JPH081605A - Hand saw - Google Patents

Abstract

PURPOSE:To provide a hand saw which can simply operate, and has smooth feel of sawing and sufficient sharpness of longitudinal and oblique sawing. CONSTITUTION:Lateral sawing rear sawteeth 1 having an angle a with respect to a sawing direction 10 and lateral sawing front sawteeth 2 having an angle betato the direction 10 at the opposite side are alternately arranged at a predetermined pitch P. A rake sawteeth 3 to be formed at the parallel sides of the angle alpha or beta are arranged continuously to the front sawteeth 1 or the rear sawteeth 2, and can be arranged at a part corresponding to the pitch P of the sawteeth 1 or 2. Further, the rake sawteeth can be formed merely by continuing twice of working the angle alpha or beta by a tool of V-shaped horizon wheel for working the front or rear sawteeth.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、業務用又は家庭用の手
引き鋸であって、柄の先端に取り付けられた刀身の少な
くとも一方に所定の鋸歯が設けられており、特に、木目
に対する横引きの切れ味だけではなく、縦引きや斜め引
きにも切れ味を発揮できる手引き鋸に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hand-operated or household hand-operated saw, in which at least one of the blades attached to the tip of the handle is provided with predetermined saw teeth, and in particular, horizontal sawing for wood grain. Not only the sharpness of the hand, but also the hand saw that can show the sharpness in vertical and diagonal pulls.

【０００２】[0002]

【従来の技術】この種の手引き鋸の代表例は、刀身の両
側に鋸歯が設けられた両刃であって、一方の鋸歯に横引
き歯が設けられ、他方の鋸歯には縦引き歯が設けられた
ものがある。この両刃の手引き鋸は両側に鋸歯があるた
め、製造コストが高くなり、使い勝手もよくない。2. Description of the Related Art A typical example of this type of hand-operated saw is a double-edged blade having saw blades on both sides of a blade, one saw tooth having a lateral pulling tooth and the other saw tooth having a vertical pulling tooth. There is one This double-edged manual saw has saw teeth on both sides, resulting in high manufacturing cost and poor usability.

【０００３】そこで、刀身の片側に鋸歯が設けられた片
刃であって、この鋸歯として横引き歯を配設し、この横
引き歯に縦引き歯を混在させ、木目に対する横引きの切
れ味だけではなく、縦引きや斜め引きにも切れ味を発揮
できる手引き鋸が実開平３−１２１８０２号公報に開示
されている。この横引き歯と縦引き歯の形状は、両刃に
設けられるものと同じ形状のものである。Therefore, in a single-edged blade having saw blades on one side of the blade, a horizontal pulling tooth is provided as the saw tooth, and a vertical pulling tooth is mixed with the horizontal pulling tooth, so that the sharpness of the horizontal pulling with respect to the wood grain is not sufficient. However, a hand-saw that can exhibit sharpness even in vertical or diagonal pull is disclosed in Japanese Utility Model Laid-Open No. 3-121802. The lateral pulling teeth and the vertical pulling teeth have the same shapes as those provided on the two blades.

【０００４】また、刀身の片側の鋸歯に設けられ横引き
歯の一部について先端形状を変えて、のみの如き形状に
することも行われている。Further, it is also practiced to change the tip shape of a part of the lateral pulling teeth provided on the saw teeth on one side of the blade to form a chisel like shape.

【０００５】[0005]

【発明が解決しようとする課題】実開平３−１２１８０
２号公報に開示の手引き鋸は、形状が全く異なる横引き
歯と縦引き歯が混在しているため、加工工程が複雑にな
り、コトス高になる。また、両刃における歯をそのまま
の形状で混在させると、密なピッチの横引き歯にの間に
粗なピッチの縦引き歯が混じることになる。横引き歯と
縦引き歯のピッチを合わせることも考えられるが、ピッ
チ合わせは現実問題として難しく、小さい歯になるか、
根本が狭い歯になり、鋸を引く感覚にムラが生じる。[Problems to be Solved by the Invention]
The manual saw disclosed in Japanese Patent No. 2 has a mixture of horizontal pulling teeth and vertical pulling teeth having completely different shapes, which complicates the working process and increases the cost. Further, if the teeth of both blades are mixed in the same shape, the vertical pulling teeth of a coarse pitch are mixed between the horizontal pulling teeth of a fine pitch. It is possible to match the pitch of the horizontal pulling teeth and the vertical pulling teeth, but pitch matching is difficult as a practical problem, whether it will be a small tooth,
The root becomes a narrow tooth, and the feeling of sawing becomes uneven.

