JP3060488U - saw - Google Patents

Abstract

(57) [Problem] To provide a dual-purpose type that can be used for vertical grinding, horizontal grinding, and diagonal grinding. To provide an epoch-making saw that can obtain excellent operation feeling and sharpness without pushing and without resistance even at the time of pushing. SOLUTION: In a saw in which a saw blade is continuously formed on a side edge of a saw blade 1 and a tip of the continuous saw blade is formed on a set part 3 which protrudes outward alternately left and right for each one, the saw blade comprises: A horizontal saw blade 2A is formed continuously, and a vertical saw blade 2B and a horizontal saw blade 2A 'are provided at several positions of the continuous horizontal saw blade 2A from the tip side of the saw blade 1 in the vertical saw blade 2B. The mixing blades 4 are provided alternately and continuously in the order of the blades 2A ', and the mixing blades 4 include at least a vertical blade 2B and a horizontal blade 2A'.
And the vertical saw blade 2B and the horizontal saw blade 2A 'of the mixing blade portion 4 are formed into a vertical saw blade 2B and a horizontal saw blade 2A' having no set portion 3. A saw in which the upper blade portion 5 and the lower blade portion 6 of each of the vertical saw blades 2B are formed on a tanned surface 7 inclined in substantially the same direction as each other.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a saw capable of three-way cutting of vertical, horizontal and diagonal grinding.

[0002]

[Problems to be solved by conventional techniques and devices]

 Conventionally, a saw for both vertical and horizontal grinding has been proposed.

[0003] The vertical saw, the horizontal saw and the diagonal saw are combined. A vertical saw blade 21 is formed at several points in the middle of a continuous horizontal saw blade 20 as shown in FIGS. Generally, a configuration in which a recessed portion 22 having a width just about the same as that of the saw blade is formed on the lower blade portion 21A side of the vertical saw blade 21 is generally used.

The concave portion 22 adjacent to each vertical saw blade 21 has a lower blade portion 21A perpendicular to the saw blade 23 of the vertical saw blade 21 so that the vertical fiber of wood can be scooped out into the concave portion 22. The concave portions 22 allow the vertical grinding blades 21 to exhibit the vertical grinding capability even if they are scattered in the horizontal grinding blades 20.

[0005] However, in the conventional vertical and horizontal saw, since the saw blade, which should be originally located, is missing at the recess 22 adjacent to the vertical saw blade 21 as described above. Then, when performing a cutting operation to grind the saw to the front, the part that was supposed to be cut by the original saw blade remains in the cutting wood, and the vertical saw blade 21 bites deeply into the remaining part and cuts. Therefore, there is a disadvantage that the biting operation becomes a grinding resistance, and a feeling of resistance is generated at hand as compared with a saw having a structure in which saw blades are continuously formed without gaps.

The present invention finds and solves the drawbacks of such conventional vertical and horizontal saws, which can be used for vertical grinding, horizontal grinding, and diagonal grinding as before. This is a revolutionary saw that can be used even when it is used. It is a suggestion.

[0007]

[Means for Solving the Problems]

 The gist of the present invention will be described with reference to the accompanying drawings.

In a saw in which a saw blade is continuously formed on a side edge of a saw blade 1, and the tip of the continuous saw blade is formed on a set part 3 which protrudes outward alternately left and right, one by one, The horizontal saw blade 2A is formed continuously, and a vertical saw blade 2B and a horizontal saw blade 2A 'are provided at several places of the continuous horizontal saw blade 2A from the tip side of the saw blade 1 in the vertical saw blade 2B. The mixing blades 4 are provided alternately and continuously in the order of the sawing blades 2A ', and the mixing blades 4 are configured such that at least four vertical blades 2B and four horizontal blades 2A' are continuous. The vertical saw blade 2B and the horizontal saw blade 2A 'of the blade unit 4 are formed into a vertical saw blade 2B and a horizontal saw blade 2A' without the countersunk portion 3, and the upper blade part 5 of each vertical saw blade 2B. And a lower blade portion 6 formed on a tanning surface 7 inclined in substantially the same direction as each other.

