 3a. A cap 8 is detachably attached to the base end portion of the holder portion 3. The cap 8 can be removed, and the slider 7 can be taken out from the base end portion of the holder portion 3 together with the blade body 6, so that the blade body 6 can be replaced. It is said that.

グリップ部４は、合成樹脂の成型体からなり、手指によって把持し得る形状・大きさとされ、ホルダ部３の上下及び背部（スライド溝３ｂの反対側）を覆うよう一体に外装されている。このグリップ部４のホルダ部３に対する外装一体化は、事前に板金加工されたホルダ部３を成型金型内に配置し樹脂成型と同時に行う場合の他、事前に成型されたグリップ部４を接着剤等によりホルダ部３の所定部位に貼着一体とすること、或いはグリップ部４をホルダ部３にビス止めすること、更にはホルダ部３をグリップ部４に差込んで一部をかしめること、等によってもなされる。このグリップ部４の先側上面の親指が添えられる部分は、その滑りを防止する為の凹凸面４ａとされている。グリップ部４の下部には、親指を除く４本の手指を挿入し得る指環部５が一体に形成されている。この指環部５の先側下辺部５ａは、後記するように切断操作時に切断対象物の表面に当て込んだ状態で当該表面上を円滑に摺接し得るよう、正面視して、即ち、指環部５の環状方向に沿って凸曲面状に形成されている。   The grip portion 4 is made of a synthetic resin molded body, has a shape and size that can be gripped by fingers, and is integrally packaged so as to cover the top and bottom and the back portion (opposite the slide groove 3b) of the holder portion 3. The grip unit 4 can be externally integrated with the holder unit 3 by placing the holder unit 3 processed in advance in a metal mold in a molding die and simultaneously with resin molding, or by adhering the grip unit 4 molded in advance. Adhering to a predetermined part of the holder part 3 with an agent or the like, or screwing the grip part 4 to the holder part 3, and further inserting the holder part 3 into the grip part 4 and caulking a part thereof , Etc. A portion to which the thumb on the front upper surface of the grip portion 4 is attached is an uneven surface 4a for preventing the slip. A finger ring portion 5 into which four fingers other than the thumb can be inserted is formed integrally with the lower portion of the grip portion 4. The front lower side portion 5a of the finger ring portion 5 is viewed from the front, ie, the finger ring portion 5 so that the surface can be smoothly slid in contact with the surface of the object to be cut during the cutting operation as will be described later. Is formed in a convex curved surface shape along the annular direction.

上記構成のカッターナイフ１の使用例について図３を参照して述べる。図３に示すように、スライダー７をスライド溝３ｂに沿ってスライド操作して、刃体６の刃先部６ａをホルダ部３の先端部３ａより少許突出させる。親指を凹凸面４ａに添え且つ親指を除く４本の手指を指環部５に挿入してグリップ部４を把持する。このように、グリップ部４の把持は、４本の指を指環部５に挿入してなされるから、把持が確実になされ、不意にカッターナイフ１が落下するようなことがない。また、軍手をはめて作業する場合にも滑ることがなく何ら支障を来たさない。   An example of use of the cutter knife 1 having the above configuration will be described with reference to FIG. As shown in FIG. 3, the slider 7 is slid along the slide groove 3 b so that the blade edge portion 6 a of the blade body 6 protrudes slightly from the tip portion 3 a of the holder portion 3. A thumb is attached to the concavo-convex surface 4 a and four fingers excluding the thumb are inserted into the finger ring portion 5 to grip the grip portion 4. As described above, the grip portion 4 is gripped by inserting four fingers into the finger ring portion 5, so that gripping is ensured and the cutter knife 1 does not fall unexpectedly. Also, when working with a work gloves, it will not slip and will not cause any trouble.