【０００６】横引き歯の一部の先端形状を変更するもの
は、変更した歯先で切る部分が歯幅の一部になり、縦引
きや斜め引きにも切れ味も不十分である。In the case where the tip shape of a part of the lateral pulling tooth is changed, the portion cut by the changed tooth tip becomes a part of the tooth width, and the vertical pulling, diagonal pulling and sharpness are insufficient.

【０００７】本発明は、従来の技術の有するこのような
問題点に鑑みてなされたものであり、その目的とすると
ころは、加工が簡単にでき、鋸を引く感覚がスムーズで
あり、縦引きや斜め引きに対する切れ味も充分な手引き
鋸を提供することにある。The present invention has been made in view of the above problems of the prior art. The object of the present invention is that the processing is easy, the sawing feeling is smooth, and the vertical drawing is performed. It is to provide a hand-saw that has sufficient sharpness for diagonal pulling.

【０００８】[0008]

【課題を解決するための手段】上記目的を達成する請求
項１記載の手引き鋸は、鋸を引く方向に対する角度がα
の横引き用の裏目と、鋸を引く方向に対して前記角度α
と反対側における角度がβの横引き用の表目とを交互に
所定ピッチで配設し、前記裏目又は表目に続いて、前記
角度α又は角度βの平行な辺で形成されるすくい目を配
設したものである。According to a first aspect of the present invention, there is provided a manual saw as set forth in claim 1, wherein the angle with respect to the sawing direction is α.
For the horizontal pulling of the saw and the angle α with respect to the sawing direction
And the sideways facing surface having an angle β on the opposite side are alternately arranged at a predetermined pitch, and, following the back or front side, a rake formed by parallel sides of the angle α or the angle β. Is provided.

【０００９】また、請求項１記載の如く、前記すくい目
は前記裏目及び表目に対して所定高さだけ低くして配設
されているものが好ましい。Further, as described in claim 1, it is preferable that the rakes are arranged at a predetermined height lower than the back stitches and the front stitches.

【００１０】また、請求項２記載の如く、前記すくい目
は角度αで形成されるものと角度βで形成されるものと
が交互に所定間隔で配設されているものが好ましい。Further, as described in claim 2, it is preferable that the rakes are formed such that those formed at an angle α and those formed at an angle β are alternately arranged at predetermined intervals.

【００１１】[0011]

【作用】請求項１記載の発明において、横引き用の裏目
と表目は小刀を背中合わせに交互に並べたような刃であ
り、繊維を切断し、すくい目は斜めノミのような刃であ
り、切り屑をすくいとる。このすくい目は角度α又は角
度βの平行な辺で形成されるため、裏目又は表目の所定
ピッチに相当する部分に配設でき、更に表目や裏目を加
工するＶ型ホライゾンホイル等の工具による角度α又は
角度βの加工を２回続けるだけですくい目が形成され
る。In the invention according to claim 1, the back stitches and front stitches for horizontal pulling are blades in which swords are alternately arranged back-to-back, the fibers are cut, and the rakes are diagonal chisel-like blades. , Scoop up the chips. Since the rake is formed by parallel sides of the angle α or the angle β, it can be arranged at a portion corresponding to a predetermined pitch of the back stitch or the front stitch, and a tool such as a V-shaped horizon wheel for processing the front stitch or the back stitch. The rake line is formed only by continuing to process the angle α or the angle β by 2 times.

【００１２】請求項２記載の発明において、すくい目の
高さが低くなることによって横引き目が負けることな
い。According to the second aspect of the present invention, since the height of the rake is reduced, the lateral pulling eye is not lost.

