JPH09169002A - Circular saw guide rule - Google Patents

Abstract

PURPOSE: To accurately and visually grasp a saw route over the total length of a cutting distance by a user when an electric circular saw is used. CONSTITUTION: A doubling plate 2 for fixing a corner and an end part linear longitudinal guide plate 3 capable of being held at a definite angle with respect to the doubling plate for fixing the corner are provided and a guide projection piece 4 is provided to the upper surface of the end part linear longitudinal guide plate 3 in the longitudinal direction thereof in a protruding state and a circular saw guide plate 9 having a linear end side guiding a circular saw cutting blade 7 over a definite distance from the guide projection piece 4 is integrally formed to the linear longitudinal guide plate 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circular saw guide ruler that allows a user to accurately visually grasp a saw path over the entire length of a cutting distance when using an electric circular saw.

[0002]

2. Description of the Related Art Conventionally, as a circular saw guide ruler, a guide provided on the corner fixing attachment plate and an outer end portion of a straight longitudinal guide plate which can be held at a constant angle with respect to the corner fixing attachment plate. There was a circular saw guide ruler with a protruding piece.

[0003]

When used as the conventional circular saw guide ruler as described above, the corner fixing attachment plate and the corner fixing attachment plate can be held at a constant angle with respect to the corner fixing attachment plate. When the guide edge of the circular saw is brought into contact with the guide protrusion provided on the outer end of the straight longitudinal guide plate, the position of the circular saw blade must be the cutting position. As the circular saw is cut and moved along the saw path, the saw path deviates from the cutting line, and there is a drawback that accurate cutting cannot be performed. Even if a black line is drawn along the cutting line, it is difficult to check the black position by the forward movement of the circular saw blade, and accurate cutting is not easy even for a skilled person.

[0004]

According to the present invention, there is provided a corner fixing attachment plate and an end straight longitudinal guide plate which can be held and fixed at an arbitrary angle with respect to the corner fixing attachment plate.
The circular saw guide plate is provided with a guide projection piece projecting in the longitudinal direction of the upper surface of the end straight guide plate, and a circular saw guide plate having an edge for guiding the circular saw cutting blade at a constant distance from the guide projection piece. The longitudinal guide plate is integrally formed. In addition, the circular saw guide plate,
It is provided so that it can be expanded and contracted with respect to the straight longitudinal guide plate. Furthermore,
The circular saw guide plate is made of a material that can be cut by a circular saw.

[0005]

When the guide side of the circular saw is brought into contact with the guide protrusion provided on the outer end of the straight guide plate, the position of the circular saw blade is always in contact with the long side of the circular saw guide plate. Therefore, if the long sides of the circular saw guide plates are aligned along the black line which is the saw path and the electric circular saw is advanced in the traveling direction, it is possible to cut along the saw path accurately.

[0006]

1 to 2, in order to fix a circular saw guide ruler, a corner fixing attachment plate 2 is fixed to a corner 1 of a base plate. An end straight linear guide plate 3 which can be held and fixed at an arbitrary angle with respect to the corner fixing attachment plate 2 is provided. Normally, the corner fixing attachment plate 2 and the end straight vertical guide plate 3 are often used at an intersection angle of 90 °, but depending on the place of use, they can be used at any other angle. . As a means for changing the angle, a male screw 10 is erected on the upper surface of the corner fixing attachment plate 2, and the corner fixing attachment plate 2 and the end straight longitudinal guide plate 3 can be rotated about a support shaft 11. That is, the semi-circular groove 13 along the locus of the male screw 10 when the end straight vertical guide plate 3 is rotated with respect to the corner fixing attachment plate 2 is provided with the end straight long guide plate. The corner fixing side plate 2 and the end straight vertical guide plate 3 can be fixed at a constant angle by tightening a wing nut 14 provided on the screw 3 and screwed to the screw 10. In addition, 12 is a saw blade.

A guide projection piece 4 is provided so as to project in the longitudinal direction of the upper surface of the end-long straight guide plate 3. The guide piece 4 is a protrusion that contacts the guide side 6 of the electric circular saw 5.

A circular saw guide plate 9 having a straight edge 8 for guiding the circular saw cutting blade 7 at a constant distance from the guide protrusion 4 is integrally formed with the straight longitudinal guide plate. . Therefore, the straight edge 8 is formed exactly parallel to the guide projection piece 4.

