JP3065229U - Hand saw guide device - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To allow a saw blade to be reliably guided in a stable state so that a cut surface is beautifully finished, and to be easily and easily changed to an arbitrary angle so as to improve usability. SOLUTION: A main body 2 having an L-shaped cross section for engaging with a corner 1a of a workpiece 1, and an upper surface of one end 2a in a longitudinal direction of the main body 2 is rotatable about a vertical axis 4 as a center. And the saw guide portion 3 provided in the above. The main body 2 is provided with fixing means 6 for fixing the saw guide 3 after rotation, and an angle scale 7 for reading the rotation angle of the saw guide 3 with respect to the main body 2. The saw guide portion 3 includes a guide plate 3a to which the plate surface 5a of the saw 5 is applied, and a plate surface 5 of the saw 5 on the outer surface of the guide plate 3a.
A permanent magnet 3b is attached to the inner surface of the guide plate 3a over the longitudinal direction of the guide plate 3a in order to adsorb a.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a hand saw guiding device, and more particularly, to a hand saw formed so that a cut surface can be cut easily and easily at an arbitrary angle when cutting a square material, a plate material, or the like. The present invention relates to a guide device.

[0002]

[Prior art]

 Conventionally, as an apparatus of this type, as shown in FIG. 7, for example, a plate surface portion b applied to the upper surface of a square bar a serving as a workpiece, and one side portion in the longitudinal direction of the plate surface portion b Some include a plate surface portion b and an engaging portion c formed integrally. In the case of this conventional product, the side end d in the short width direction is formed so as to be inclined in advance at a constant angle such as an angle e of, for example, 45 degrees, so as to guide the saw f.

[0003]

[Problems to be solved by the invention]

 By the way, this type of device is desirably formed so that the guide section can surely guide the saw in a stable state so that the cut surface is finished finely.

However, as described above, in the conventional product, the side end as the guide portion for guiding the saw is merely formed at a fixed angle such as, for example, 45 degrees. The saw was easily detached and detached from the guide. Therefore, according to the conventional product, there is a problem that the cut surface is formed in a stepped shape or roughened, so that it cannot be cut cleanly, and as a result, post-processing such as planing is required.

[0005] In addition, it is desirable that this kind of apparatus is formed so that a workpiece can be cut easily and quickly at an arbitrary angle so as to improve usability.

However, as described above, in the conventional product, the side end portion as the guide portion is formed only at a certain angle, for example, 45 degrees. Therefore, according to the conventional product, it is desired to cut at another angle. In such a case, it cannot be used, and as a result, there is a problem that the usability is poor.

The present invention has been proposed in view of such a problem of the conventional product. Therefore, the technical problem of the present invention is that a hand formed so that the saw blade can be reliably guided in a stable state so that the cut surface can be neatly finished, and can be easily and easily changed to an arbitrary angle to improve the usability. It is to provide a saw guiding device.

[0008]

[Means for Solving the Problems]

 The present invention employs the following technical means in order to solve the above problems.

That is, as shown in FIG. 1, the present invention comprises a main body 2 having an L-shaped cross section for engaging with a corner 1 a of a workpiece 1, and one longitudinal end of the main body 2. A fixing means 6 formed on the upper surface of 2a so as to be rotatable around a vertical axis 4 and for fixing the turned saw guide 3 to the main body 2; An angle scale 7 for reading a rotation angle of the saw guide portion 3 with respect to the main body portion 2 is provided, and the saw guide portion 3 is provided with a guide plate 3a to which a plate surface 5a of the saw 5 is applied, and this guide plate. A permanent magnet 3b attached to the inner surface of the guide plate 3a in the longitudinal direction to attract the plate surface 5a of the saw 5 to the outer surface of the saw 3a, and a pointer 3c indicating the above-mentioned rotation angle are provided. It is characterized by being formed (claim 1).

In the case of the present invention, the fixing means 6 is not limited to a screw as long as it can fix the saw guide 3 to the main body 2. The permanent magnet 3b is preferably provided continuously over the entire length in the longitudinal direction of the guide plate 3a so that the pinching force is uniform over the longitudinal direction of the guide plate 3a, but is not limited thereto. For example, it may be provided intermittently. The pointer 3c includes, for example, a pointer, a reference line, and a mark.