【００１３】請求項３記載の発明において、角度αと角
度βのすくい目の角度が交互に配設されることによっ
て、引く方向と直角な方向の分力が相殺される。In the third aspect of the present invention, the rake angles of the angle α and the angle β are alternately arranged, so that the component force in the direction perpendicular to the pulling direction is offset.

【００１４】[0014]

【実施例】以下、本発明の実施例を図面を参照しつつ説
明する。図１は本発明の手引き鋸の鋸歯の形状を示す図
であり、図１（ａ）は正面図、図１（ｂ）は上面図、図
１（ｃ）はＡから見た側面図である。Embodiments of the present invention will be described below with reference to the drawings. 1A and 1B are views showing the sawtooth shape of the hand saw according to the present invention. FIG. 1A is a front view, FIG. 1B is a top view, and FIG. 1C is a side view seen from A. .

【００１５】図１（ａ）において、１ａ，１ｂ，１ｃ，
１ｄは裏目、２ａ，２ｂ，２ｃ，２ｄ，２ｅは表目、表
目２ａと裏目１ａとの間及び裏目１ｄと表目２ｅとの間
に配設されているのがすくい目３ａ，３ｂである。すく
い目３ａ，３ｂの間の裏目１ａ〜１ｄと表目２ｂ〜２ｄ
とは所定ピッチＰで交互に配設されている。この裏目１
ａ〜１ｄは鋸を引く方向１０に対して角度αで削り込ま
れ、表目２ｂ〜２ｄは鋸を引く方向１０に対して角度α
と反対側に角度βで削り込まれた従来の横引き歯と同じ
構造である。この裏目１及び表目２の頂上は刀身幅の中
央に向かって斜めに削り落とされた上目１１となってお
り、それぞれ削り刃１２と天刃１３とが形成されてい
る。In FIG. 1A, 1a, 1b, 1c,
1d is the back stitch, 2a, 2b, 2c, 2d and 2e are the front stitches, and the scoops 3a and 3b are disposed between the front stitch 2a and the back stitch 1a and between the back stitch 1d and the front stitch 2e. is there. Back stitches 1a to 1d and front stitches 2b to 2d between the rakes 3a and 3b
And are alternately arranged at a predetermined pitch P. This back 1
a to 1d are cut at an angle α with respect to the sawing direction 10, and the stitches 2b to 2d are angled with respect to the sawing direction 10 by an angle α.
It has the same structure as a conventional horizontal pulling tooth that is carved at an angle β on the opposite side. The tops of the back stitches 1 and the front stitches 2 are upper stitches 11 that are cut off obliquely toward the center of the width of the blade, and a sharpening blade 12 and a top blade 13 are formed respectively.

【００１６】すくい目３ｂは裏目１ｄの鋸を引く方向１
０に続けて設けられたものであり、角度αの平行な２本
線ａ，ｂと刀身の側面ｃ，ｄの平行四辺形断面を有する
ものが鋸を引く方向１０に傾けて突き出した形状のもの
である。このすくい目３ｂの上端は斜めに削られ、斜め
になったノミの如きすくい刃１４が形成されている。こ
のすくい刃１４は図１（ｃ）の如く刀身の全幅に及ぶ真
っ直ぐな刃であり、斜めのノミに似た形状である。また
すくい目の高さは裏目及び表目の天刃１３より間隔εだ
け低くなっている。また、このすくい目３ｂは裏目１ｄ
と表目２ｅの間隔（Ｐ×２）の間に位置しており、すく
い目を裏目及び表目と同様に略等ピッチＰで配設されて
いる。The rake 3b is the direction 1 in which the saw of the back 1d is pulled.
0 has a parallelogram cross section of two parallel lines a and b with an angle α and side faces c and d of the blade, and has a shape protruding inclining in the sawing direction 10. Is. The upper end of the rake 3b is cut obliquely to form an inclined chisel-like rake blade 14. The scooping blade 14 is a straight blade extending over the entire width of the blade as shown in FIG. 1C, and has a shape similar to an oblique chisel. Further, the height of the rake is lower than that of the top blades 13 of the back and front sides by an interval ε. Also, this rake 3b is the back lining 1d
And the front face 2e is located between them (P × 2), and the rakes are arranged at substantially the same pitch P as the back stitch and the front face.

