JPH0464401A

JPH0464401A - Saw

Info

Publication number: JPH0464401A
Application number: JP17625090A
Authority: JP
Inventors: Akira Aizawa; 相沢　明
Original assignee: DAIKICHIDOU KK
Current assignee: DAIKICHIDOU KK
Priority date: 1990-07-05
Filing date: 1990-07-05
Publication date: 1992-02-28

Abstract

PURPOSE:To obtain the saw without necessity of backing metal, while the width of set is small and its cut surface is fine by forming such a saw-plate that it becomes thinner in the direction toward saw-teeth at the adjacency of the border with the saw-teeth. CONSTITUTION:In the saw in which a plurality of saw-teeth 2 are provided at the edge of at least one side of a saw-plate 1 and then each saw teeth 2 is alternately bent a little left and right and is set, the saw-plate 1 is so formed that the thickness of said plate becomes thinner in the direction toward the saw-teeth at the adjacency of the border with the saw-teeth. Since the thickness of the root part of each saw-tooth is small, the width (a) of the set may be made small. Consequently, in spite of the relatively large thickness of the saw plate 1, the same width of the set as that of the thin saw-plate of the saw provided with backing metal may be obtained. Therefore, the cut surface of material may be made fine, and moreover since the back metal is unnecessary, even thick material may be cut.

Description

【発明の詳細な説明】（産業上の利用分野）本発明は、大工等が用いる鋸の改良に関するものである
。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to improvements in saws used by carpenters and the like.

（従来の技術）鋸は各鋸歯を交互に左右にやや曲げること（これをアサ
リという。）が必要で、アサリがないと鋸板と材料との
摩擦力が大きくなって鋸を引くことができなくなる。(Conventional technology) Saws require the saw teeth to be alternately bent slightly to the left and right (this is called a sag), and without the sag, the frictional force between the saw plate and the material increases, making it impossible to pull the saw. It disappears.

しかし、アサリの幅ａが大きいと材料の切れ口がきたな
くなる。However, if the width a of the clam is large, the cut edge of the material becomes messy.

第２図に示した従来の鋸では、鋸板の強度の関係上、鋸
板の厚みは比較的厚めになっている。また、この鋸板の
厚みは鋸歯との境目で更にやや厚めになっている。した
がって、アサリの幅ａは大きくなり、切れ口がきたなく
なるという欠点を有していた。In the conventional saw shown in FIG. 2, the thickness of the saw plate is relatively thick due to the strength of the saw plate. Also, the thickness of this saw plate is slightly thicker at the boundary with the saw teeth. Therefore, the width a of the clams becomes large, which has the disadvantage that the cut ends become unsightly.

第３図に示した従来の鋸は、背金５を装着した鋸であっ
て、背金５で強度を補強できるため鋸板６の厚みは薄く
なっている。したがって、アサリの幅ａは小さくなり材
料の切れ口がきれいになる。The conventional saw shown in FIG. 3 is a saw equipped with a back metal 5, and since the back metal 5 can reinforce the strength, the thickness of the saw plate 6 is thin. Therefore, the width a of the clam becomes smaller and the cut edge of the material becomes clean.

しかしながら、背金５があるために、厚い材料を切り落
とすことができないという欠点を有していた。However, because of the back plate 5, it has a drawback that thick material cannot be cut off.

（本発明が解決しようとする課題）本発明は、アサリの幅ａが小さく切れ口がきれいに切れ
ると共に、鋸板がやや厚めで背金を必要としない鋸を提
供することを目的とする。(Problems to be Solved by the Present Invention) An object of the present invention is to provide a saw that has a small clam width a and can cut cleanly, has a slightly thick saw plate, and does not require a back metal.

（課題を解決するための手段）本発明の構成は、鋸板１の少なくとも一方の側縁に多数
の鋸歯２が設けられ、各鋸歯２は交互に左右にやや曲げ
られてアサリ出しがされている鋸であって、鋸板１は鋸
歯２との境付近で鋸歯方向に行くに従って厚みが薄くな
るように形成されていることを特徴とするものである。(Means for Solving the Problems) The configuration of the present invention is such that a large number of saw teeth 2 are provided on at least one side edge of a saw plate 1, and each saw tooth 2 is alternately slightly bent left and right to set the saw teeth. This saw is characterized in that the saw plate 1 is formed so that its thickness becomes thinner in the direction of the saw teeth near the boundary with the saw teeth 2.

（作用・効果）本発明は以上のような構成であって、鋸板１は鋸歯２と
の境付近で鋸歯方向に行くに従って厚みが薄くなるよう
に形成されている。(Operations/Effects) The present invention has the above-described configuration, and the saw plate 1 is formed so that its thickness decreases in the direction of the saw teeth near the boundary with the saw teeth 2.

したがって、各鋸歯２の基部７の厚みが小さいため、ア
サリ出しをした場合にアサリの幅ａを小さくすることが
できる。すなわち、鋸板１の厚みが比較的厚めであるの
に拘らず、第３図に示す背金５の付いた鋸板６の薄い鋸
と同程度のアサリの幅とすることができる。Therefore, since the thickness of the base 7 of each sawtooth 2 is small, the width a of the set can be made small when set. That is, even though the thickness of the saw plate 1 is relatively thick, the width of the set can be made comparable to that of a thin saw plate 6 with a back plate 5 shown in FIG.

この結果、アサリの幅が小さいので材料の切れ口をきれ
いにすることができ、しかも、背金を必要としないから
厚い材料であっても切り落とすことができるという効果
を奏する。As a result, since the width of the clam is small, the material can be cut cleanly, and since no back metal is required, even thick materials can be cut off.

[Brief explanation of the drawing]

第１図は本発明の鋸の前面図、第２図及び第３図は従来
の鋸の前面図である。１、３．　６゜、鋸板　　２．４．　、鋸歯５１．背金
　　７１．鋸歯の基部FIG. 1 is a front view of a saw according to the present invention, and FIGS. 2 and 3 are front views of a conventional saw. 1, 3. 6°, saw board 2.4. , sawtooth 51. Back money 71. base of sawtooth

Claims

[Claims]

In a saw in which a large number of saw teeth 2 are provided on at least one side edge of a saw plate 1, and each saw tooth 2 is bent slightly left and right alternately, the saw plate 1 goes in the saw tooth direction near the boundary with the saw teeth 2. A saw characterized in that the saw is formed so that the thickness becomes thinner according to the following.