Further, in a saw in which a saw blade is continuously formed on the side edge of the saw blade 1 and the end of the continuous saw blade is formed on a set part 3 which protrudes outward alternately left and right for each one, The horizontal saw blade 2A is formed continuously, and a vertical saw blade 2B and a horizontal saw blade 2A 'are provided at several places of the continuous horizontal saw blade 2A from the distal end side of the saw blade 1. A mixing blade portion 4 is provided, which is alternately continuous in the order of the horizontal saw blades 2A ', and the mixing blade portion 4 is configured so that at least four vertical saw blades 2B and horizontal saw blades 2A' are continuous. Each of the vertical saw blades 2B of the mixing blade section 4 is constituted as a vertical saw blade 2B having no set portion 3, and a horizontal saw blade 2A 'continuous with the base end of the saw blade 1 of each vertical saw blade 2B. The protruding direction of the set portion 3 of the horizontal saw blades 2A and 2A 'which is continuous with the tip of the saw blade 1 of each vertical saw blade 2B. A saw blade formed on a set portion 3A protruding in the direction, and the upper blade portion 5 and the lower blade portion 6 of each of the vertical saw blades 2B are formed on a running surface 7 inclined in substantially the same direction. Things.

[0010] Further, the height of the mixing blade portion 4 is set to be about 0.1 to 0.15 mm lower than that of the other horizontal saw blade 2A. It relates to the saw described in item 1.

The height dimension of each of the vertical saw blades 2B is set to be about 0.1 to 0.15 mm lower than the other horizontal saw blades 2A and 2A '. The present invention relates to the saw as described in any one of the above items 2.

[0012]

[Embodiment of the invention]

 Preferred embodiments of the present invention (how to implement the present invention), which is considered to be preferable, will be briefly described with reference to the drawings, showing the operational effects thereof.

[0013] By providing the mixing blade portion 4 in which the vertical grinding blades 2B and the horizontal grinding blades 2A 'are alternately connected at several places of the continuous horizontal grinding blades 2A, the saw of the present invention can be used for vertical grinding. It can be used for horizontal or diagonal grinding.

In addition, since the mixing blade portion 4 has a configuration in which the vertical grinding blade 2B and the horizontal grinding blade 2A 'are continuous and does not form the concave portion 22 unlike the conventional example, the mixing blade portion 4 has a concave portion. There is no resistance at the time of grinding caused by 22 and smooth grinding response is obtained.

The mixing blade section 4 has a structure in which at least the vertical blade 2B and the horizontal blade 2A 'are continuous from the tip of the saw blade 1 in the order of the vertical blade 2B and the horizontal blade 2A'. When the saw blade 1 is ground, the horizontal saw blade 2A 'first cuts the left and right cut surfaces of the cutting groove 8 of the workpiece A (wood). Then, the vertical saw blade 2B is guided to the cutting groove 8.

That is, at the time of cutting and grinding, since the horizontal grinding blade 2A 'serves as an extruder for the vertical grinding blade 2B, the vertical grinding blade 2B is cut by the cutting groove in a state where it is hard to receive resistance from the left and right cut surfaces. 8 so that even when used for horizontal or diagonal grinding, the unnatural resistance caused by having the vertical grinding blade 2B during the grinding operation does not occur. , Smooth grinding response is obtained.

[0017] Further, as shown in FIG. 5 (b), the conventional vertical saw blade has an upper blade portion and a lower blade portion having a blade surface perpendicular to the saw blade. When used for diagonal sawing, wood fibers and the like protruding from the rough cutting surfaces on the right and left sides of the cutting groove 8 of the workpiece A are caught on the right-angled cutting surfaces of the upper blade portion and the lower blade portion. In this invention, the upper blade portion 5 and the lower blade portion 6 of each vertical saw blade 2B are formed on the tanning surface 7 which is inclined substantially in the same direction. As a result, the inclined straight surface 7 comes into contact with the rough left and right cut surfaces of the cut groove 8.

Therefore, even if the cutting groove 8 is used for horizontal or diagonal grinding, the obtuse portion on one side of each of the tangent surfaces 7 with respect to the left and right cut surfaces of the cutting groove 8 becomes a rough cut surface. The contact of the obtuse angled inclined surface reduces the frictional friction with the cut surface, and the acute angle on the other side of each tangent surface 7 with respect to the left and right cut surfaces of the cutting groove 8 is reduced. Since the cutting proceeds while cutting the wooden fiber having a rough cut surface, the saw blade 1 can be smoothly ground and pushed back.

Further, the smooth surface 7 also acts to sweep out chips, so that chips are less likely to remain in the cutting grooves 8.

Therefore, in the present invention, even when used for horizontal sawing or diagonal sawing, unnatural resistance due to having the vertical sawing blade 2B at the time of pushing and sawing when cutting is performed. Since no sensation is produced, the cutting operation is performed remarkably smoothly as compared with the conventional example, so that extremely excellent sharpness can be obtained.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described with reference to the drawings.

