JP2010012798A - Ruler for circular saw - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To quickly and accurately cut a material into a straight line by making a dedicated ruler matching a width from the end of a circular saw base to a cutting blade with a single circular saw to be used. <P>SOLUTION: A lower plate 1, an upper plate 2 and a cutting face contact point plate 3 are assembled, and the cutting face contact point plate is cut with a single circular saw to complete the ruler. Since the cut down face is in the same position as an inside of the cutting blade 9, when cutting building materials of internal and exterior facings with the circular saw, the material of any angle and irregularity can be cut into an accurate straight line by instantaneously setting the ruler to a cutting line and marks of two points of both ends. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a ruler for a circular saw that marks both ends of an inner / exterior plate to be used, or draws a line and cuts a straight line according to a dimension.

  At the construction site, a line was drawn on the interior and exterior boards and cut using a circular saw with craftsmanship.

  Even with craftsmanship, it is almost impossible to cut a perfect straight line using a circular saw. Therefore, it is time and labor burden to correct with Kanna and File. In addition, in the conventional angle ruler, one point before the cutting line and one point of the circle must be aligned, and if the material has a surface, it is difficult to determine the contact point at which cutting starts. Therefore, the edge of the cutting contact plate and the inside of this tooth of the circle are solved with a circular saw ruler in the same position.

  The present invention is a combination of three plates consisting of a lower plate, an upper plate, and a cut surface contact plate. This is a ruler for a circular saw that is made by cutting off the contact surface plate along the plate. The lower plate and the upper plate are fixed with bolts and nuts, and the heads of the bolts are polygonal and are flat into the lower plate. The upper plate is provided with a screw groove for moving left and right, and the cut surface contact plate is attached with double-sided tape and can be replaced with a new one after final use.

  In the circular saw ruler of the present invention, since the end of the cutting surface contact plate and the inside of the cutting teeth are in the same position, the flat material is natural, the uneven material, the angled material at any angle, two points at both ends, Alternatively, a ruler can be instantly fitted on the two extended lines to cut a complete straight line according to the dimensions.

(A) is a plan view showing an embodiment of a circular saw ruler according to the present invention (B) is a cross-sectional view taken along line AA. 1 is applied to a conventional ruler (a) is a plan view, and (b) is a cross-sectional view taken along the line BB. Part diagram of a circular saw ruler Use of circle saw ruler Usage of conventional angle ruler

  Even with the same type of circular saw, the width from the edge of the circular saw base to the cutting teeth differs by several millimeters depending on the manufacturer, so the circular saw ruler is assembled and the upper board is fixed to the right and the upper board is used. Turn the circular saw and cut the cut contact plate. The ruler dedicated to the circle saw is completed. Place a mark on the material, align the ruler, fix it with your limbs, and cut it with a circular saw. If the cut contact surface is damaged or if another circular saw of the same type is used, move the upper plate slightly to the left to recut the cut contact plate and replace it with a new one after final use.

  The present invention comprises three sheets, a lower plate, an upper plate, and a cut surface contact plate. The length of the three plates is slightly longer than the standard size of plywood or the like, and is the same size for the three plates. The lower plate is made of a suitable material such as durable plastic, and several bolt screw holes are drilled to secure it to the upper plate. A polygonal moat is provided so as to prevent idling so that the head of the bolt is buried in the lower plate. The end of the lower plate has an L-shaped structure for attaching a cut surface contact plate. The width is the sum of the upper and lower plates, when the upper plate is full left, the dimensions several millimeters shorter than the width from the edge of this base to the cutting teeth, the width of the upper plate, and the pressing part when in use. The upper plate uses the same material as the lower plate. Make a screw groove for the upper plate to move sideways at the same position as the screw holes on the lower plate. The contact surface with the circular saw stand is a plate that can maintain a straight line.

