JP2013052575A - Saw blade - Google Patents

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JP2013052575A
JP2013052575A JP2011191930A JP2011191930A JP2013052575A JP 2013052575 A JP2013052575 A JP 2013052575A JP 2011191930 A JP2011191930 A JP 2011191930A JP 2011191930 A JP2011191930 A JP 2011191930A JP 2013052575 A JP2013052575 A JP 2013052575A
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saw blade
shaped groove
teeth
groove bottom
plate
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Ikuo Kishimoto
伊久男 岸本
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KISHIMOTO NOKOGU SEISAKUSHO KK
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KISHIMOTO NOKOGU SEISAKUSHO KK
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Abstract

PROBLEM TO BE SOLVED: To provide a saw blade that is hard to be clogged with chip and can cut well for a long period of time.SOLUTION: This is a saw blade having two or more teeth 3 formed along one edge of a plate saw body wherein bases 3B, 3B of adjacent teeth 3, 3 are formed in a separation state through an arcuate groove bottom surface 20.

Description

本発明は、鋸刃に関する。   The present invention relates to a saw blade.

従来より、繊維の方向と直交する向きに木を切断する横挽用の鋸刃が広く用いられている（特許文献１参照）。
特許文献１記載の鋸刃は、木の繊維を切断するために、小刀状の歯を鋸身の一端縁に沿って列設していた。これらの歯は、交互に向き合っており、「なげし」と呼ばれる切刃が、鋸身を斜めから見た際にＶ字状を成す溝部を介して対面状となるように形成されていた。 Conventionally, a saw blade for horizontal grinding that cuts a tree in a direction orthogonal to the direction of fibers has been widely used (see Patent Document 1).
In the saw blade described in Patent Document 1, in order to cut the fiber of wood, the teeth of the sword are arranged along one edge of the saw blade. These teeth are alternately facing each other, and a cutting blade called “Lage” is formed so as to face each other through a V-shaped groove when the saw blade is viewed obliquely.

特開２００８−２３８４５号公報JP 2008-23845 A

しかし、従来の鋸刃は、図６及び図７に示すように、隣接する歯４３，４３の基部が、近接状に形成されていた。このＶ字状溝底部４４は、側面視に於て、なげし４７，４７が局部的に重なり合っており、木を切断するのに伴って発生する切粉が、Ｖ字状溝底部４４に入り込んで詰まり易かった。特に、樹液を多く含む生木を切断する際に、切粉と樹液が混ざり合って固まってしまい、すぐに目詰まりを起こしてしまうという欠点があった。このように、鋸刃が目詰まりを起こしてしまうと、切断途中で切り込まなくなって、作業を複数回にわたって中断して切粉を除去しなければならず、非常に面倒で作業効率を低下させる原因となっていた。   However, in the conventional saw blade, as shown in FIGS. 6 and 7, the base portions of the adjacent teeth 43 and 43 are formed in close proximity. In the V-shaped groove bottom 44, the side bars 47, 47 are locally overlapped when viewed from the side, and chips generated when cutting the wood enter the V-shaped groove bottom 44. It was easy to clog. In particular, when cutting a raw tree containing a large amount of sap, there is a drawback that the chips and sap are mixed and solidified, causing clogging immediately. In this way, if the saw blade becomes clogged, it will not be cut in the middle of cutting, and the work must be interrupted multiple times to remove the chips, which is very troublesome and reduces work efficiency. It was the cause.

そこで、本発明は、切粉が詰まりにくく切れ味が長持ちする鋸刃を提供することを目的とする。   Therefore, an object of the present invention is to provide a saw blade that is less likely to be clogged with chips and has a long sharpness.

本発明に係る鋸刃は、板状鋸身の一端縁に沿って複数の歯が列設された鋸刃であって、隣接する上記歯の基部が、円弧状溝底面を介して分離状に形成されているものである。   A saw blade according to the present invention is a saw blade in which a plurality of teeth are arranged along one edge of a plate-shaped saw blade, and the base portions of the adjacent teeth are separated from each other via an arc-shaped groove bottom surface. Is formed.

