JP2022164515A - Corner cutter capable of cutting in curve - Google Patents

Abstract

To provide a corner cutter which can be used even in a curved wall surface in a wall surface end part and a cutting finish of a floor sheet.SOLUTION: A semi-columnar guide is provided in an end of a body, and a gap is provided in the center of the guide for protruding an edge.

Description

The present invention is a knife-shaped corner cutter that is convenient to carry and can cut and finish a floor sheet from end to end even on a curved wall surface.

A conventional floor sheet corner cutter has a guide surface along the wall surface, a base that serves as a bottom surface that slides along the floor surface, and a curved surface that connects the guide surface and the bottom surface. The blade is moved back and forth or up and down with respect to the guide and base and fixed. In this way, the length of the sheet to be cut is determined by the positional relationship between the guide, the base, and the blade, and the corner cutter is pressed onto the sheet gently folded from the floor surface to the wall surface to perform cutting. Normally, the edge of the sheet cut to the intersection of the wall surface and the floor surface is exactly the length. 2 cm. Therefore, if the inclination of the wall changes, the position where the sheet is cut will shift. (Fig. 3) and (Fig. 4)

Japanese Patent Laid-Open No. 50-95900

This had the following drawbacks. Conventional corner cutters are made on the premise that the walls are straight and vertical without bending. However, in construction at the site, there are elliptical walls like the pedestal of a toilet bowl, and there are walls designed in a wave shape, and the degree of curvature may change. In addition, the object to be cut with the sheet may not be vertical. For example, the riser of a staircase is generally inclined toward the front, but the angle of inclination of the plastered riser differs greatly between the right and left sides of a single step. Since the conventional corner cutter cannot cope with such changes in the wall surface, it is impossible to cut the sheet to the exact length. SUMMARY OF THE INVENTION The present invention has been made to eliminate the drawbacks as described above.

The blade is housed inside the handle portion of the main body, and a guide for pressing and bending a semi-cylindrical sheet is provided at the end of the handle. The blade protrudes from the center of the arc of the semi-cylindrical guide and is fixed with a screw. The guide is symmetrical with respect to the blade, and memory is provided on both sides of the guide.

By protruding the blade protruding from the inside of the handle of the main body from the center of the semi-cylindrical arc, it is possible to cut the sheet from end to end from either the left or right. In addition, even when the semi-cylindrical guide is pressed against the sheet and cut, the length of the sheet to be cut can be freely changed by changing the inclination of the main body and changing the angle between the wall surface and the blade. As a result, it is possible to finely adjust the length to be cut during sheet cutting even for a wall whose inclination angle changes or a curved wall. With the memory provided on both sides of the guide, it is easy to make fine adjustments because the angle at which the blade enters, that is, the length of the sheet to be cut can be known. Also, by making the shape of the main body into a knife shape, it is possible to work from the corner texture of the sheet at the corner of the wall surface to the finish of the corner cut without switching to another cutter knife or the like. This also shortens the working time. And since it can be put in a cutter holder compared to conventional ones, it is very easy to carry.

1 is a perspective view of the present invention; FIG. 1 is an exploded perspective view of the present invention; FIG. Fig. 3 is a side view of a vertical wall; Fig. 3 is a side view of a slanted wall; A view from the top of the curved wall

EMBODIMENT OF THE INVENTION Hereinafter, the form for implementing this invention is demonstrated, referring drawings. In this specification and drawings, constituent elements with the same reference numerals have substantially the same structure or function.

FIG. 1 is a perspective view showing a configuration as an example of a corner cutter capable of cutting curved lines according to the present invention. 1 is a grip part that constitutes the main body, and a cutter blade can be stored inside.

Reference numeral 2 denotes a semi-cylindrical sliding base 2, which is the main part, and has a gap that allows the tip of the blade 3 to protrude from the center of the arc. By making the sliding base 2 symmetrical with the blade 3 at the center, the sheet can be cut in either the left or right direction.

When the memory 4 is attached to the side surface of the sliding base and the sheet is cut, the cutting angle at which the blade 3 enters the sheet, that is, the cut length of the sheet can be known by visually checking which memory 4 is in contact with the sheet on the wall surface side.

A blade 3 projecting from the main body 1 is fixed by a set screw 5. - 特許庁By fixing with a screw 5, the protruding length of the blade 3 can be adjusted steplessly. By using two setscrews 5, the blade 3 can be firmly fixed.

Although the preferred embodiments of the present invention have been described with reference to the drawings, the present invention is not limited to the above-described forms. In other words, it is understood that forms or various modifications that can be conceived by those skilled in the art within the scope of the invention described in the claims also belong to the technical scope of the present invention.

1 body grip 2 sliding base 3 blade 4 angle memory 5 set screw 6 gap 7 conventional corner cutter 8 floor sheet 9 intersection of floor and wall 10 guide position 11 floor sheet cutting position 12 floor 13 vertical wall 14 inclined wall 15 curve wall

Claims (1)

A cutter having a semi-cylindrical guide at the end of a main body having a blade and having a gap through which the blade can protrude from the center of the semi-cylindrical guide

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