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JP2015003270A - Edged tool - Google Patents

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Publication number
JP2015003270A
JP2015003270A JP2014205562A JP2014205562A JP2015003270A JP 2015003270 A JP2015003270 A JP 2015003270A JP 2014205562 A JP2014205562 A JP 2014205562A JP 2014205562 A JP2014205562 A JP 2014205562A JP 2015003270 A JP2015003270 A JP 2015003270A
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Japan
Prior art keywords
blade
recess
length
concave
blade portion
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JP2014205562A
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Japanese (ja)
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JP5914611B2 (en
Inventor
邦夫 鈴木
Kunio Suzuki
直樹 黒鳥
Naoki Kurotori
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ARNEST Inc
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ARNEST Inc
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Abstract

PROBLEM TO BE SOLVED: To provide an edged tool that can prevent a blade part from becoming worn early and that has a saw-like blade enabling even a hard object to be smoothly cut.SOLUTION: A blade part 110 of an edged tool 100 is formed as a saw-like blade in which a protrusion 111 and a recess 112 alternately continue in the lengthwise direction of the blade part 110. The length L1 of the protrusion 111 and the length L2 of the recess 112 in the lengthwise direction of the blade part 110 are equal to each other. A second recess 113 elongated in the width direction of the blade part 110 and continuing into the recess 112 is formed in at least one of both side surface parts of the edged tool.

Description

本発明は、刃物に関し、特に、鋸状刃を有する刃物に関する。 The present invention relates to a blade, and more particularly to a blade having a saw blade.

鋸状刃を有する刃物の一例として、特許文献１に記載の先行技術に係るものがある。 As an example of a blade having a saw blade, there is one related to the prior art described in Patent Document 1.

図３は上記特許文献１に記載された刃物の部分的平面図、図４は図３に示された刃物の部分的拡大図である。 FIG. 3 is a partial plan view of the cutter described in Patent Document 1, and FIG. 4 is a partially enlarged view of the cutter shown in FIG.

図３及び図４に示す刃物１０は鋼またはステンレス鋼で作られており、その刃部分１１は、図４に示すように、凸部１２と凹部１３とが交互に連続して形成される鋸状刃となっている。 The blade 10 shown in FIGS. 3 and 4 is made of steel or stainless steel, and the blade portion 11 is a saw in which convex portions 12 and concave portions 13 are alternately and continuously formed as shown in FIG. It is a blade.

特開２００２−２４８２７８号公報JP 2002-248278 A

図４に示すように、刃部分１１の長さ方向における凸部１２の長さｐ１と凹部１３の長さｐ２とは等しくなく、凸部１２の方が凹部１３よりも長く、あるいは、短く設定されている。 As shown in FIG. 4, the length p <b> 1 of the convex portion 12 and the length p <b> 2 of the concave portion 13 in the length direction of the blade portion 11 are not equal, and the convex portion 12 is set longer or shorter than the concave portion 13. Has been.

しかしながら、本出願人のテストの結果、凸部１２の方が凹部１３よりも長く、あるいは、短いと、次のような問題点が発生することが判明した。 However, as a result of the applicant's test, it has been found that the following problems occur when the convex portion 12 is longer or shorter than the concave portion 13.

凸部１２の方が凹部１３よりも長い場合には、硬い対象物を切断するときに、刃部分１１が対象物の表面上において滑りやすくなり、硬い対象物を上手に切断することが困難になる。 When the convex part 12 is longer than the concave part 13, when cutting a hard object, the blade part 11 becomes slippery on the surface of the object, making it difficult to cut the hard object well. Become.

逆に、凸部１２の方が凹部１３よりも短い場合には、硬い対象物を切断する際に、凸部１２に負荷がかかり過ぎることになるため、凸部１２の磨り減りが早くなり、刃部分１１の切れ味が短期間のうちに悪くなる。 On the contrary, when the convex portion 12 is shorter than the concave portion 13, when cutting a hard object, the convex portion 12 is overloaded, so that the convex portion 12 is quickly worn out. The sharpness of the blade portion 11 becomes worse in a short period of time.

（本発明の目的）
本発明はこのような従来の刃物における問題点に鑑みてなされたものであり、刃部分が早期に磨り減ることを防止でき、かつ、硬い対象物をもスムーズに切断することを可能にする刃物を提供することを目的とする。 (Object of the present invention)
The present invention has been made in view of the problems in such a conventional blade, and can prevent the blade portion from being worn out at an early stage, and can cut a hard object smoothly. The purpose is to provide.