また、上記歯は、先端側なげし部・基端側なげし部を有し、隣接する上記歯に於て、基端側なげし部と先端側なげし部とが、上記円弧状溝底面を有するＵ字状溝部を介して、対面状に向き合うように配設されているものである。
また、上記歯は、その基部から頂部までの高さ寸法が４ｍｍ〜６ｍｍに設定され、上記円弧状溝底面は、その曲率半径が０．４ｍｍ〜０．８ｍｍに設定されているものである。
また、上記板状鋸身の一端縁の底面視に於て、上記Ｕ字状溝部は、ジグザグに形成されているものである。 Further, the tooth has a leading edge portion and a proximal edge portion, and in the adjacent teeth, the proximal edge portion and the distal edge portion are U-shaped having the arc-shaped groove bottom surface. It is arrange | positioned so that it may face across through a groove-shaped part.
Moreover, the height dimension from the base to the top of the tooth is set to 4 mm to 6 mm, and the curvature radius of the bottom surface of the arcuate groove is set to 0.4 mm to 0.8 mm.
In addition, the U-shaped groove is formed in a zigzag shape when viewed from the bottom of one edge of the plate-like saw blade.

本発明の鋸刃によれば、切粉が歯と歯の間に詰まらず、切粉は自動的に排出され、切れ味を良好なまま長く保つことができる。よって、木の切断作業を途中で中断することなく、連続して切り込んでいくことが可能となり、作業効率を向上できる。   According to the saw blade of the present invention, the chips are not clogged between the teeth, the chips are automatically discharged, and the sharpness can be kept long with good quality. Therefore, it is possible to continuously cut the tree without interrupting the cutting operation on the way, and work efficiency can be improved.

本発明の実施の一形態を示した側面図である。It is the side view which showed one Embodiment of this invention. 本発明の鋸刃を示した要部拡大側面図である。It is the principal part enlarged side view which showed the saw blade of this invention. 本発明の鋸刃を示した要部拡大底面図である。It is the principal part enlarged bottom view which showed the saw blade of this invention. 図３のＸ矢視図である。FIG. 4 is a view taken in the direction of arrow X in FIG. 3. 鋸刃の断面図である。It is sectional drawing of a saw blade. 従来の鋸刃を示した側面図である。It is the side view which showed the conventional saw blade. 従来の鋸刃を示した要部拡大側面図である。It is the principal part enlarged side view which showed the conventional saw blade.

以下、実施の形態を示す図面に基づき本発明を詳説する。
図１〜図３に示すように、本発明の鋸刃は、板状鋸身１の一端縁１０に沿って複数の歯３が列設された鋸刃であって、繊維の方向と直交する向きに木を切断するための横挽鋸として作製されたものである。
本発明の鋸刃は、隣接する歯３，３の基部３Ｂ，３Ｂが、円弧状溝底面２０を介して分離状に形成されている。
板状鋸身１は、図１では折畳自在な鋸を例示しており、鋼やステンレス鋼等の金属から成り、先端部から基端部までの長さ寸法Ｌが２１０ｍｍ〜２４０ｍｍに設定され、図示省略の鞘部に取着されて使用される。板状鋸身１の基端側には、鞘部枢結用のボルトを挿通するための貫通孔１１を設けている。 Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments.
As shown in FIGS. 1 to 3, the saw blade of the present invention is a saw blade in which a plurality of teeth 3 are arranged along one end edge 10 of the plate-like saw blade 1, and is orthogonal to the fiber direction. It was made as a horizontal saw for cutting wood in the direction.
In the saw blade of the present invention, the base portions 3B and 3B of the adjacent teeth 3 and 3 are formed in a separated manner via the arc-shaped groove bottom surface 20.
The plate-like saw blade 1 is illustrated as a foldable saw in FIG. 1 and is made of a metal such as steel or stainless steel, and the length L from the distal end portion to the proximal end portion is set to 210 mm to 240 mm. , Used by being attached to a sheath portion (not shown). A through hole 11 is provided on the base end side of the plate-like saw blade 1 for inserting a bolt for pivoting the sheath portion.