そして、指環部５の先側下辺部５ａを切断対象物（ダンボール紙、厚紙、樹脂板、樹脂シート、木板等）ｍの表面に当て込むと共に、刃体６の刃先部６ａを当該切断対象物ｍに食い込ませる。このように、指環部５の先側下辺部５ａを切断対象物ｍの表面に当て込んだ状態で刃先部６ａを切断対象物ｍに食い込ませるから、先側下辺部５ａと切断対象物ｍの表面との当接点ｐが支点となり、これにより刃先部６ａの食い込み量の調整がし易く、安定した力を刃先部６ａに付与させることができる。また、切断対象物ｍが樹脂板や樹脂シートであっても、刃先部６ａの滑りや逃げを生じることなく食い込ませることができる。この状態で白抜矢示方向にカッターナイフ１を移動させると、上記先側下辺部５ａが上記のように曲面状に形成されているから、切断対象物ｍの表面を円滑に摺接し、刃先部６ａの切断対象物ｍに対する食い込み角度が一定し且つ刃先部６ａに対して力を入れ易い状態で切断操作がなされ、切断操作を安定した状態で行うことができる。   And while letting the front side lower side part 5a of the finger ring part 5 hit the surface of cutting object (cardboard paper, cardboard, resin board, resin sheet, wood board, etc.) m, the cutting edge part 6a of the blade body 6 is the said cutting object. bite into m. Thus, since the blade edge | tip part 6a bites into the cutting target m in the state which applied the front side lower side part 5a of the finger ring part 5 to the surface of the cutting target m, the front side lower side part 5a and the surface of the cutting target m The contact point p is a fulcrum, which makes it easy to adjust the amount of biting of the blade edge portion 6a, and a stable force can be applied to the blade edge portion 6a. Moreover, even if the cutting object m is a resin plate or a resin sheet, the cutting edge 6a can be bitten without causing slippage or escape. In this state, when the cutter knife 1 is moved in the direction indicated by the white arrow, the tip side lower side portion 5a is formed in a curved shape as described above. The cutting operation is performed in a state where the biting angle of the part 6a with respect to the cutting object m is constant and the force can be easily applied to the blade edge part 6a, and the cutting operation can be performed in a stable state.

上記カッターナイフ１は、その本来の使用目的とは異なるが、ユーザーによっては、処理対象物の表面に付着する塗料や異物を削ぎ取る為にヘラの代用とし使用することがある。即ち、刃先部６ａを寝かせ、処理対象物の表面に宛がい、前方に押し出すように操作される。このような使用態様でも、手指が指環部５に挿入されているから、グリップ部４から手指が先側に滑り動いて外れるようなことがない為力が入れ易く、削ぎ取り操作の適性も向上する。また、指環部５は、非使用時に壁や衣類等に引っ掛ける為に使用することができ、保管や持ち運びにも便利である。   Although the cutter knife 1 is different from its original purpose of use, some users may use it as a spatula in order to scrape paint or foreign matter adhering to the surface of the object to be processed. That is, an operation is performed so that the blade edge portion 6a is laid down, directed to the surface of the object to be processed, and pushed forward. Even in such a mode of use, since the fingers are inserted into the finger ring portion 5, the fingers are not slid away from the grip portion 4 so that the force is easily applied, and the suitability of the shaving operation is improved. To do. Further, the finger ring portion 5 can be used to be hooked on a wall or clothing when not in use, and is convenient for storage and carrying.

図４は、他の実施形態を示し、この実施形態のカッターナイフ１Ａは、指環部５が１本の手指（人差指）を挿入し得るようになされている点で上記実施形態と異なる。このカッターナイフ１Ａの使用に際しては、図示を省略するが、上記同様親指をグリップ部４の先側上面の凹凸面４ａに添え、人差指を指環部５に挿入し、他の指をグリップ部４の後方下部４ｂに宛がうようにして把持する。この把持状態で図３と同様に切断操作がなされる。この場合も、指環部５の先側下辺部５ａを切断対象物ｍの表面に当て込んだ状態で刃先部６ａを切断対象物ｍに食い込ませるから、上記と同様の作用・効果を奏する。その他の構成は上記と同様であるから、共通部分に同一の符号を付し、その説明を割愛する。   FIG. 4 shows another embodiment, and the cutter knife 1A of this embodiment is different from the above embodiment in that the finger ring portion 5 can be inserted with one finger (index finger). When the cutter knife 1A is used, although not shown, the thumb is attached to the concave and convex surface 4a on the top surface of the grip portion 4, the index finger is inserted into the finger ring portion 5, and the other finger is attached to the grip portion 4 as described above. Grasping is done so as to reach the rear lower part 4b. In this gripping state, the cutting operation is performed as in FIG. Also in this case, since the blade edge part 6a is bitten into the cutting object m in a state where the front side lower side part 5a of the finger ring part 5 is applied to the surface of the cutting object m, the same operations and effects as described above are achieved. Since other configurations are the same as described above, the same reference numerals are assigned to the common portions, and the description thereof is omitted.