【００１７】すくい目３ａは表目２ａの鋸を引く方向１
０に続けて設けられたものであり、角度αが角度βにな
ること以外はすくい目３ｂと同様の形状である。すなわ
ち、角度βのすくい目と角度βのすくい目とが交互に配
設され、すくい目の間に７本の裏目及び表目が配設され
る構造になっている。さらに、鋸を引く方向ａにおい
て、すくい目３ａの両側でも表目２ａ及び裏目１ａの順
であり、すくい目３ｂの両側も裏目１ｄ及び表目２ｅの
順であり、表目２ａ〜２ｅ及び裏目１ａ〜１ｄは全体と
してみても交互に配設されている。The rake 3a is the direction 1 in which the saw of the front 2a is pulled.
It is provided following 0, and has the same shape as the rake 3b except that the angle α becomes the angle β. That is, a rake with an angle β and a rake with an angle β are alternately arranged, and seven back and front stitches are arranged between the rakes. Further, in the sawing direction a, the front side 2a and the back side 1a are in the order on both sides of the rake 3a, and the both sides of the rake 3b are also the side 1d and the side 2e, and the sides 2a to 2e and the back side 1a. 1a to 1d are arranged alternately as a whole.

【００１８】つぎに、図２及び図３により、上述した構
造の手引き鋸の加工方法を説明する。使用される工具は
図３のホライゾンホイル２１であり、ＮＣ機械でホライ
ゾンホイル２１の傾きを変えて刀身に切り込むことで行
われる。Next, referring to FIGS. 2 and 3, a method of processing the hand-operated saw having the above structure will be described. The tool used is the horizon wheel 21 of FIG. 3, and it is performed by changing the inclination of the horizon wheel 21 with an NC machine and cutting it into the blade.

【００１９】図３（ａ）は角度βのすくい目の配設間隔
で第１切り込み２２を入れた状態を示している。図３
（ｂ）は切り込み２２の間であって角度αのすくい目の
配設間隔で第２切り込み２３を入れた状態を示してい
る。FIG. 3A shows a state in which the first notches 22 are formed at intervals of the rakes having the angle β. FIG.
(B) shows a state in which the second notches 23 are made between the notches 22 and at intervals of the rakes having the angle α.

【００２０】図３（ｃ）は第１切り込み２２と第２切り
込み２３との間に、角度βの第３切り込み２４を間隔
（Ｐ×２）で入れた状態を示している。そして、第１切
り込み２２と第３切り込み２４によってすくい目に相当
する部分が形成され、第２切り込み２３と第３切り込み
２４とで表目に相当する部分が形成される。図３（ｄ）
は第３切り込み２４の間であって角度αの第４切り込み
２５を間隔（Ｐ×２）で入れた状態を示す。この第４切
り込み２５と第２切り込み２３によってすくい目に相当
する部分が形成され、第４切り込み２５と第３切り込み
２４によって、裏目と表目の交互に相当するものが形成
される。FIG. 3C shows a state in which the third notch 24 having the angle β is formed between the first notch 22 and the second notch 23 at an interval (P × 2). Then, the first cut 22 and the third cut 24 form a portion corresponding to the rake, and the second cut 23 and the third cut 24 form a portion corresponding to the front cut. Figure 3 (d)
Indicates a state in which the fourth notches 25 having the angle α are provided at intervals (P × 2) between the third notches 24. The fourth notch 25 and the second notch 23 form a portion corresponding to the rake, and the fourth notch 25 and the third notch 24 form the portion corresponding to the alternating back stitch and front stitch.

【００２１】図３（ｅ）は裏目に対する上目の一斉加工
であり、同時に裏目と同じ角度αを有するすくい目の上
目も加工される。図３（ｆ）は表目に対する上目の一斉
加工であり、同時に表目と同じ角度βを有するすくい目
の上目も加工される。このように、表目及び裏目を加工
するのと同じ工具を用いて、本発明の鋸歯が形成され
る。FIG. 3 (e) shows the simultaneous processing of the upper stitches for the back stitch, and at the same time, the upper stitches of the rake having the same angle α as the back stitch are also worked. FIG. 3 (f) shows simultaneous machining of the upper stitches for the front stitches, and at the same time, the upper stitches of the rake having the same angle β as the front stitches are also worked. In this way, the saw tooth of the present invention is formed using the same tool for machining the front and back stitches.