歯３は、先端側なげし部７Ａ・基端側なげし部７Ｂを有する両刃小刀状に形成されている。
歯３は、板状鋸身１（の長手方向）に平行な方向から見て（左右方向に）斜めに傾けて形成されたＵ字状溝部２をもって、木の繊維を切断する斜面状の先端側なげし部７Ａ・基端側なげし部７Ｂを形成している。歯３の先端縁には、上目部８が形成されている。 The teeth 3 are formed in a double-edged sword shape having a leading edge portion 7A and a proximal edge portion 7B.
The tooth 3 has a U-shaped groove portion 2 formed to be inclined obliquely (in the left-right direction) when viewed from a direction parallel to the plate-shaped saw blade 1 (longitudinal direction thereof), and has a sloped tip for cutting wood fibers. Side ridges 7A and proximal end ridges 7B are formed. An upper eye portion 8 is formed at the tip edge of the tooth 3.

図３及び図４に示すように、隣接する歯３，３に於て、基端側なげし部７Ｂと先端側なげし部７Ａとが、円弧状溝底面２０を有するＵ字状溝部２を介して対面状に向き合うように配設されている。
歯３，３の基部３Ｂ，３Ｂは、円弧状溝底面２０の幅寸法Ｗをもって離間しており、側面視（図２参照）に於て、基端側なげし部７Ｂと先端側なげし部７Ａとが、相互に重なり合うことなく形成されている。 As shown in FIG. 3 and FIG. 4, in the adjacent teeth 3, 3, the proximal side rake portion 7 </ b> B and the distal end side rake portion 7 </ b> A pass through the U-shaped groove portion 2 having the arc-shaped groove bottom surface 20. It is arranged so as to face each other in a face-to-face manner.
The base portions 3B and 3B of the teeth 3 and 3 are spaced apart by the width dimension W of the arc-shaped groove bottom surface 20, and in a side view (see FIG. 2), the base end side rake portion 7B and the tip end side rake portion 7A Are formed without overlapping each other.

図３に示す底面視に於て、Ｕ字状溝部２は、ジグザグに形成されている。
Ｕ字状溝部２は、板状鋸身１の長手方向に沿って左右交互に屈曲しつつ断続的に形成されている。言い換えると、歯３は、先端側なげし部７Ａ・基端側なげし部７Ｂを板状鋸身１の一面側に形成する表目と、他面側に形成する裏目とを、交互になるように配列している。 In the bottom view shown in FIG. 3, the U-shaped groove 2 is formed in a zigzag pattern.
The U-shaped groove portion 2 is formed intermittently while being bent alternately left and right along the longitudinal direction of the plate-like saw blade 1. In other words, the teeth 3 are configured so that the front stitches 7A and the proximal pegging portions 7B are formed on one surface side of the plate-like saw blade 1 and the back stitches formed on the other surface side alternately. Arranged.

図４に示すように、歯３は、その基部３Ｂから頂部３Ａまでの高さ寸法Ｈが４ｍｍ〜６ｍｍに設定されている。また、円弧状溝底面２０は、その曲率半径Ｒが０．４ｍｍ〜０．８ｍｍに設定されている。
歯３の高さ寸法Ｈが４ｍｍ未満であれば、切れ味が悪くなる虞れがあり、高さ寸法Ｈが６ｍｍを越えると、歯３の強度を十分に確保できない虞れがある。また、円弧状溝底面２０の曲率半径Ｒが０．４ｍｍ未満であれば、円弧状溝底面２０の幅寸法Ｗが小さくなり過ぎて歯３，３の基部３Ｂ，３Ｂの間隔を十分に確保できず、円弧状溝底面２０の曲率半径Ｒが０．８ｍｍを越えると、円弧状溝底面２０の幅寸法Ｗが大きくなり過ぎて歯３の強度を十分に確保できず、切れ味も悪くなる。 As shown in FIG. 4, the tooth 3 has a height dimension H from 4 mm to 6 mm from the base 3 </ b> B to the top 3 </ b> A. Further, the arcuate groove bottom surface 20 has a radius of curvature R set to 0.4 mm to 0.8 mm.
If the height dimension H of the tooth 3 is less than 4 mm, the sharpness may be deteriorated, and if the height dimension H exceeds 6 mm, the strength of the tooth 3 may not be sufficiently secured. Further, if the radius of curvature R of the arcuate groove bottom surface 20 is less than 0.4 mm, the width dimension W of the arcuate groove bottom surface 20 becomes too small, and a sufficient interval between the base portions 3B and 3B of the teeth 3 and 3 can be secured. If the radius of curvature R of the arc-shaped groove bottom surface 20 exceeds 0.8 mm, the width dimension W of the arc-shaped groove bottom surface 20 becomes too large, and the strength of the teeth 3 cannot be ensured sufficiently, resulting in poor sharpness.

