JPH04102968U - Replacement blade for cutter knife - Google Patents
Replacement blade for cutter knifeInfo
- Publication number
- JPH04102968U JPH04102968U JP1251891U JP1251891U JPH04102968U JP H04102968 U JPH04102968 U JP H04102968U JP 1251891 U JP1251891 U JP 1251891U JP 1251891 U JP1251891 U JP 1251891U JP H04102968 U JPH04102968 U JP H04102968U
- Authority
- JP
- Japan
- Prior art keywords
- blade
- vertical width
- cutter knife
- replacement blade
- replaceable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000005452 bending Methods 0.000 description 4
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Knives (AREA)
Abstract
(57)【要約】 （修正有）
【目的】カッターナイフの鋸歯替刃の、側圧によるぐら
つきを防止する。
【構成】替刃１の前半部の縦幅ａを、後半部の縦幅ｂに
比して小さくする。
(57) [Summary] (with modifications) [Purpose] To prevent the serrated blade of a cutter knife from wobbling due to lateral pressure. [Structure] The vertical width a of the front half of the replaceable blade 1 is made smaller than the vertical width b of the rear half.
Description
【０００１】0001
本考案は、職人用又は一般用に係る鋸歯カッターナイフの替刃の改良に関する 。 This invention relates to the improvement of spare blades for serrated cutter knives for craftsmen or general use. .
【０００２】0002
従来の鋸歯替刃は、図２に示したようにほぼ長方形に形成され、先端上部がや や円弧状に切除された形状となっていた。 As shown in Figure 2, conventional sawtooth replacement blades are formed into a nearly rectangular shape, with the upper tip slightly tapered. It was cut in the shape of an arc.
【０００３】0003
カッターナイフの使用中に鋸歯替刃の先端付近で替刃の片側に側圧が加わると 、替刃に曲げモーメントが生じて替刃が反る。この場合、曲げモーメントは替刃 の元に行くに従って大きくなるので、替刃の曲率は替刃の元付近で最大となる。 そのため、使用中に替刃が元付近で大きく反るために手元がぐらぐらし、いわゆ る替刃に腰のない状態となって使いずらかった。 When using a cutter knife, if lateral pressure is applied to one side of the serrated blade near the tip. , a bending moment occurs in the blade, causing it to warp. In this case, the bending moment is The curvature of the blade increases near the base of the blade, so the curvature of the blade becomes maximum near the base of the blade. As a result, during use, the replacement blade warps greatly near its origin, making it unsteady in your hand, so-called It was difficult to use the replacement blade because it was loose.
【０００４】 本考案は上述の如き従来品の欠点を除去し、腰のある替刃を提供することを目 的とする。0004 The present invention aims to eliminate the drawbacks of conventional products as described above and provide a durable replacement blade. target
【０００５】[0005]
本考案の構成は、細長く形成され、下縁に鋸歯が設けられたカッターナイフの 替刃であって、替刃のほぼ中央を境としてそれよりも前半部の縦幅は後半部の縦 幅に比して小さく形成されていることを特徴とするものである。 The structure of the present invention is a cutter knife that is elongated and has serrations on the lower edge. It is a replaceable blade, and the vertical width of the front half of the blade is approximately the same as the vertical width of the rear half of the blade. It is characterized by being formed smaller than its width.
【０００６】[0006]
次に、本考案の実施例について図面を参照して説明すると、替刃１は鋼あるい はステンレス等で細長く形成されている。下縁には、その後端部付近を少し残し 、全長に亘って鋸歯２が形成さている。替刃１はその中央付近に段差３を有し、 それよりも前半部の縦幅ａは後半部の縦幅ｂの半分程度になっている。本願の実 用新案登録請求の範囲で「前半部の縦幅は後半部の縦幅に比して小さく形成され 」というのは、前半部の縦幅ａが後半部の縦幅ｂのおよそ３分の２から３分の１ 程度ということであって、前半部の縦幅ａが鋸として機能し得ないような小さな ものを含むものではなく、またこの縦幅ａが後半部の縦幅ｂと大して変わらない ものを含むものでもない。替刃１の前半部の縦幅ａは、その前半部の全長に亘っ て一定のもののみならず、図１に示したように先細りのものも含まれる。符号４ はカッターナイフホルダーの摺動子に替刃を結合するための孔部である。 Next, an embodiment of the present invention will be described with reference to the drawings. is made of stainless steel or the like. At the bottom edge, leave a little area near the back end. , saw teeth 2 are formed over the entire length. The spare blade 1 has a step 3 near its center, Rather, the vertical width a of the first half is approximately half the vertical width b of the second half. The fruit of the original prayer In the scope of the patent registration request, ``the vertical width of the first half is smaller than the vertical width of the second half.'' ” means that the vertical width a of the first half is approximately two-thirds to one-third of the vertical width b of the second half. The vertical width a of the front half is so small that it cannot function as a saw. It does not contain anything, and the vertical width a is not much different from the vertical width b of the second half. It does not contain anything. The vertical width a of the front half of the replaceable blade 1 extends over the entire length of the front half. It includes not only those with a constant shape but also those with a tapered shape as shown in FIG. code 4 is a hole for connecting a replaceable blade to the slider of the cutter knife holder.