[0009]

[Embodiment 2] In FIGS. 3 to 5, the circular saws of different manufacturers may have different distances a from the circular saw guide edge 21 to the circular saw cutting blade 22, so that the circular saw guide edge of the handheld circular saw may be different. The distance from the end projecting piece 28 of the longitudinal guide plate 23 to the straight end 29 of the circular saw guide plate 24 can be expanded or contracted to fine-tune and adapt to the distance from the 21 to the circular saw cutting blade 22 at any time. To be installed in. As a means for adjusting the expansion and contraction, male screws 25, 25 are planted at both ends of the circular saw guide plate 24,
Straight groove holes 26, 26 are provided at both ends of the longitudinal guide plate 23 that overlaps with the upper surface of the circular saw guide plate 24, and the male screws 25, 25 are passed through the groove holes 26, 26 to form a circular saw blade. Guide edge 2
Fine adjustment is made so as to correspond to the distance a from 1 to the circular saw cutting blade 22, and both are fixed by the fixing screws 27, 27.

[0010]

[Embodiment 3] As in Embodiment 2, the distance a from the guide side of the circular saw to the cutting blade of the circular saw differs depending on the type of circular saw of each manufacturer, so any type of circular saw can be used. In the second embodiment, the distance from the end protruding piece 28 of the longitudinal guide plate 23 to the straight end portion 29 of the circular saw guide plate 24 is provided so as to be expandable and contractable so as to be possible.
If the circular saw guide plate 9 is made of a material that can be cut by the circular saw cutting blade 7, for example, a wooden or hard plastic plate, a circular saw guide ruler dedicated to a circular saw owned by the user can be prepared at any time. it can.

[0011]

According to the circular saw guide ruler of the first aspect of the present invention, it is constituted by a corner fixing attachment plate and end straight straight guide plates which can be held and fixed at an arbitrary angle with respect to the corner fixing attachment plate. A circular saw guide plate having a straight edge for projecting a guide projection piece in the longitudinal direction of the upper surface of the end straight straight guide plate and having a straight edge for guiding the circular saw cutting blade at a constant distance from the guide projection piece. Since it is formed integrally with the straight longitudinal guide plate, the position of the black line, which is the cutting saw path, can be easily discriminated, and therefore, even an amateur can easily cut along the saw path. In the circular saw guide ruler of claim 2, since the circular saw guide plate is provided so as to be expandable and contractable with respect to the straight longitudinal guide plate, it can be used regardless of the type of circular saw. In the circular saw guide ruler of claim 3, since the circular saw guide plate is made of a material that can be cut by a circular saw,
A circular saw guide ruler suitable for one's own circular saw can be created by the user.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a usage state of a circular saw guide ruler of the present invention.

FIG. 2 is a front view showing a usage state of the circular saw guide ruler of the present invention.

FIG. 3 is a front view showing a usage state of a circular saw guide ruler according to another embodiment.

FIG. 4 is a perspective view showing a usage state of a circular saw guide ruler according to another embodiment.

FIG. 5 is an enlarged cross-sectional view showing a mounting state of a guide plate and a circular saw guide plate according to another embodiment.

[Explanation of symbols]

 1. . . Base plate corner 2. . . Corner fixing plate 3. . . End straight straight guide plate 4. . . Guide protrusion piece 5. . . Electric circular saw 6. . . Guide edge 7. . . Circular saw blade 8. . . Straight edge 9. . . Circular saw guide plate 10. . . Male screw 11. . . Spindle 13. . . Semicircular slot 13 14. . . Wing nut 14 21. . . Circular saw guide edge 22. . . Circular saw blade 23. . . End straight linear guide plate 24. . . Circular saw guide plate 25. . . Male screw 26. . . Slot 27. . . Fixing screw 28. . . Projecting piece 29. . . Straight edge of circular saw guide plate

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hiroyuki Nakamura 6-250-1, Osaka, Kashiba City, Nara Prefecture (72) Inventor Yoshiharu Fukumoto 171-7, Otsukimachi, Kashihara City, Nara Prefecture

Claims (3)

[Claims] 1. A corner fixing attachment plate and an end straight longitudinal guide plate capable of holding and fixing the corner fixing attachment plate at an arbitrary angle with respect to the corner fixing attachment plate. A circular saw guide plate is provided integrally with the straight longitudinal guide plate, which is provided with a projecting protrusion piece protruding in the longitudinal direction of the upper surface and having a straight edge for guiding the circular saw cutting blade at a constant distance from the guide protrusion piece. Circular saw guide ruler characterized by doing. 2. A circular saw guide ruler characterized in that the circular saw guide plate is provided so as to be capable of expanding and contracting with respect to the straight longitudinal guide plate. 3. A circular saw guide ruler, wherein the circular saw guide plate is made of a material that can be cut by a circular saw.