図５に示すように、板状鋸身１は、一端縁１０の厚さ寸法ｔ２を、他端縁の厚さ寸法ｔ１よりも大きく設定し、テーパ板状に形成されている。
板状鋸身１は、他端縁の厚さ寸法ｔ１を対して、一端縁１０の厚さ寸法ｔ２を１．５倍〜２．０倍に設定し、歯３，３の頂部３Ａ，３Ａの間隔が最も広くなるように構成している。つまり、板状鋸身１は、テーパ板状に形成されることによってアサリを出している。この構成により、板状鋸身１が、木に締め付けられて挽きにくくなるのを防止し、かつ、切り口を美しく形成しつつ切断を行うことが可能である。 As shown in FIG. 5, the plate-shaped saw body 1, the thickness t 2 of the end edge 10, is set larger than the thickness t 1 of the other edge is formed in a tapered shape.
Plate saw body 1, against the thickness t 1 of the other edge, to set the thickness t 2 of the end edge 10 to 1.5 to 2.0 times, the top 3A of the tooth 3,3 , 3A is configured to be widest. That is, the plate-like saw blade 1 is formed into a taper plate shape to give a set. With this configuration, it is possible to prevent the plate-like saw blade 1 from being tightened by a tree and becoming difficult to grind, and to perform cutting while beautifully forming a cut end.

上述した本発明の鋸刃の使用方法（作用）について説明する。
本発明の鋸刃は、植木や木材等を挽くのに使用され、切断に伴って発生する切粉（おが屑）を、歯３と歯３の間のＵ字状溝部２の円弧状溝底面２０に詰まらせることなく自動的に排出しつつ切断する。特に、樹液を多く含んだ生木や軟材を挽く場合に、従来ならば複数回にわたって切粉を払う作業が必要だったところを、一気に切断することができ、例えば、直径７０ｍｍの貝塚を切断する際に、（複数回にわたって作業を中断して１分〜２分掛かっていた従来と比較して）作業時間を大幅に減少して約１５秒〜３０秒程度での切断を完了する。 The use method (action) of the above-described saw blade of the present invention will be described.
The saw blade of the present invention is used to grind planted trees, wood, and the like, and cuts (sawdust) generated along with cutting into arc-shaped groove bottom surface 20 of U-shaped groove portion 2 between teeth 3. Cut while automatically discharging without clogging. In particular, when grinding raw wood and softwood that contain a lot of sap, it was possible to cut the area where it was necessary to dispose of chips several times in the past, such as cutting a 70 mm diameter shell mound. In doing so, the work time is significantly reduced (compared to the conventional case where the work is interrupted several times and takes 1 minute to 2 minutes) to complete the cutting in about 15 seconds to 30 seconds.