Thus, in the present invention, as shown in FIG. 6, the angle scale 7 is provided on the saw guide 3 instead of being provided on the main body 2, and the pointer 3 c is formed on the saw guide 3. Instead of being formed, it may be formed on the main body 2 (claim 2).

In this case, even if the guide plate 3a is turned at any angle with respect to the main body 2, one end of the main body 2 does not protrude from the outer surface of the guide plate 3a. Therefore, according to this, there is an advantage that usability is further improved. That is, in the case of the embodiment shown in FIG. 1, since the angle scale 7 is provided at one end 2a of the main body 2, for example, when the scale exceeds 45 degrees, the scale is provided. When the position of the main body 2 is such that the saw guide 3 is disposed at an angle smaller than 45 degrees, it may protrude toward the outer surface of the guide plate 3a and touch the blade 5b of the saw 5, and the workpiece 1 may not be cut. Because there is.

In the present invention, as shown in FIG. 4, a gap H is formed between the lower end of the guide plate 3 a and the upper surface 1 b of the workpiece 1. It is preferable that the height be selected to be larger than the height of 5b (claim 3).

Normally, since the blades 5b of the saw 5 are alternately opened outward, this type of apparatus is formed so that the blade 5b of the saw 5 can be smoothly guided without contacting the guide portion. It is desirable that it is.

However, in the conventional product, as shown in FIG. 7, a side end portion as a guide portion abuts on the upper surface of the workpiece a and guides the saw f in this state. Therefore, according to the conventional product, each time the saw f is reciprocated, the blade touches the side end portion as the guide portion, so that not only could it not be pushed and pulled smoothly in a stable state, but also this kind of device made of metal. Contacted the side edge of the blade and easily damaged the blade.

On the other hand, in the case of the present invention according to the third aspect, as shown in FIG. 4, the contact between the blade 5b of the saw 5 and the outer surface of the guide plate 3a can be prevented. Therefore, according to this, there is an excellent practical advantage that wear of both can be prevented and the cutting operation can be performed smoothly.

[0017]

[Embodiment of the invention]

 Hereinafter, a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

In FIG. 1 and the like, reference numeral 1 denotes a square bar as a workpiece. Reference numeral 2 denotes a main body having an L-shaped cross section for engaging with the corner 1a of the workpiece 1. The main body 2 is formed by bending a metal plate into an L-shaped cross section.

Reference numeral 3 denotes a saw guide. The saw guide 3 is provided on the upper surface of one end 2 a of the main body 2 in the longitudinal direction so as to be rotatable about a vertical axis 4. The saw guide portion 3 has a guide plate 3a to which the plate surface 5a of the saw 5 is applied, and an inner surface extending along the longitudinal direction of the guide plate 3a for adsorbing the plate surface 5a of the saw 5 to the outer surface of the guide plate 3a. And a pointer 3c indicating the rotation angle of the saw guide 3 with respect to the main body 2.

In the present embodiment, the guide plate 3a is formed by a vertical surface portion of a metal plate bent into an L-shaped cross section. As shown in FIG. 4, a gap H is formed between the lower end of the guide plate 3a and the upper surface 1b of the workpiece 1, and the height of the gap H is greater than the height of the blade 5b of the saw 5. Largely selected.

The permanent magnet 3b is provided continuously over the entire length of the guide plate 3a in the longitudinal direction. The pointer 3c is a reference line in this embodiment, and is attached to the protruding piece 3d orthogonally to the longitudinal direction of the guide plate 3a.

The main body 2 is provided with fixing means 6 for fixing the saw guide 3 after the rotation. The fixing means 6 is formed by a thumb screw in this embodiment. The axis of the thumb screw as the fixing means 6 is screwed to the main body 2 through an arc-shaped slit 3f formed in the arc plate 3e of the saw guide section 3. In the case of this embodiment, the thumb screw as the fixing means 6 has a function of fixing the saw guide portion 3 and a function of guiding the saw guide portion 3 through the slit 3f when the saw guide portion 3 is rotated by its axis. .