The present embodiment is applied to a saw in which a saw blade is continuously formed on one side edge of a saw blade 1 and the end of the continuous saw blade is formed on a set part 3 projecting outward right and left alternately one by one. More specifically, as shown in FIG. 1, the saw blade is formed by continuously forming a horizontal saw blade 2A, and a vertical saw blade is formed at several positions of the continuous horizontal saw blade 2A. The mixing blade portion 4 in which the blades 2B and the horizontal grinding blades 2A 'are alternately continuous is provided to constitute a saw for both vertical grinding, horizontal grinding, and diagonal grinding.

The mixing blade section 4 will be further described. As shown in FIG. 2, the vertical saw blade 2B and the horizontal saw blade 2A 'are connected to the vertical saw blade 2B and the horizontal saw blade 2A' from the tip side of the saw blade 1. Each of the mixing blades 4 is configured so that the vertical blade 2B and the horizontal blade 2A 'are continuous with each other.

Further, as shown in FIG. 2B, each vertical saw blade 2 B of the mixing blade section 4 is formed as a vertical saw blade 2 B having no round portion 3, and each vertical saw blade 2 B is formed. The cutting edge of the horizontal saw blade 2A 'connected to the distal end side of the saw blade 1A of each of the vertical saw blades 2A and 2A' It is formed on a set part 3A that projects in the opposite direction.

Therefore, when grinding the saw blade 1, first, the set portion 3 A of the horizontal saw blade 2 A ′ cuts the left and right cut surfaces of the cutting groove 8 of the cut object A. The set portion 3A of the horizontal saw blade 2A 'plays the role of removing the vertical saw blade 2B, and furthermore, since the vertical saw blade 2B does not have the set portion 3, the vertical saw blade 2B is separated from the left and right cut surfaces. It is guided to the cutting groove in a state where it is hard to receive resistance, so that even if it is used for horizontal grinding or diagonal grinding, it has the vertical grinding blade 2B at the time of grinding operation. A smooth grinding response can be obtained without generating unnatural resistance.

In this embodiment, the upper blade portion 5 and the lower blade portion 6 of each of the vertical saw blades 2B are formed on the sloped surface 7 which is inclined in substantially the same direction.

Further, the angle of inclination of the smoothed surface 7 with respect to the saw blade 1 is set to an inclination angle close to a right angle (90 degrees) so that the smoothed surface 7 does not lose the scooping ability as a vertical saw blade. Make up.

Therefore, even when used for horizontal sawing or diagonal sawing, the obtuse portion on one side of each tangent surface 7 with respect to the left and right cut surfaces of the cutting portion 8 is formed into a rough cut surface. The contact with the obtuse angled inclined surface reduces the frictional friction with the cut surface, and the acute angle on the other side of each tangent surface 7 with respect to the left and right cut surfaces of the cut portion 8. Since the cutting proceeds while cutting the wooden fiber having a rough cut surface, the saw blade 1 can be smoothly ground and pushed back.

As shown in FIG. 4, the tanned surface 7 also acts to sweep out chips, so that chips are less likely to remain in the cutting groove 8, and the upper blade 5 and the lower blade 5 6 are formed on the tanning surface 7 which is inclined substantially in the same direction as each other, so that the vertical grinding blade 2B has a shape in which a vertical grinding blade having scooping ability is twisted. The scooping function as 2B is not lost, and cutting can be performed smoothly for vertical grinding, horizontal grinding, and diagonal grinding.

In the present embodiment, the height of the mixing blade 4 is set to be about 0.1 to 0.15 mm lower than that of the other continuous horizontal saw blades 2A.

Therefore, by slightly lowering the mixing blade portion 4 in this manner, the cutting is performed by the mixing blade portion 4 being in contact with the cutting groove 8 more shallowly than the other horizontal grinding blade 2A during the grinding operation. Therefore, the grinding movement resistance is further reduced, and since it is slightly lower rather than extremely low, there is no resistance due to the absence of a saw blade as in the conventional example. Operation feeling will be obtained.

In this embodiment, the case is shown in which only the vertical saw blade 2B does not have the set portion 3, but the vertical saw blade 2B and the horizontal saw blade 2A adjacent to the vertical saw blade 2B are shown. It is good also as composition which does not have the set part 3A, and also in this case, the wiping action by the horizontal saw blade 2A 'is not lost, and the same operation and effect as described above can be obtained.

In the present embodiment, the four horizontal saw blades 2A ′ and the vertical saw blades 2B constituting the mixing blade unit 4 are all configured to be slightly lower than the other horizontal saw blades 2A. Although the case where the vertical grinding blade 2B is slightly lowered may be used, the same operation and effect as described above can be obtained in this case.

