JPS6140481Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an electric saw blade machine.

In order to accurately cut materials such as wood with an electric saw blade, conventionally, as shown in Figure 1, a corner line 7 is attached to the cutting part of the material to be cut, and a corner line 7 is placed on the bottom of the electric saw blade. By aligning the corner mark 6 of the provided base 3 along the corner line 7, the material to be cut at the corner line 7 is cut by the saw blade 4 of the electric saw blade. However, in the conventional corner marking 6, the distance l between the cutting direction mark 6 formed on the outer edge of the base 3 on the cutting direction side of the saw blade 4 and the tip of the saw blade 4 is long, and therefore the corner marking Even if the saw blade 4 is aligned with the corner line 7, there are cases where the saw blade 4 does not cut the corner line 7. Using the corner mark 6 as a guide would not allow the material to be cut to be cut accurately along the corner line 7. I had a problem with not being able to disconnect. On the other hand, when cutting the material to be cut, the worker generally cuts by keeping his eye on the tip of the saw blade 4 at a ratio of 7:3; If this was attempted, there was a problem in that chips from the material to be cut would gather on the corner line 7, making it difficult to see the corner line 7.

The present invention has been made in view of the above points, and an object of the present invention is to provide an electric saw blade machine that can accurately cut a material to be cut along corner lines.

The present invention will be explained in detail below with reference to Examples. FIG. 2 shows an overall perspective view of an embodiment of the present invention, and 2 in the figure is the main body housing. Main body housing 2
As shown in FIGS. 3 and 4, a motor 1 for driving the saw blade 4 and a battery 9 are built inside. A base 3 protrudes from the bottom side of the main body housing 2, and a portion of a saw blade 4 protrudes downward from a saw blade protrusion hole 5 formed in the base 3. This saw blade 4
When not in use, it is covered by a fixed safety cover 10 and a movable safety cover 11, and when in use, the movable safety cover 11 is pushed up by the material to be cut and stored inside the fixed safety cover 10. The base 3 has a substantially rectangular saw blade protrusion hole 5 as shown in FIG.
is drilled therein, and a cut-off mark 6 is formed on the inner edge of the saw blade protruding hole 5 of the base 3 in the forward direction of the cutting direction of the saw blade 4. As shown in FIG. 6, the corner mark 6 is formed into an inverted triangular shape and protrudes from the inner edge of the saw blade protruding hole 5 of the base 3, and is connected to the corner line 7 and the corner mark 6.
It is designed so that it can be cut accurately by aligning the tip with the tip. Further, as shown in FIGS. 7 and 8, a semicircular or semisquare corner mark 6 may be provided protrudingly, and a protrusion mark 12 may be attached to the center thereof. By doing this, you will not be injured at the corner of the corner mark 6. Moreover, FIG. 9 shows the base 3 formed by cutting the inner edge thereof at right angles. In FIG. 4, 13 is a gear box that transmits the drive of the motor 1 to the saw blade 4, 14 is a saw blade fixing flange, 15 is a handle, and 16 is a box that houses a battery 9 and is inserted into the main body housing 2 so that it can be taken out. It is a battery pack.

Therefore, when cutting the material to be cut along the corner line 7, the corner mark 6 should be placed at the corner line 7.
This is done by placing the electric saw blade above the material to be cut and sliding the electric saw blade over the material to be cut. By providing the corner mark 6 on the inner edge of the base 3 on the saw blade 4 side, the corner mark 6 and the saw blade can be easily cut. 4 becomes shorter, and if the material to be cut is cut using the corner mark 6 as a guide, it is possible to accurately cut on the corner line 7. Matasumioi mark 7 and saw blade 4
You can cut while looking at the tip of the
This makes it easier to cut along the corner line 7. Furthermore, since the distance between the corner tracking mark 6 and the tip of the saw blade 4 is shortened, the corner tracking mark 6 can follow the corner line 7 until near the end of cutting the material to be cut compared to the conventional method.