The one end 2 a of the main body 2 is formed in a fan shape, and the one end 2 a is provided with an angle scale 7 for reading the rotation angle of the saw guide 3. As shown in FIG. 5, when the guide plate 3a of the saw guide portion 3 is arranged in a state perpendicular to the longitudinal direction of the main body portion 2, the position indicated by the pointer portion 3c is zero. It is attached so that the state in which the guide plate 3a is rotated clockwise and counterclockwise up to 45 degrees respectively can be read.

Next, the operation of the present invention will be described. First, as shown in FIGS. 1 and 2, the operator engages the main body 2 with the corner 1 a of the workpiece 1, and loosens the thumb screw as the fixing means 6 in this state. Next, the operator turns the saw guide portion 3 about the vertical axis 4 and looks at the angle scale 7 indicated by the pointer portion 3c, and looks at the saw plan inside 3 with respect to the corner portion 1a of the workpiece 1 in plan view. Then, the saw guide 3 is fixed to the main body 2 by tightening the thumbscrew.

Next, in this state, the operator aligns the plate surface 5 a of the saw 5 with the outer surface of the guide plate 3 a and pushes and pulls the saw 5 to cut the workpiece 1. According to the present invention, in this case, since the saw 5 is attracted to the guide plate 3a by the permanent magnet 3b, the saw 5 is reliably guided to the guide plate 3a in a stable state without being separated from or coming off the guide plate 3a. You.

[0026]

[Effect of the invention]

 As described above, according to the present invention, a main body having an L-shaped cross section for engaging with a corner of a workpiece, and an upper surface of one end in the longitudinal direction of the main body are rotatable about a vertical axis. A fixing means for fixing the turned saw guide to the main body, and an angle scale for reading the turning angle of the saw guide. A guide plate to which the saw plate surface is applied, a permanent magnet attached to the inner surface of the guide plate over the longitudinal direction of the guide plate to attract the saw plate surface to the outer surface of the guide plate, And a pointer indicating the turning angle of the pointer.

Therefore, in the case of the present invention, the surface of the saw can be attracted to the guide plate by the action of the permanent magnet, and the saw can be pushed and pulled along the guide plate in a stable state. As a result, according to this, the workpiece can be cut in a state where the cut surface is smooth and beautiful.

Also, in the case of the present invention, the saw guide can be easily and easily arranged at an arbitrary angle while observing the angle scale, so that the workpiece can be cut easily and quickly at a desired angle. You.

[Brief description of the drawings]

FIG. 1 is a plan view showing a preferred embodiment of the device of the present invention in a partially cut-out use state.

FIG. 2 is a perspective view of the same device in a use state.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a sectional view taken along the line IV-IV in FIG. 1;

FIG. 5 is a plan view in which a part of the above device is cut away in a use state.

FIG. 6 is a main part plan view showing another embodiment of the same device.

7A and 7B show a conventional product, wherein A is a plan view in a use state, and B is a cross-sectional view taken along line BB of A.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Workpiece 1a Corner 2 Main part 2a One end 3 Saw guide part 3a Guide plate 3b Permanent magnet 3c Pointer part 4 Vertical axis 5 Saw 5a Plate surface 6 Fixing means 7 Angle scale

Claims (3)

[Utility model registration claims] 1. A main body having an L-shaped cross section for engaging with a corner of a workpiece, and a saw provided on an upper surface of one longitudinal end of the main body so as to be rotatable about a vertical axis. A fixing means for fixing the saw guide after rotation to the main body, and an angle scale for reading a rotation angle of the saw guide relative to the main body are provided. A saw guide portion, a guide plate to which the saw plate surface is applied, and a permanent magnet attached to the inner surface of the guide plate over its longitudinal direction to attract the saw plate surface to the outer surface of the guide plate,
A guide device for a hand saw, wherein the guide device is provided with a pointer portion indicating the rotation angle. 2. The guide device for a hand saw according to claim 1, wherein the angle scale is provided on the saw guide portion instead of being provided on the main body portion, and the pointer portion is formed on the saw guide portion. Instead
A hand saw guide device formed on a main body. 3. The guide device for a hand saw according to claim 1, wherein a gap is provided between a lower end of the guide plate and an upper surface of the workpiece, and the height of the gap is determined by a height of the saw blade. A hand saw guiding device, which is selected to be larger than the height.