In this embodiment, the case where the present invention is applied to a saw having a saw blade on one side edge of the saw blade 1 has been described. However, the present invention is applied to a so-called double-blade saw having saw blades on both side edges of the saw blade 1. Is also good. When the present invention is applied to a double-edged saw, the double-edged saw may have a saw blade structure having the mixing blade section 4 of the present embodiment, or one side may have the saw blade structure of the present embodiment, and the other side may have a horizontal saw or a vertical saw. A configuration using a saw may be used.

[0035]

[Effect of the invention]

 In the invention of claims 1 and 2, since the above-described structure is employed, the saw can be used for vertical grinding, horizontal grinding, and diagonal grinding. An extremely good grind response can be obtained without generating a feeling of resistance as in the conventional example, and an excellent operational feeling without resistance can be obtained even at the time of pushing.

Therefore, even when used for horizontal grinding or diagonal grinding, there is no unnatural feeling of resistance caused by having the vertical grinding blade in the pressing and grinding operation at the time of cutting. In addition, the cutting operation is performed extremely smoothly as compared with the conventional example, and an extremely excellent sharpness can be obtained.

In the invention according to claim 3, the mixing blade portion is slightly lower than the other horizontal grinding blades, so that the mixing blade portion has a cutting groove that is smaller than the other horizontal grinding blades during the grinding operation. Since the cutting is performed in shallow contact with the surface, the grinding movement resistance is further reduced, and the saw is extremely practical and extremely smooth without any resistance.

In the invention according to the fourth aspect, the vertical saw blade is slightly lower than the other horizontal saw blades, so that the vertical saw blade is more cut than the other horizontal saw blades during the grinding operation. Since the cutting is performed in shallow contact with the surface, the grinding movement resistance is further reduced, and the saw is extremely practical and extremely smooth without any resistance.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a present embodiment in which a part of a saw blade is omitted.

FIG. 2 is a partially enlarged explanatory view showing a main part of the present embodiment.

FIG. 3 is a partially enlarged explanatory view showing a use state of the present embodiment.

FIG. 4 is a perspective view illustrating a cutting operation of the vertical saw blade of the present embodiment.

FIG. 5 is a partially enlarged explanatory view showing a main part of a conventional example.

FIG. 6 is a partially enlarged explanatory view showing a use state of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Saw blade 2A Horizontal saw blade 2A 'Horizontal saw blade 2B Vertical saw blade 3 Set portion 3A Set portion 4 Mixing blade portion 5 Upper blade portion 6 Lower blade portion 7 Smooth surface

Claims (4)

[Utility model registration claims] 1. A saw in which a saw blade is continuously formed on a side edge of a saw blade, and a tip of the continuous saw blade is formed in a set portion which protrudes outward alternately left and right for each piece. Vertically formed blades and horizontal saw blades are successively arranged in the order of a vertical saw blade and a horizontal saw blade from the tip side of the saw blade at several places of the continuous horizontal saw blades. A mixing blade portion is provided, and the mixing blade portion is configured so that at least a vertical blade and a horizontal blade are continuous with each other, and the vertical blade and the horizontal blade of the mixing blade portion are provided with a set portion. A saw comprising a vertical saw blade and a horizontal saw blade having no upper blade portion and a lower blade portion of each of the vertical saw blades, which are formed on a tangential surface inclined in substantially the same direction as each other. 2. A saw in which a saw blade is continuously formed on a side edge of a saw blade, and a tip of the continuous saw blade is formed in a set portion which protrudes outward alternately left and right for each piece. Vertically formed blades and horizontal saw blades are successively arranged in the order of a vertical saw blade and a horizontal saw blade from the tip side of the saw blade at several places of the continuous horizontal saw blades. The mixing blade portion is provided, and the mixing blade portion is configured such that at least four vertical and horizontal grinding blades are continuous with each other, and each of the vertical blades of the mixing blade portion is vertically milled without a set portion. In addition to forming the blade, the tip of the horizontal saw blade that is continuous with the base end of the saw blade of each of the vertical saw blades is opposite to the projecting direction of the set portion of the horizontal saw blade that is continuous with the tip of the saw blade of each vertical saw blade. The upper blade part and the lower blade part of each vertical saw blade are formed in a set part projecting in the A saw formed on a surface. 3. The height of the mixing blade portion is set to a height lower than that of the other horizontal sawing blades by about 0.1 to 0.15 mm. The saw described in. 4. A height dimension of each of said vertical saw blades is set to a height dimension lower than that of said other horizontal saw blades by about 0.1 to 0.15 mm. Saw according to item.