【００２２】さらに、図１及び図４により、本発明の鋸
歯による木の切断状態を説明する。図１の表目１と裏目
２とは小刀状の刃を持つ目が交互左右に向かい合って並
んだ横引き歯となっており、木目に対して横引きする場
合、上目の削り刃で削り取られたおが屑が鋸の前後運動
の際木材の外側へかきだされる。図１のすくい目３はノ
ミを斜めにしたような歯になっており、図４の如く、表
目１及び裏目２で削り取られた残りの山をすくい目がカ
ンナのように削り、そのおが屑が鋸の前後運動の際木材
の外側へかきだされる。最近多くなった合板や集成材を
切る場合や、剪定時に切る節の場合のように、木目が一
様でない節を切る場合に、優れた切れ味を発揮する。Further, referring to FIG. 1 and FIG. 4, the cutting state of the tree with the saw teeth of the present invention will be described. The front stitch 1 and the back stitch 2 in FIG. 1 are lateral pulling teeth in which eyes having a knife-like blade are alternately arranged facing each other on the left and right. When pulling laterally with respect to wood grain, it is scraped off with a sharpening blade of the upper eye. Sawdust is scraped out of the wood during the saw's back and forth movement. The rakes 3 in Fig. 1 have teeth with a slanting fleas. Is squeezed out of the wood during the saw's back and forth movement. It excels in sharpness when cutting plywood or laminated wood, which has increased in number recently, or when cutting a node with uneven wood grain, such as a node that is cut during pruning.

【００２３】また、すくい目のが表目や裏目と同じよう
なピッチで配設することができるため、鋸を引く感覚に
違和感がなく、スムーズに引くことができる。角度αの
表目と角度βの裏目の交互配置、及び角度αと角度βの
すくい目の交互配置で、刀身の幅方向の力もバランス
し、スムーズに鋸を引くことができる。Further, since the rakes can be arranged at the same pitch as the front stitches and the back stitches, there is no discomfort in the sense of pulling the saw and it is possible to pull smoothly. By alternately arranging the front of the angle α and the back of the angle β, and the arranging of the rake of the angle α and the angle β, the force in the width direction of the blade is balanced and the saw can be smoothly drawn.

【００２４】なお、すくめ目の角度αと角度βの交互配
置は必須ではなく、角度α又は角度βのものだけを配設
することもできる。すくめ目は表目と裏目の間隔（Ｐ×
２）の間に略等ピッチＰで配置することが好ましいが、
間隔（Ｐ×２）より多少はずれた間隔に配置されるすく
い目であってもよい。要は、すくい目が裏目の角度α又
は表目の角度βの平行な辺で形成されることが重要であ
って、間隔の調整が可能である。また、表目と裏目とす
くい目の比率も図示のように、７対１に限らず、使用目
的に応じて１〜２０対１の範囲で自在に変化させること
ができる。更に、角度αと角度βも鋸の使用目的に応じ
て、種々の角度が選定される。It should be noted that the alternating arrangement of the angle α and the angle β is not essential, and only the angle α or the angle β may be provided. Spacing is the distance between the front and back eyes (P ×
It is preferable to arrange them at a substantially equal pitch P between 2),
It may be a rake which is arranged at a distance slightly apart from the distance (P × 2). The point is that it is important that the rake line is formed by parallel sides of the back surface angle α or the front surface angle β, and the interval can be adjusted. Further, the ratio of the front stitch, the back stitch and the rake is not limited to 7: 1 as shown in the figure, and can be freely changed within the range of 1 to 20: 1 according to the purpose of use. Further, as the angles α and β, various angles are selected according to the purpose of use of the saw.