  The cut surface contact plate has an inverted L-shaped cross section, and is detachably attached to an L-shaped structure mounting portion on one side edge of the lower plate using a double-sided tape or the like. Since the cut surface contact plate is cut so as to have a constant width in the length direction, a material having a certain rigidity is used without being peeled by a plywood or a soft plastic. When the upper plate is fixed to the right in FIG. 1 (b) in the width direction, the width is several millimeters longer than the width from the end of the circular saw base to the cutting teeth. The head of the bolt is embedded in the same shape as the bottom plate. Make the nut thin with the handle. Assemble the above parts, fix the upper plate to the right, and cut the cutting surface contact plate along the upper plate with a single circular saw. Even with the same type of circular saw, the width from the end of the circular saw base to the cutting teeth is several millimeters different. The width of the lower plate is based on the smallest circular saw, and the width of the cut surface contact plate is based on the largest circular saw.

  Embodiments will be described below with reference to the accompanying drawings. In FIG. 1, a cut surface contact plate 3 is attached to one side edge of the lower plate 1 with a double-sided tape. Then, the upper plate 2 is overlapped with the lower plate 1, and the upper plate 2 having the bolt groove 7 is fixed to the right in the width direction with the bolt 5 and the nut-use handle 4, and a single circular saw base The end of 8 is aligned with the upper plate, and the cut surface contact plate is cut off to complete. Use it as a set of circles using the completed ruler. The lower plate 1 has the same shape as that of the head of the bolt 5 and has a flat bottom for preventing idling. Since the upper plate 2 has the bolt grooves 7, it moves to the left and right. When the cut end of the cut surface contact plate 3 is damaged or another circular saw of the same type is used, the upper plate 2 is shifted to the left in the width direction and cut again.

  FIG. 2 shows an example in which the circular saw ruler of the present invention is attached to a conventional free ruler.

  In FIG. 3, (A) is the lower plate 1, (B) is the upper plate 2, and (C) is the cut surface contact plate 3. The lengths of the lower plate 1, the upper plate 2, and the cut surface contact plate 3 are slightly longer than the standard dimensions of the most used plywood or the like and have the same dimensions. (D) shows a bolt 5, (e) a nut combined handle 4, and (f) an example in which the upper plate 2 is attached to the lower plate 1 in the case of a free ruler. The lower plate 1 uses the minimum thickness that can maintain strength, the upper plate 2 uses the minimum thickness that the circular saw base does not escape and keeps a straight line, and the cutting surface contact plate 3 uses a material that does not repel even if cut with a circular saw To do.

  FIG. 4 uses the ruler and the circular saw completed in FIGS. (A) is a front view, (B) and (C) are plan views. The building material 10 is marked 11 to indicate the cutting location, the building material 10 is placed on the table, the side edges of the cutting surface contact plate 3 of the ruler are aligned with the mark 11 and fixed with limbs, and the circular saw table 8 is fixed to the upper plate 2. Then cut the building material.

  5A and 5B show a conventional angle-adjustable ruler. FIG. 5A is a front view and FIG. 5B is a plan view. The marking 11 on the building material 10 is the same as the ruler of the invention, but the conventional angular ruler must be aligned with the cutting tooth 9 at the mark 11 at the front. If there is a surface or unevenness in the material or the angle changes, it is difficult to understand the contact point at the beginning of cutting. Since the angle ruler of the present invention fits both ends of the indicia 11 or the entire extension line as shown in FIG.

DESCRIPTION OF SYMBOLS 1 Lower board 2 Upper board 3 Cutting surface contact board 4 Nut handle 5 Bolt 6 Bolt hole 7 Bolt groove 8 Circular saw stand 9 Cutting tooth 10 Building material 11 Indicating

Claims (2)

  A long lower plate having a constant width, an upper plate having a width smaller than the width of the lower plate provided on the lower plate, and detachably attached along a side edge on at least one side of the lower plate. A circular saw ruler made of possible cut surface contact plates, wherein the upper plate is movable in the width direction relative to the lower plate.   The lower plate and the upper plate are fixed with bolts and nuts, the head of the bolt is polymorphic and inserted flat into the lower plate, and the upper plate is provided with a screw groove for moving left and right. The ruler for a circular saw according to claim 1, wherein the ruler is used.

Images