JPH079402A - Saw - Google Patents

Abstract

PURPOSE:To provide a saw capable of performing longitudinal sawing, lateral sawing and oblique sawing by one row of sawing blades. CONSTITUTION:4-12 lateral sawing blades 1 are arranged to at least the principal part of a sawing blade and two longitudinal sawing blades 2 are arranged so as to be adjacent to the blades and the blade rows of these groups are alternately arranged and the longitudinal sawing blades 2 are made slightly lower than the lateral sawing blades 1.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION This invention relates to improvements in saws.

[0002]

2. Description of the Related Art Conventional saws are divided into vertical and horizontal saws. Since the horizontal saw blade cuts the fibers of the wood while cutting it, it is designed to cut with a slicing knife while inserting cutting lines on the left and right of the fibers. Therefore, when the wood is cut in the longitudinal direction with this horizontal saw blade, the portion that does not need to be cut into fibers is cut off, so that it is extremely inefficient and practically unusable. Also, in the case of vertical sawing, since it is cut vertically along the fibers of the wood, there is no resistance of the fibers, so the bottom of the cutting width is a blade that is exposed with a chisel of a carpenter's tool. Therefore, when the wood is cut in the horizontal direction with the vertical saw blade, the vertical saw blade cannot cut the fiber, and therefore cannot cut the fiber due to the resistance of the fiber. For this reason, the conventional saw has a blade dedicated to vertical grinding on one edge of the blade body and a blade dedicated to horizontal grinding on the other edge, and is used according to each application.

[0003]

The conventional saw blade is as described above, and it is inefficient to cut it longitudinally with a horizontal saw blade, and even if it is cut laterally with a vertical saw blade, it is cut due to the resistance of the fiber. I can't. Also, if you cut the wood diagonally, the cutting distance will be longer than if you cut it horizontally from end to end, so it means that the element of vertical grinding is added accordingly, so it was cut with the horizontal cutting blade. After all, efficiency becomes poor. Therefore, an object of the present invention is to provide a saw that can perform vertical cutting, horizontal cutting, and diagonal cutting with a row of saw blades.

[0004]

According to the structure of the present invention, in a saw in which a horizontal saw blade 1 and a vertical saw blade 2 are mixed in a saw blade arranged in series at the edge of the blade body, at least a main part of the saw blade is provided. 4 to 12 horizontal grinding blades 1 are provided side by side, two vertical grinding blades 2 are provided next to each other, and a row of groups of these blades are alternately arranged. Is characterized in that it is slightly lower in height than the horizontal grinding blade 1.

[0005]

Embodiments of the present invention will now be described with reference to the drawings. Reference numeral 1 is a horizontal grinding blade, and eight horizontal grinding blades are arranged in a line at the edge of the blade body. Reference numeral 2 is a vertical grinding blade,
Two horizontal grinding blades 1 are provided next to each other in series, and two of them are also provided in series. A group of blade rows in which the horizontal grinding blades 1 and the vertical grinding blades 2 are combined are alternately arranged on the blade edge portion of the saw.
The height of the vertical cutting blade 2 is lower than that of the horizontal grinding blade 1, and the difference is preferably about 0.1 mm.

The number of the horizontal grinding blades 1 in the group of blade rows is preferably around eight, and may be four to twelve. Further, it is preferable that only the horizontal grinding blade is provided at the blade base, that is, the portion closer to the handle of the blade edge portion. This is because the cutting edge is exposed if there is a vertical cutting blade at the beginning of cutting. About 26 side milling blades are suitable for the blade base.

[0007]

The structure of the present invention is as described above.
4 to 1 saw blades in a row for 2 vertical saw blades
Two horizontal grinding blades are adjacent to each other, and these vertical and horizontal grinding blades are alternately arranged. Therefore, since there are more side-grinding blades, the side-grinding blade surely cuts the fibers of the wood when the wood is cut in the horizontal method, so that the wood can be cut like a conventional saw for exclusive use of horizontal-grinding. . Also, although the number of vertical grinding blades is smaller than that of horizontal grinding blades, there are two vertical grinding blades between horizontal grinding blades,
Although slightly inefficient, it can cut wood in the vertical direction much more efficiently than a saw for horizontal sawing. The present invention is most effective in cutting wood diagonally. In this case, since the fibers of wood must be cut, it is necessary to use a horizontal saw blade. However,
When cutting diagonally, it means that the wood is being cut in the vertical direction, so the efficiency of the saw for exclusive use of horizontal grinding will be poor. According to the present invention, since two vertical saw blades are provided between four to twelve horizontal saw blades, the horizontal saw blade cuts the fibers of the wood,
Since the vertical saw blade scrapes out the soft wood between fibers, it is possible to efficiently perform diagonal cutting. Further, in the present invention, the height of the vertical grinding blade is slightly lower than that of the horizontal grinding blade. Therefore, when cutting wood laterally or diagonally,
The cutting edge of the horizontal grinding blade hits the fibers of wood before the cutting blade of the vertical grinding blade, and then the vertical grinding blade scrapes off scraps and soft wood parts of the wood. It never disappears.

[Brief description of drawings]

FIG. 1 is a partial front view of a saw blade according to the present invention.

[Explanation of symbols]

 1 horizontal grinding blade 2 vertical grinding blade

Claims (1)

[Claims] 1. A saw in which a horizontal saw blade 1 and a vertical saw blade 2 are mixed in a saw blade arranged in series at a blade edge portion, and at least a main portion of the saw blade has four horizontal saw blades 1 to 4. Twelve side-by-side blades are provided next to each other, two vertical saw blades 2 are provided next to each other, and a group of blade rows are alternately arranged, and the vertical saw blades 2 have a height higher than that of the horizontal saw blade 1. A saw characterized by a rather low price.