【００２５】[0025]

【発明の効果】請求項１記載の手引き鋸は、横引き用の
裏目と表目に続いてすくい目を配設したものであり、合
板の切断や果樹の剪定などのように木目に対して直角だ
けではなく、同方向や斜め方向に切ることができる。ま
た、すくい目が横引き目と略同ピッチで配設されること
で、手引き時の感触が一定になる。特に優れた効果は、
表目や裏目を加工するＶ型ホライゾンホイル等の工具に
よる角度α又は角度βの加工を２回続けるだけですくい
目が形成されることにより、特別の工具を用いることな
く、横引き用工具で加工する順番を変えるだけでよく、
安価で優れた手引き鋸が簡単に製造できるという効果で
ある。The hand saw according to the first aspect of the present invention is provided with a back stitch for horizontal pulling and a rake line following the front stitch, and for cutting wood such as cutting plywood and pruning fruit trees. You can cut not only at right angles but also in the same direction or diagonally. Further, since the rakes are arranged at substantially the same pitch as the laterally-pulled eyes, the feel at the time of pulling becomes constant. Especially good effect is
It is possible to use a horizontal pulling tool without using a special tool because the rake line is formed only by continuing to process the angle α or the angle β twice with a tool such as a V-type horizon wheel that processes the front and back stitches. You only have to change the processing order,
This is an effect that an excellent manual saw can be easily manufactured at low cost.

【００２６】請求項２記載の手引き鋸は、すくい目の高
さが低くなっており横引き目が負けることないため、手
引き鋸を引くときに必要な押さえ込み力が少なくて済む
という効果を奏する。In the hand saw according to the second aspect of the present invention, since the height of the rake is low and the side eye is not defeated, the holding force required when pulling the hand saw is small.

【００２７】請求項３記載の手引き鋸は、角度αと角度
βのすくい目の角度が交互に配設されることによって、
引く方向と直角な方向の分力が相殺するため、鋸をスム
ーズに引くことができる。According to the third aspect of the present invention, in the hand saw, the rake angles of the angle α and the angle β are alternately arranged.
Since the component forces in the direction perpendicular to the pulling direction cancel each other out, the saw can be pulled smoothly.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の手引き鋸の鋸歯の形状を示す図であ
る。FIG. 1 is a view showing the shape of saw teeth of a manual saw according to the present invention.

【図２】本発明の手引き鋸の鋸歯の加工工程を示す図で
ある。FIG. 2 is a diagram showing a processing step of saw teeth of the hand-saw according to the present invention.

【図３】鋸歯の加工に用いられる工具の断面図である。FIG. 3 is a cross-sectional view of a tool used for processing saw teeth.

【図４】本発明の手引き鋸によって木を切る状態を示す
図である。FIG. 4 is a view showing a state in which a tree is cut by the manual saw according to the present invention.

【符号の説明】[Explanation of symbols]

１ 表目 ２ 裏目 ３ すくい目 １０ 鋸を引く方向 1 table 2 back line 3 rake 10 direction to draw saw

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 鋸を引く方向に対する角度がαの横引き
用の裏目と、鋸を引く方向に対して前記角度αと反対側
における角度がβの横引き用の表目とを交互に所定ピッ
チで配設し、前記裏目又は表目に続いて、前記角度α又
は角度βの平行な辺で形成されるすくい目を配設したこ
とを特徴とする手引き鋸。1. A predetermined crossing back stitch having an angle α with respect to the sawing direction and a side stitch having an angle β on the side opposite to the angle α with respect to the sawing direction are alternately defined. A hand-saw, wherein the saws are arranged at a pitch, and a rake formed by parallel sides of the angle α or the angle β is arranged following the back stitch or the front stitch. 【請求項２】 前記すくい目は前記裏目及び表目に対し
て所定高さだけ低くして配設されている請求項１記載の
手引き鋸。2. The hand saw according to claim 1, wherein the rake line is arranged lower than the back line and the front line by a predetermined height. 【請求項３】 前記すくい目は角度αで形成されるもの
と角度βで形成されるものとが交互に配設されている請
求項１又は２記載の手引き鋸。3. The hand-saw according to claim 1, wherein the rakes are alternately formed with an angle α and an angle β.