In addition, FIG. 10 shows another embodiment of the present invention, in which the inner edge of the saw blade protruding hole 5 of the base 3 and the base 3 are
An inner corner mark 6a and an outer corner mark 6b are formed on the outer edges of the inner corner mark 6a and outer corner mark 6b, respectively. By aligning the inner and outer corner marks 6a, 6b with the corner line 7, a straight cut plane that matches the corner line 7 can be set. Also, there is a corner hole 17 in the base 3 between the two corner marks 6a and 6b.
may be drilled. This corner chasing hole 17 is formed in an elliptical shape, and marks 19, 19 are attached to the periphery thereof on the connection of both corner chasing marks 6a, 6b. By doing this, the number of marks to be used for cutting corners increases, so it becomes more reliable to set a straight cutting surface that matches the corner line 7. Also, at the end of cutting the material to be cut, the corner line 7 It is easy to follow the corner line 7, and if the mark 19 on the periphery of the corner hole 17 and the corner mark 6a on the inside are aligned with the corner line 7, it can be cut in a straight line. The corner hole 17 may be formed in a rectangular or diamond shape as shown in FIGS. 11 and 12.

13 to 15 show still another embodiment, in which the corner mark 6 is replaced by a long vernier 1.
8, and the other end of the vernier 18 is movably attached to the base 3 with a vernier support part 20. The corner mark 6 is mounted so as to be movable in a direction perpendicular to the cutting direction of the saw blade 4, and a scale 21 is displayed on the base 3 to indicate the extent to which the corner mark 6 has been moved. This movable corner mark 6 may be provided inside or outside the base 3, or on both the inside and outside sides.If the corner mark 6 is fixed at the cutting front position of the saw blade 4, the above effect can be obtained. At the same time, only the corner mark 6b on the outside of the base 3 is moved and fixed at an arbitrary scale, and both corner marks 6a and 6b are aligned with the corner line 7, thereby cutting the material to be cut in an arc shape with a constant curvature. It can be cut. The scale 21 is carved according to the curvature of this circular arc.

As mentioned above, in this invention, a corner mark is formed on the inner edge of the saw blade protruding hole of the base on the cutting direction side of the saw blade. By positioning the mark on the corner line of the material to be cut and cutting, it is possible to cut accurately along the corner line, and because the distance between the corner mark and the tip of the saw blade is shortened, the corner mark can be cut easily. This allows you to cut while looking at the saw blade and the saw blade at the same time, making it very easy to cut along the corner lines. In addition, it is possible to follow the filler line with the corner mark until near the end of the cut of the material to be cut, so that the cut end portion of the material to be cut can also be accurately cut. Moreover, since the corner mark is formed to protrude from the inner edge of the saw blade protruding hole of the base on the cutting direction side of the saw blade, the chips cut by the saw blade are formed protruding from the opening edge of the saw blade protruding hole. It is difficult for chips to fall from above the corner mark and accumulate on the corner mark, and even if chips do accumulate on the corner mark, the corner mark is formed by protruding from the opening edge of the saw blade protrusion hole. The mark is not hidden by chips, so it is easy to use, allows the material to be cut accurately along the corner line, and can be used to remove chips that accumulate on the material to be cut. Since the protruding corner mark allows cutting to be performed while dividing the cutter from side to side, the corner line is less likely to be hidden by chips, making it easy to use.In addition, the distance between the corner mark and the tip of the saw blade is shortened. Therefore, even short materials can be cut accurately.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of a conventional example, Fig. 2 is an overall perspective view of an embodiment of the present invention, Fig. 3 is a side view of the same, and Fig. 4 is an explanatory diagram of a conventional example.
The figure is a sectional view of the same as above, Figure 5 is a bottom view of the same as above, and Figure 6 is a bottom view of the same as above.
The figure is a top view of the main parts of the same as the above, FIGS. 7 to 9 are top views of the main parts of other embodiments of the same, respectively, FIG. 10 is a top view of the main parts of still another embodiment of the same, and FIG. 11 12 is a top view of a main part of still another embodiment of the same as above, FIG. 13 is a top view of a main part of still another embodiment of the same as above, FIG. 14 is a partially cutaway perspective view of the same as above, and FIG.
The figure is an explanatory diagram same as the above. 1 is a motor, 2 is a main body housing, 3 is a base, 4 is a saw blade, 5 is a saw blade protrusion hole, and 6 is a corner mark.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) The base protrudes laterally from the bottom of the main body housing containing the motor, and a saw blade protrusion hole is formed in the base so that the saw blade driven by the motor protrudes below the base. At the same time, a corner mark is formed protruding from the inner edge of the saw blade protruding hole of the base on the cutting direction side of the saw blade. (2) The electric saw blade machine according to claim 1, wherein a corner mark is formed on the inner edge of the saw blade protruding hole of the base and on the outer edge of the base, respectively, on the cutting direction side of the saw blade.