JPH0632004U - Circular saw - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a circular saw that can finish a cut surface by a saw tooth smoothly when cutting a material such as a gypsum board using a circular saw machine. [Structure] In a circular saw 3 in which saw teeth 32 are formed on an outer peripheral portion of a disc 31, a file 35 is provided on at least one surface side of the disc 31. The file 35 is provided in a ring shape. [Effect] Since the circular saw 3 is provided with the ring-shaped file 35 on at least one surface side of the disc 31 having the saw teeth 32 on the outer peripheral portion, when the material such as the gypsum board 1 is cut by the circular saw machine 2, Simultaneously with the cutting by the saw teeth 32, the cut surface can be finished smooth by the side files 35.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates in particular to a circular saw adapted for cutting plasterboard.

[0002]

[Prior art]

 A circular saw machine is used to cut gypsum board for interior use at a construction site.

[0003]

[Problems to be solved by the device]

 However, since the front and back surfaces of gypsum board are made of paper and the gypsum between them is soft, the sawtooth cut surface has a rough shape, and it is difficult to obtain a smooth cut surface with good finish. It was

Therefore, an object of the present invention is to provide a circular saw that can finish the cut surface by the saw teeth smoothly when cutting a material such as a gypsum board using a circular saw machine.

[0005]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention is characterized in that, in a circular saw having saw teeth formed on the outer peripheral portion of a disc, a file is provided on at least one surface side of the disc.

Specifically, a file is provided in an annular shape.

[0007]

[Action]

 Since it is a circular saw that has a ring-shaped file on at least one surface side of a disk with saw teeth on the outer periphery, when cutting material such as gypsum board with a circular saw machine, cut with the side files at the same time as cutting with the saw teeth. The surface is finished smooth.

[0008]

【Example】

 An embodiment of a circular saw according to the present invention will be described below with reference to FIGS. 1 to 3.

First, in FIG. 1 showing a cutting operation of a gypsum board by a circular saw machine as an example to which the present invention is applied, 1 is a gypsum board, 2 is a circular saw machine, and 3 is a circular saw according to the present invention. . As shown in the drawing, the circular saw machine 2 is provided with a handle 22 on a motor body 21, and a circular saw 3 of the present invention is fixed to a rotary shaft end of the motor body 21 by a bolt 23.

Further, the motor unit main body 21 is provided with a cover 24 that covers the upper part of the circular saw 3.

As shown in FIGS. 2 and 3, the circular saw 3 according to the present invention has saw teeth 32 formed on the outer peripheral portion of the disc 31, and has a file 35 on the side surface of the disc 31. To prepare for one.

That is, the disc 31 has saw teeth 32 formed on the outer peripheral portion thereof and a mounting hole 33 formed at the central portion thereof.

An annular file 35 is integrally bonded to the side surface of the disc 31 by adhesion. In the example of FIG. 3, the annular files 35 and 35 are integrally provided on both side surfaces. .

The ring-shaped file 35 has a thickness slightly protruding laterally from the sawteeth 32, and an outer peripheral edge portion 36 thereof is arranged close to the inner peripheral side of the sawteeth 32.

Next, the cutting of the gypsum board 1 by the circular saw machine 2 equipped with the circular saw 3 will be described.

That is, as shown in FIG. 1, the circular saw 3 is rotated by the drive of the motor, and the gypsum board 1 is cut by the saw teeth 32 on the outer periphery thereof, and at the same time, the cutting is performed by the side files 35. The surface is shaved and finished smooth.

Moreover, since the circular saw 3 of the embodiment is provided with the rasps 35, 35 on both side surfaces thereof, both cut surfaces of the gypsum board 1 can be finished smooth.

Therefore, the terminal treatment of the paper portion on the front and back surfaces of the gypsum board 1 is improved, and the gypsum board 1 can be used as it is for the interior sticking work.

Although the circular saw for cutting the gypsum board is used in the above embodiments, the circular saw of the present invention is not limited to this and may be used for cutting other wood. . Further, a file may be provided only on one side of the circular saw, and the method of adhering the file is arbitrary.

[0020]

[Effect of device]

 As described above, according to the circular saw according to the present invention, since a file such as an annular ring is provided on at least one surface side of a disk having saw teeth on the outer peripheral portion, a gypsum board or the like by a circular saw machine is provided. At the time of cutting the material, at the same time as cutting with the saw teeth, the cut surface can be finished smooth by the side files.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing a cutting operation of a gypsum board by a circular saw machine as an example to which the present invention is applied.

FIG. 2 is a schematic side view showing a surface side provided with a file of a circular saw according to the present invention.

FIG. 3 is a central longitudinal sectional view of a circular saw according to the present invention.

[Explanation of symbols]

 1 Gypsum Board 2 Circular Saw Machine 21 Motor Body 22 Handle 23 Bolt 24 Cover 3 Circular Saw 31 Disc 32 Saw Blade 33 Mounting Hole 35 Rasp

Claims (2)

[Scope of utility model registration request] 1. A circular saw having saw teeth formed on an outer peripheral portion of the disc, wherein a file is provided on at least one surface side of the disc. 2. The circular saw according to claim 1, wherein the file is provided in an annular shape.