以上のように、本発明に係る鋸刃は、板状鋸身１の一端縁１０に沿って複数の歯３が列設された鋸刃であって、隣接する歯３，３の基部３Ｂ，３Ｂが、円弧状溝底面２０を介して分離状に形成されているので、切粉が歯３，３の基部３Ｂ，３Ｂの間の円弧状溝底面２０に詰まらず、切粉を自動的に排出することができ、切れ味を良好なまま長く保つことができる。よって、木の切断の途中で作業を中断することなく、連続して切り込んでいくことが可能となり、作業効率を向上できる。   As described above, the saw blade according to the present invention is a saw blade in which a plurality of teeth 3 are arranged along one end edge 10 of the plate-like saw blade 1, and the base 3B of the adjacent teeth 3 and 3 is provided. Since 3B is formed in a separated shape via the arcuate groove bottom surface 20, the chips do not clog the arcuate groove bottom surface 20 between the bases 3B, 3B of the teeth 3 and 3, and the chips are automatically collected. It can be discharged and can maintain its sharpness for a long time. Therefore, it becomes possible to cut continuously without interrupting the work in the middle of cutting the tree, and work efficiency can be improved.

また、歯３は、先端側なげし部７Ａ・基端側なげし部７Ｂを有し、隣接する歯３，３に於て、基端側なげし部７Ｂと先端側なげし部７Ａとが、円弧状溝底面２０を有するＵ字状溝部２を介して、対面状に向き合うように配設されているので、非常に切れ味が鋭く、木の繊維を容易に切断することができる。特に、基端側なげし部７Ｂと先端側なげし部７Ａとが重なり合う部分が形成されないため、エッジに無駄がなく、切れ味が良い。   Further, the tooth 3 has a leading edge portion 7A and a proximal edge portion 7B. In the adjacent teeth 3 and 3, the proximal edge portion 7B and the distal edge portion 7A are arc-shaped grooves. Since it arrange | positions so that it may face each other through the U-shaped groove part 2 which has the bottom face 20, it is very sharp and can cut | disconnect a fiber of wood easily. In particular, since the portion where the base end side rake portion 7B and the tip end side rake portion 7A overlap is not formed, there is no waste in the edge and the sharpness is good.

また、歯３は、その基部３Ｂから頂部３Ａまでの高さ寸法Ｈが４ｍｍ〜６ｍｍに設定され、円弧状溝底面２０は、その曲率半径Ｒが０．４ｍｍ〜０．８ｍｍに設定されているので、非常に切れ味が良く、しかも、歯３の強度を十分に確保できる。   Further, the tooth 3 has a height H from the base 3B to the top 3A set to 4 mm to 6 mm, and the arcuate groove bottom 20 has a radius of curvature R set to 0.4 mm to 0.8 mm. Therefore, the sharpness is very good and the strength of the teeth 3 can be sufficiently secured.

また、板状鋸身１の一端縁１０の底面視に於て、Ｕ字状溝部２は、ジグザグに形成されているので、切断がスムーズかつ迅速に行え、しかも、切り口も美しい。   In addition, since the U-shaped groove 2 is formed in a zigzag in the bottom view of the one end edge 10 of the plate-like saw blade 1, cutting can be performed smoothly and quickly, and the cut end is also beautiful.

１ 板状鋸身
２ Ｕ字状溝部
３ 歯
３Ａ 頂部
３Ｂ 基部
７Ａ 先端側なげし部
７Ｂ 基端側なげし部
１０ 一端縁
２０ 円弧状溝底面
Ｈ 高さ寸法
Ｒ 曲率半径 DESCRIPTION OF SYMBOLS 1 Plate-shaped saw blade 2 U-shaped groove part 3 Teeth 3A Top part 3B Base part 7A Tip side edge part 7B Base end side edge part 10 One end edge 20 Arc-shaped groove bottom face H Height dimension R Curvature radius

Claims (4)