【０００７】[0007]
本考案の構成は以上の如きものであって、替刃１のほぼ中央を境としてそれよ りも前半部の縦幅ａは、後半部の縦幅ｂに比して小さく形成されている。替刃１ の先端付近で片側に側圧が加わった場合の替刃の曲率は、替刃の曲げ剛性ＥＩ（ Ｅは替刃の縦弾性係数、Ｉは替刃の断面二次モーメント）に反比例し、断面二次 モーメントは替刃の縦幅の三乗に比例するので、替刃の前半部は後半部に比して 曲がりやすくなるから、本考案では使用中に替刃の前半部が曲がっても、後半部 はそれに比してわずかに曲がるだけである。この結果、本考案の替刃は元部分の 曲がりの少ない、腰のある替刃となり、作業がしやすいという効果を得ることが できる。 The configuration of the present invention is as described above. The vertical width a of the front half of the rim is smaller than the vertical width b of the rear half. Spare blade 1 When lateral pressure is applied to one side near the tip of the blade, the curvature of the blade is determined by the bending rigidity EI ( E is the longitudinal elastic modulus of the replaceable blade, I is the second moment of area of the replaceable blade), and The moment is proportional to the cube of the vertical width of the blade, so the front half of the blade is smaller than the second half. This makes it easier to bend, so even if the front half of the blade bends during use, the second half will not bend. is only slightly curved compared to that. As a result, the replaceable blade of this invention has a The blade has a firmer shape with less bending, making it easier to work with. can.
【図面の簡単な説明】[Brief explanation of drawings]
【図１】 本考案の正面図[Figure 1] Front view of the present invention
【図２】 従来の替刃の正面図[Figure 2] Front view of a conventional replaceable blade
１ 替刃 ２ 鋸歯 ３ 段差 ４ 孔部 1 Spare blade 2 Sawtooth 3 steps 4 Hole
Claims (1)
たカッターナイフの替刃であって、替刃のほぼ中央を境
としてそれよりも前半部の縦幅は後半部の縦幅に比して
小さく形成されていることを特徴とするカッターナイフ
の替刃Claim 1: A replaceable blade for a cutter knife that is elongated and has serrations on the lower edge, the vertical width of the front half of the blade being approximately at the center of the blade, which is proportional to the vertical width of the rear half of the blade. A spare blade for a cutter knife characterized by its small size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991012518U JPH077883Y2 (en) | 1991-02-15 | 1991-02-15 | Spare blade for cutter knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991012518U JPH077883Y2 (en) | 1991-02-15 | 1991-02-15 | Spare blade for cutter knife |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04102968U true JPH04102968U (en) | 1992-09-04 |
| JPH077883Y2 JPH077883Y2 (en) | 1995-03-01 |
Family
ID=31746498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1991012518U Expired - Lifetime JPH077883Y2 (en) | 1991-02-15 | 1991-02-15 | Spare blade for cutter knife |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH077883Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50113665U (en) * | 1974-12-30 | 1975-09-17 | ||
| JPS61194480U (en) * | 1985-05-25 | 1986-12-03 |
-
1991
- 1991-02-15 JP JP1991012518U patent/JPH077883Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50113665U (en) * | 1974-12-30 | 1975-09-17 | ||
| JPS61194480U (en) * | 1985-05-25 | 1986-12-03 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH077883Y2 (en) | 1995-03-01 |
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