上記の目的を達成するため、本発明は、刃部分を有する刃物であって、前記刃部分は当該刃部分の長さ方向において凸部と凹部とが交互に連続する鋸状刃をなしており、前記刃部分の長さ方向における前記凸部の長さと前記凹部の長さとは相互に等しいものである刃物を提供する。 In order to achieve the above object, the present invention is a blade having a blade portion, and the blade portion is a saw blade in which convex portions and concave portions are alternately continuous in the length direction of the blade portion. The length of the convex part and the length of the concave part in the length direction of the blade part are equal to each other.

本発明に係る刃物においては、前記刃物の両側面部には、前記刃部分の幅方向に延び、かつ、前記凹部と連続する第二凹部が形成されていることが好ましい。 In the cutter according to the present invention, it is preferable that second side recesses extending in the width direction of the blade portion and continuing to the recess are formed on both side surface portions of the cutter.

本発明に係る刃物においては、刃部分の長さ方向に形成されている凸部と凹部とは刃部分の長さ方向における長さが相互に等しくなるように設定されている。このため、硬い対象物を切断する場合であっても、刃部分が対象物の表面上において滑りやすくなることを防止することができ、その結果として、硬い対象物であっても、上手に切断することが可能になる。 In the blade according to the present invention, the convex portion and the concave portion formed in the length direction of the blade portion are set so that the lengths in the length direction of the blade portion are equal to each other. For this reason, even when cutting a hard object, the blade portion can be prevented from slipping on the surface of the object, and as a result, even a hard object can be cut well. It becomes possible to do.

さらに、凸部に負荷がかかり過ぎることがなくなるため、硬い対象物を切断する場合であっても、凸部が磨り減る期間を延ばすことができ、その結果として、刃部分の切れ味が短期間に悪くなることを防止することができる。 Furthermore, since the load on the convex portion is not excessively applied, even when a hard object is cut, the period during which the convex portion is worn down can be extended, and as a result, the sharpness of the blade portion can be shortened in a short time. It can be prevented from becoming worse.

また、図３及び図４に示すように、従来の刃物１０においては、凹部１３は刃部分１１に対して完全な切り欠きとして形成されるものであるため、凹部１３に起因して、刃部分１１、特に、凸部１２の強度が低下していた。 Further, as shown in FIGS. 3 and 4, in the conventional blade 10, the recess 13 is formed as a complete notch with respect to the blade portion 11, and therefore the blade portion is caused by the recess 13. 11, In particular, the strength of the convex portion 12 was lowered.

これに対して、刃物の両側面部に、刃部分の幅方向に延び、かつ、凹部と連続する第二凹部を形成することによって、本考案に係る刃物においては、凹部は刃部分を完全に切り欠いて形成されるものではなく、第二凹部としての窪みを形成することになるだけであるため、従来の刃物１０と比較して、刃物、特に、凸部の強度の低下の度合いを小さくすることが可能である。 On the other hand, in the blade according to the present invention, the concave portion completely cuts the blade portion by forming the second concave portion extending in the width direction of the blade portion and continuing to the concave portion on both side surface portions of the blade. Since it is not formed to be missing but only forms a recess as the second recess, the degree of reduction in the strength of the blade, particularly the protrusion, is reduced compared to the conventional blade 10. It is possible.

以下、本発明の様々な具体化を、添付図面を基に、その効果・利点と共に、詳述する。 Hereinafter, various embodiments of the present invention will be described in detail along with the effects and advantages thereof with reference to the accompanying drawings.

本発明の一実施形態に係る刃物の刃部分の一部を示す部分的平面図である。It is a partial top view which shows a part of blade part of the cutter which concerns on one Embodiment of this invention. 図１のＡ方向から見た場合の本発明の一実施形態に係る刃物の正面図である。It is a front view of the cutter which concerns on one Embodiment of this invention at the time of seeing from A direction of FIG. 従来の刃物の部分的平面図である。It is a partial top view of the conventional cutter. 図３に示された従来の刃物の部分的拡大図である。FIG. 4 is a partially enlarged view of the conventional blade shown in FIG. 3.