図５乃至図７は更に別の実施形態を示す。この実施形態のカッターナイフ１Ｂにおいては、主に、指環部５の先側下辺部５ａの断面形状とスライダー７の構造が上記実施形態と異なるが、その他の形状等は設計事項の範囲内で若干異なる程度である。即ち、指環部５の先側下辺部５ａは、その断面形状が図６に示すような曲率半径が大きい凸曲形状を含む略平坦な形状とされ、且つこの下辺部５ａに繋がる両側辺部５ｂ，５ｂが、下辺部５ａに対して略垂直に立ち上がるような形状とされている。また、スライダー７は、図７に示すようにホルダ部３のスライド溝３ｂに沿ってスライドするスライダーベース７ｂと、該スライダーベース７ｂに対してねじ部７ｃを介して螺装されたスライド操作ノブ７ｄとよりなる。スライダーベース７ｂの先側にはピン状突起７ｅが形成され、該ピン状突起７ｅは刃体６の基部に形成された係合孔６ｂにスライド溝３ｂの溝底側より挿入係合されている。ねじ部７ｃはスライド操作ノブ７ｄの回動操作により、スライダーベース７ｂに対して螺進・螺退が可能とされ、その先端はスライダーベース７ｂよりスライド溝３ｂの溝底側に突出し得るように構成されている。その他の構成は第１の実施形態に係るカッターナイフ１と略同様である。   5 to 7 show still another embodiment. In the cutter knife 1B of this embodiment, the cross-sectional shape of the front side lower side portion 5a of the finger ring portion 5 and the structure of the slider 7 are different from those of the above embodiment, but other shapes and the like are slightly within the scope of the design matters. To a different extent. That is, the front lower side portion 5a of the finger ring portion 5 has a substantially flat shape including a convex curved shape having a large curvature radius as shown in FIG. 6, and both side portions 5b connected to the lower side portion 5a. , 5b rises substantially perpendicular to the lower side 5a. Further, as shown in FIG. 7, the slider 7 includes a slider base 7b that slides along the slide groove 3b of the holder portion 3, and a slide operation knob 7d that is screwed to the slider base 7b via a screw portion 7c. And more. A pin-like protrusion 7e is formed on the front side of the slider base 7b, and the pin-like protrusion 7e is inserted and engaged from the groove bottom side of the slide groove 3b into an engagement hole 6b formed in the base of the blade body 6. . The screw portion 7c can be screwed and unscrewed with respect to the slider base 7b by rotating the slide operation knob 7d, and its tip can protrude from the slider base 7b toward the bottom of the slide groove 3b. Has been. Other configurations are substantially the same as those of the cutter knife 1 according to the first embodiment.

上記構成のカッターナイフ１Ｂを用いて、切断対象物ｍを切断する場合、スライダー７の操作ノブ７ｄを回動操作してねじ部７ｃの螺装を緩め、スライダー７のスライド操作ノブ７ｄをスライド操作して刃体６の刃先部６ａをホルダ部３の先端部３ａより少許突出させる。この状態で操作ノブ７ｄを回動操作してねじ部７ｃを締め付けると、ねじ部７ｃの先端がスライド溝３ｂの溝底に当接緊合し、この反力で、スライダーベース７ｂと共に刃体６が反溝底側に持ち上げられる。これによって、刃体６がスライド溝３ｂの開口側縁部内面に押付けられてガタ付きが抑えられた状態で固定される。従って、切断操作時の刃先部６ａの安定化が図られる。そして、上記同様親指を除く４本の指を指環部５に挿入してグリップ部４を把持し、指環部５の先側下辺部５ａを切断対象物ｍの表面に当て込むと共に、刃体６の刃先部６ａを当該切断対象物ｍに食い込ませて、白抜矢示方向にカッターナイフ１Ｂを移動させることによって切断対象物ｍの切断がなされる。従って、上記同様、刃先部６ａの切断対象物ｍに対する食い込み角度が一定し且つ刃先部６ａに対して力を入れ易い状態で切断操作がなされ、切断操作を安定した状態で行うことができる。   When cutting the object m to be cut using the cutter knife 1B having the above-described configuration, the operation knob 7d of the slider 7 is rotated to loosen the screw portion 7c, and the slide operation knob 7d of the slider 7 is slid. Then, the blade edge portion 6 a of the blade body 6 is slightly protruded from the tip portion 3 a of the holder portion 3. When the screw 7c is tightened by rotating the operation knob 7d in this state, the tip of the screw 7c comes into contact with the groove bottom of the slide groove 3b, and this reaction force causes the blade 6 together with the slider base 7b. Is lifted to the bottom side of the groove. As a result, the blade body 6 is pressed against the inner surface of the opening side edge of the slide groove 3b and is fixed in a state in which rattling is suppressed. Therefore, stabilization of the blade edge | tip part 6a at the time of cutting operation is achieved. Then, four fingers other than the thumb are inserted into the finger ring portion 5 to grip the grip portion 4, and the front lower side portion 5a of the finger ring portion 5 is applied to the surface of the cutting object m as well as the blade body 6 as described above. The cutting edge m is cut into the cutting object m, and the cutting object m is cut by moving the cutter knife 1B in the direction indicated by the white arrow. Therefore, as described above, the cutting operation is performed in a state where the biting angle of the cutting edge portion 6a with respect to the cutting object m is constant and the force can be easily applied to the cutting edge portion 6a, and the cutting operation can be performed in a stable state.