板状鋸身（１）の一端縁（１０）に沿って複数の歯（３）が列設された鋸刃であって、
隣接する上記歯（３）（３）の基部（３Ｂ）（３Ｂ）が、円弧状溝底面（２０）を介して分離状に形成されていることを特徴とする鋸刃。 A saw blade in which a plurality of teeth (3) are arranged along one edge (10) of the plate-like saw blade (1),
A saw blade characterized in that the bases (3B) (3B) of the adjacent teeth (3) (3) are formed in a separated manner via an arcuate groove bottom surface (20). 上記歯（３）は、先端側なげし部（７Ａ）・基端側なげし部（７Ｂ）を有し、隣接する上記歯（３）（３）に於て、基端側なげし部（７Ｂ）と先端側なげし部（７Ａ）とが、上記円弧状溝底面（２０）を有するＵ字状溝部（２）を介して、対面状に向き合うように配設されている請求項１記載の鋸刃。   The tooth (3) has a leading edge portion (7A) and a proximal edge portion (7B). In the adjacent teeth (3) and (3), the proximal edge portion (7B) The saw blade according to claim 1, wherein the leading edge portion (7A) is disposed so as to face each other through the U-shaped groove portion (2) having the arc-shaped groove bottom surface (20). 上記歯（３）は、その基部（３Ｂ）から頂部（３Ａ）までの高さ寸法（Ｈ）が４ｍｍ〜６ｍｍに設定され、上記円弧状溝底面（２０）は、その曲率半径（Ｒ）が０．４ｍｍ〜０．８ｍｍに設定されている請求項１又は２記載の鋸刃。   The tooth (3) has a height (H) from 4 mm to 6 mm from the base (3B) to the top (3A), and the arc-shaped groove bottom (20) has a radius of curvature (R). The saw blade according to claim 1 or 2, which is set to 0.4 mm to 0.8 mm. 上記板状鋸身（１）の一端縁（１０）の底面視に於て、上記Ｕ字状溝部（２）は、ジグザグに形成されている請求項２又は３記載の鋸刃。   The saw blade according to claim 2 or 3, wherein the U-shaped groove (2) is formed in a zigzag shape in a bottom view of one end edge (10) of the plate-like saw blade (1).
JP2011191930A 2011-09-02 2011-09-02 Saw blade Pending JP2013052575A (en)

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KR20170016872A (en) 2014-06-04 2017-02-14 가부시키가이샤 유에무 고교 Handsaw
KR20180043798A (en) 2015-08-26 2018-04-30 가부시키가이샤 유에무 고교 Fingernail
CN112292224A (en) * 2018-06-19 2021-01-29 森拉天时卢森堡有限公司 Saw blade

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JPH11207702A (en) * 1997-10-17 1999-08-03 Sandvik Ab Pruning saw
JP2001129801A (en) * 1999-11-09 2001-05-15 Osamu Takizawa Saw
JP2003048119A (en) * 2001-08-06 2003-02-18 Makita Corp Reciprocating cutting tool having blade fitting device
JP2011520626A (en) * 2008-05-14 2011-07-21 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング Machine tools, especially hand-held machine tools

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JPH11207702A (en) * 1997-10-17 1999-08-03 Sandvik Ab Pruning saw
JPH11179702A (en) * 1997-12-19 1999-07-06 Saboten:Kk Saw and production of saw
JP2001129801A (en) * 1999-11-09 2001-05-15 Osamu Takizawa Saw
JP2003048119A (en) * 2001-08-06 2003-02-18 Makita Corp Reciprocating cutting tool having blade fitting device
JP2011520626A (en) * 2008-05-14 2011-07-21 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング Machine tools, especially hand-held machine tools

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170016872A (en) 2014-06-04 2017-02-14 가부시키가이샤 유에무 고교 Handsaw
CN106536140A (en) * 2014-06-04 2017-03-22 Um工业株式会社 Handsaw
US10245747B2 (en) 2014-06-04 2019-04-02 U.M. Kogyo Inc. Handsaw
KR20180043798A (en) 2015-08-26 2018-04-30 가부시키가이샤 유에무 고교 Fingernail
US10414063B2 (en) 2015-08-26 2019-09-17 U.M. Kogyo Inc. Handsaw
CN112292224A (en) * 2018-06-19 2021-01-29 森拉天时卢森堡有限公司 Saw blade
US11883893B2 (en) 2018-06-19 2024-01-30 Ceratizit Luxembourg S.A.R.L. Saw blade

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