（実施の形態１）
図１は本発明の一実施形態に係る刃物１００の刃部分１１０の一部を示す部分的平面図であり、図２は図１のＡ方向から見た場合の刃物１００の正面図である。 (Embodiment 1)
FIG. 1 is a partial plan view showing a part of a blade portion 110 of a blade 100 according to an embodiment of the present invention, and FIG. 2 is a front view of the blade 100 when viewed from the direction A of FIG.

図１に示すように、本実施形態に係る刃物１００における刃部分１１０は刃部分１１０の長さ方向（図１の左右方向）において凸部１１１と凹部１１２とが交互に連続する鋸状刃をなしている。 As shown in FIG. 1, the blade portion 110 in the blade 100 according to the present embodiment is a saw blade in which convex portions 111 and concave portions 112 are alternately continued in the length direction of the blade portion 110 (left and right direction in FIG. 1). There is no.

刃部分１１０の長さ方向における凸部１１１の長さＬ１と刃部分１１０の長さ方向における凹部１１２の長さＬ２とは、相互に等しくなるように設定されている。 The length L1 of the convex portion 111 in the length direction of the blade portion 110 and the length L2 of the concave portion 112 in the length direction of the blade portion 110 are set to be equal to each other.

例えば、凸部１１１の長さＬ１及び凹部１１２の長さＬ２は、０．１ｍｍ乃至０．５ｍｍの範囲内において設定される。 For example, the length L1 of the convex portion 111 and the length L2 of the concave portion 112 are set within a range of 0.1 mm to 0.5 mm.

さらに、図１及び図２に示すように、刃物１００の両側面部には、刃部分１１０の幅方向に延びるとともに、凹部１１２と連続する第二凹部１１３が形成されている。第二凹部１１３は刃物１００の側面から見てほぼ逆Ｕ字型の形状をなしている。 Further, as shown in FIGS. 1 and 2, second concave portions 113 that extend in the width direction of the blade portion 110 and are continuous with the concave portions 112 are formed on both side surface portions of the blade 100. The second recess 113 has a substantially inverted U shape when viewed from the side of the blade 100.

刃部分１１０の厚みは０．５ｍｍ乃至１．０ｍｍの範囲内に設定され、凹部１１２の厚みは刃部分１１０の厚みの３５％乃至６５％の範囲内において設定される。従って、各第二凹部１１３の厚みは刃部分１１０の厚みの１７．５％乃至３２．５％の範囲内において設定される。 The thickness of the blade portion 110 is set in the range of 0.5 mm to 1.0 mm, and the thickness of the recess 112 is set in the range of 35% to 65% of the thickness of the blade portion 110. Accordingly, the thickness of each second recess 113 is set within a range of 17.5% to 32.5% of the thickness of the blade portion 110.

このような構造を有する本実施形態に係る刃物１００は、次のような機能を奏する。 The blade 100 according to this embodiment having such a structure has the following functions.

本実施形態に係る刃物１００においては、刃部分１１０の長さ方向に形成されている凸部１１１と凹部１１２とは刃部分１１０の長さ方向における長さが相互に等しくなるように設定されている。このため、刃物１００で硬い対象物を切断する場合であっても、刃部分１１０が対象物の表面上において滑りやすくなることを防止することができ、その結果として、硬い対象物であっても、上手に切断することが可能になる。 In the blade 100 according to the present embodiment, the convex portion 111 and the concave portion 112 formed in the length direction of the blade portion 110 are set so that the lengths in the length direction of the blade portion 110 are equal to each other. Yes. For this reason, even when cutting a hard object with the blade 100, it is possible to prevent the blade portion 110 from slipping on the surface of the object, and as a result, even if it is a hard object It becomes possible to cut well.

さらに、刃部分１１０の凸部１１１に負荷がかかり過ぎることがなくなるため、刃物１００で硬い対象物を切断する場合であっても、凸部１１１が磨り減る期間を延ばすことができ、その結果として、刃部分１１０の切れ味が短期間に悪くなることを防止することができる。 Furthermore, since the load on the convex portion 111 of the blade portion 110 is not excessively applied, even when the hard object is cut with the blade 100, the period during which the convex portion 111 is worn down can be extended, and as a result The sharpness of the blade portion 110 can be prevented from becoming worse in a short time.

図３及び図４に示すように、従来の刃物１０においては、凹部１３は刃部分１１に対して完全な切り欠きとして形成される。このため、凹部１３に起因して、刃部分１１、特に、凸部１２の強度が低下していた。 As shown in FIGS. 3 and 4, in the conventional blade 10, the recess 13 is formed as a complete notch with respect to the blade portion 11. For this reason, due to the recess 13, the strength of the blade portion 11, particularly the protrusion 12, has been reduced.