この時、切断対象物ｍの上に定規ｒ等の切断基準部材を置き、この定規ｒの縁部に沿って上記切断操作を行うことが間々なされる。この場合、指環部５の先側下辺部５ａが、上記のように指環部５の環状方向に曲面状に形成されていることに加えてその断面形状が略平坦な形状とされているから、切断対象物ｍの表面を円滑に摺接すると共に、刃先部６ａが左右にフラ付くことなく安定的な切断がなされる。しかも、先側下辺部５ａに繋がる両側辺部５ｂ，５ｂが、下辺部５ａに対して略垂直に立ち上がるような形状とされているから、一方の側辺部５ｂを定規ｒの縁部に沿わせることによって、定規ｒを用いた切断操作が的確になされ、下辺部５ａの断面形状が略平坦状とされていることとも相俟って、所望形状に沿った切断が正確且つ安定的になされる。切断終了後は、スライド操作ノブ７ｄを回動操作して、ねじ部７ｃの上記スライド溝３ｂの溝底に対する当接緊合を解除すれば、刃体６をその刃先部６ａも含めてホルダ部３内に収納することができる。   At this time, a cutting reference member such as a ruler r is placed on the object m to be cut, and the cutting operation is often performed along the edge of the ruler r. In this case, since the front lower side portion 5a of the finger ring portion 5 is formed in a curved shape in the annular direction of the finger ring portion 5 as described above, the cross-sectional shape thereof is a substantially flat shape. The surface of the cutting object m is smoothly slid and the cutting edge 6a is stably cut without causing the blade edge portion 6a to flutter from side to side. In addition, since both side portions 5b and 5b connected to the front side lower side portion 5a are formed so as to rise substantially perpendicular to the lower side portion 5a, one side side portion 5b extends along the edge of the ruler r. By doing so, the cutting operation using the ruler r is performed accurately, and the cutting along the desired shape is performed accurately and stably, coupled with the fact that the cross-sectional shape of the lower side portion 5a is substantially flat. The After the end of cutting, if the sliding operation knob 7d is turned to release the contact and tightness of the screw portion 7c with respect to the groove bottom of the slide groove 3b, the blade body 6 including the blade edge portion 6a and the holder portion 3 can be stored.

尚、指環部５を、手指を２本若しくは３本挿入し得るものとすることは、可能であるが、この場合でも少なくとも人差指が挿入し得る位置に形成されるべきことが肝要である。また、カッターナイフ自体の構造は、従来公知のものが適用される。全体形状も図例のものに限定されず、意匠性等を勘案して適宜変更し得ることは言うまでもない。更に、図５乃至図７に示す実施形態において、側辺部５ｂ，５ｂの両方を、下辺部５ａに対して略垂直に立ち上げるよう形成しているが、この形成態様はどちらか一方であっても良い。   Although it is possible to insert two or three fingers into the finger ring portion 5, it is important to form at least a position where the index finger can be inserted even in this case. Moreover, a conventionally well-known thing is applied for the structure of cutter knife itself. It is needless to say that the overall shape is not limited to that shown in the drawings, and can be appropriately changed in consideration of design properties and the like. Further, in the embodiment shown in FIGS. 5 to 7, both the side portions 5b and 5b are formed so as to rise substantially perpendicularly to the lower side portion 5a. May be.

本発明のカッターナイフの一実施形態を示す正面図である。It is a front view which shows one Embodiment of the cutter knife of this invention. 図１におけるＸ−Ｘ線矢視断面図である。FIG. 2 is a cross-sectional view taken along line XX in FIG. 1. 同カッターナイフの使用状態を示す正面図である。It is a front view which shows the use condition of the cutter knife. 他の実施形態の図１と同様図である。It is a figure similar to FIG. 1 of other embodiment. 更に別の実施形態のカッターナイフの使用状態を示す正面図である。It is a front view which shows the use condition of the cutter knife of another embodiment. 図５におけるＹ−Ｙ線矢視断面図である。FIG. 6 is a cross-sectional view taken along line YY in FIG. 5. 図５におけるＺ−Ｚ線矢視断面図である。FIG. 6 is a sectional view taken along line ZZ in FIG. 5.

符号の説明Explanation of symbols

１ カッターナイフ
１Ａ カッターナイフ
１Ｂ カッターナイフ
２ カッター本体部
３ ホルダ部
３ａ 先端部（カッター本体部の先端部）
４ グリップ部
５ 指環部
５ａ 先側下辺部
５ｂ 側辺部
６ 刃体
６ａ 刃先部
ｍ 切断対象物
DESCRIPTION OF SYMBOLS 1 Cutter knife 1A Cutter knife 1B Cutter knife 2 Cutter body part 3 Holder part 3a Tip part (tip part of cutter body part)
4 Grip part 5 Finger ring part 5a Front side lower side part 5b Side side part 6 Blade body 6a Cutting edge part m Cutting object

Claims (3)

グリップ部を兼ねるカッター本体部に刃体をスライド可能に収納保持し、カッター本体部の先端部から上記刃体の出幅調整が可能とされたカッターナイフにおいて、
上記カッター本体部は、その下部に、手指を挿入し得る指環部を備え、該指環部の先側下辺部は、刃体の刃先部を切断対象物に宛がって切断操作する際、当該対象物の表面を摺接し得るよう形成され、
前記カッター本体部は、前記刃体をスライド可能に収納保持する金属製のホルダ部と、該ホルダ部に外装された合成樹脂の成型体からなるグリップ部とよりなり、前記指環部はこのグリップ部に一体に形成されていることを特徴とするカッターナイフ。 In the cutter knife in which the blade body is slidably stored and held in the cutter body portion also serving as the grip portion, and the width of the blade body can be adjusted from the tip of the cutter body portion,
The cutter body portion includes a finger ring portion into which a finger can be inserted at a lower portion thereof. It is formed so that the surface of the object can be slid ,
The cutter body includes a metal holder that slidably accommodates and holds the blade body, and a grip portion that is formed of a synthetic resin molded body that is sheathed on the holder portion, and the finger ring portion is the grip portion. A cutter knife characterized by being formed integrally with the cutter knife. 請求項１に記載のカッターナイフにおいて、
前記指環部の先側下辺部は、該指環部の環状方向に沿って曲面状に形成されていることを特徴とするカッターナイフ。 The cutter knife according to claim 1,
A cutter knife, wherein a lower side portion on a front side of the finger ring portion is formed in a curved shape along an annular direction of the finger ring portion. 請求項１または２に記載のカッターナイフにおいて、
前記指環部の先側下辺部は、その断面形状が略平坦で、且つ該下辺部に繋がる両側辺部の少なくとも一方が該下辺部に対し略垂直に立ち上がった形状とされていることを特徴とするカッターナイフ。 The cutter knife according to claim 1 or 2,
The front lower side portion of the finger ring portion is substantially flat in cross-sectional shape, and at least one of both side portions connected to the lower side portion is shaped to rise substantially perpendicular to the lower side portion. Cutter knife to do.
JP2007234085A 2006-11-08 2007-09-10 cutter knife Expired - Fee Related JP5172253B2 (en)

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CN104275708A (en) * 2014-09-28 2015-01-14 顺德工业(江苏)有限公司 Damage-resistant structure for springs of adjuster of utility knife

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JPS5921725Y2 (en) * 1979-06-09 1984-06-27 株式会社貝印刃物センタ− cutter knife
JPS6147979U (en) * 1984-08-31 1986-03-31 プラス株式会社 cutout knife
JPH0975560A (en) * 1995-09-11 1997-03-25 Yoshihiro Maekawa Folding blade cutter with guide for cutting

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