これに対して、本実施形態に係る刃物１００においては、凹部１１２は刃部分１１０を完全に切り欠いて形成されるものではなく、第二凹部１１３としての窪みを形成するだけであるため、従来の刃物１０と比較して、刃物１００、特に、凸部１１１の強度の低下の度合いを小さくすることが可能である。 On the other hand, in the cutter 100 according to the present embodiment, the concave portion 112 is not formed by completely cutting out the blade portion 110, but merely forms a depression as the second concave portion 113. Compared with the above-mentioned blade 10, it is possible to reduce the degree of strength reduction of the blade 100, in particular, the convex portion 111.

なお、本実施形態に係る刃物１００においては、第二凹部１１３は刃物１００の両側面部に形成されるものとしているが、第二凹部１１３は刃物１００の何れか一方の側面部にのみ形成することも可能である。 In the cutter 100 according to the present embodiment, the second recess 113 is formed on both side portions of the cutter 100, but the second recess 113 is formed only on any one side portion of the cutter 100. Is also possible.

（付記）
以上、本発明の実施の形態を詳細に開示し記述したが、以上の記述は本発明の適用可能な局面を例示したものであって、本発明はこれに限定されるものではない。即ち、記述した局面に対する様々な修正及び／又は変形例を、この発明の範囲から逸脱することの無い範囲内で考えることが可能である。 (Appendix)
While the embodiments of the present invention have been disclosed and described in detail above, the above description exemplifies aspects to which the present invention can be applied, and the present invention is not limited thereto. That is, various modifications and / or variations on the described aspects can be considered without departing from the scope of the invention.

１００ 本発明の一実施形態に係る刃物
１１０ 刃部分
１１１ 凸部
１１２ 凹部
１１３ 第二凹部
100 Blade 110 according to an embodiment of the present invention Blade portion 111 Convex part 112 Concave part 113 Second concave part

Claims (2)

刃部分を有する刃物であって、
前記刃部分は当該刃部分の長さ方向において凸部と凹部とが交互に連続する鋸状刃をなしており、
前記刃部分の長さ方向における前記凸部の長さと前記凹部の長さとは相互に等しいものである刃物。 A blade having a blade portion,
The blade portion is a saw blade in which convex portions and concave portions are alternately continuous in the length direction of the blade portion,
The blade in which the length of the convex portion and the length of the concave portion in the length direction of the blade portion are equal to each other. 前記刃物の両側面部の少なくとも一方には、前記刃部分の幅方向に延び、かつ、前記凹部と連続する第二凹部が形成されていることを特徴とする請求項１に記載の刃物。
2. The blade according to claim 1, wherein at least one of both side surfaces of the blade is formed with a second recess that extends in a width direction of the blade and is continuous with the recess.
JP2014205562A 2014-10-06 2014-10-06 Knife Active JP5914611B2 (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB391947A (en) * 1932-02-27 1933-05-11 Joseph Harold Thorpe Improvements in or relating to table and like knives
GB485950A (en) * 1937-02-15 1938-05-27 John Derby Improvements in knives
GB681920A (en) * 1950-02-23 1952-10-29 Harold Drew Improvements in or relating to knives
JPS5495454U (en) * 1977-12-15 1979-07-05
JPS63166166U (en) * 1987-04-17 1988-10-28
JP2002248278A (en) * 2001-02-23 2002-09-03 Sekikanetsugu Hamono Kk Cutter
JP2005074221A (en) * 2003-09-01 2005-03-24 Wmf Wuerttembergische Metallwarenfab Ag Knife

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB391947A (en) * 1932-02-27 1933-05-11 Joseph Harold Thorpe Improvements in or relating to table and like knives
GB485950A (en) * 1937-02-15 1938-05-27 John Derby Improvements in knives
GB681920A (en) * 1950-02-23 1952-10-29 Harold Drew Improvements in or relating to knives
JPS5495454U (en) * 1977-12-15 1979-07-05
JPS63166166U (en) * 1987-04-17 1988-10-28
JP2002248278A (en) * 2001-02-23 2002-09-03 Sekikanetsugu Hamono Kk Cutter
JP2005074221A (en) * 2003-09-01 2005-03-24 Wmf Wuerttembergische Metallwarenfab Ag Knife

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