JPH04130809U - Saw blade structure in circular saw - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a thin saw blade that is easy to attach to an output shaft. [Structure] The saw blade 10 fixed to the output shaft J of the motor M with a speed reducer includes a cutting disc part 11 and a cutting disc part 11.
and a truncated conical portion 12 for chamfering.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a saw blade structure for a circular saw.

0002

[Conventional technology]

Generally, a circular saw S is known for cutting plate materials and the like. Specifically, Figure 5 As shown in the figure, both sides of the plate material A are pressed from above by pressing rollers R, A circular saw S, which is installed at a predetermined position, conveys the plate material A in cooperation with a conveyor that does not operate. S is used to cut the plate material A into a set width. And the circular saw S is the cutting tool. A saw blade C with diamond powder electrodeposited on the part and a reducer with this saw blade C fixed to its output shaft. It is composed of a motor M.

0003 In this case, the saw blade C is a cutting circle that cuts the plate material A to a set width, as shown in FIG. A disk blade C1 and a surface that chamfers the corner of the surface cut by the cutting disk blade C1. It is constructed by overlapping the truncated conical blade C2 for removal, and is connected to the output shaft of the motor M with a reduction gear. These cutting disc blades C1 and truncated conical disc blades for chamfering are attached to the collar K in which the mounting holes are formed. They are inserted in the order of C2 and tightened and fixed with nuts N.

0004

[Problem that the idea aims to solve]

However, in such a saw blade C, the cutting disc blade C1 and the truncated conical disc for chamfering are Since the minimum thickness of each blade C2 is specified so that it can withstand the cutting load, The overall thickness of the saw blade C has to be large, which increases the cutting resistance and makes a lot of noise. There was a problem with the noise. Moreover, the cutting disc blade C1 and the chamfering truncated conical disc blade C 2 must be connected and attached to the output shaft of the motor M with a reducer, which makes the work complicated. It had become.

[0005] The present invention was developed in view of these problems, and aims to reduce the overall wall thickness. At the same time, it provides a saw blade structure for a circular saw that is easy to handle.

[0006]

[Means to solve the problem]

This invention consists of a motor with a reducer and a cutting section attached to the output shaft of this motor. A circular saw consisting of a saw blade with diamond powder etc. electrodeposited on it and a fixing member for this saw blade. The saw blade includes a cutting disc portion and a cutting disc portion that is formed on at least one side of the cutting disc portion. It is characterized by being composed of a truncated conical portion for chamfering formed on the body. Ru.

[0007]

[Effect]

The saw blade attached to the output shaft of the motor with a reducer has a cutting disc part and a cutting part. It is composed of a disc part and a truncated conical part for chamfering that is integrated with the disc part.

[0008] As a result, the overall thickness of the saw blade can be reduced, reducing noise and at the same time The motor can be easily attached to the output shaft.

[0009]

【Example】

Embodiments of the present invention will be described below with reference to the drawings.

0010 In FIGS. 1 to 3, the configuration of the circular saw S etc. shown in FIGS. 4 and 5 is also shown. are the same, the same symbols will be used as they are, and their explanations will be Omitted.

[0011] The saw blade 10 in the present invention includes a cutting disc part 11 for cutting a plate material A, etc. Necessary chamfering is applied to the cut surface of the plate material A etc. cut by the cutting disc part 11. For this purpose, a chamfer is formed on one side of the cutting disc part 11 integrally with the cutting disc part 11. It is composed of a truncated conical disk portion 12. Then, the chamfer that becomes the cutting part of the saw blade 10 A conical surface 12a of the truncated conical disk portion 12 for cutting, and a cutting disk continuous to the conical surface 12a. Diamond powder is electrodeposited on the side surface 11a of the portion 11.

0012 This saw blade 10 is attached to a fixed flange F provided on an output shaft J of a motor M with a reduction gear. and the presser flange B serving as a fixing member. There is. That is, when attaching such a saw blade 10 to a circular saw S, The mounting hole 10a of the saw blade 10 is fitted to the output shaft J of the motor M, and the saw blade 10 is fixed to the output shaft J. With the inner surface of the saw blade 10 in contact with the fixed flange F, the screw formed on the output shaft J is Screw the holding flange B onto the jig part j, and attach the saw blade 10 to the fixed flange F and the holding flange. It may be fixed by pressing and clamping between the screws and the screws B (see FIG. 1).

[0013] In this case, since the saw blade 10 is integrally formed, the entire saw blade 10 is resistant to the cutting load. Because it is received by the cutting disk, its thickness, especially the thickness of the cutting disc part 11, can be made thinner. Ru. As a result, the noise generated during cutting can be reduced, while at the same time Assemble the cutting disc blade and the truncated conical chamfering disc blade, which are divided into parts, overlapping each other. There is no need to attach it directly to the output shaft J of the motor M with a reducer. It is.

[0014] In addition, in this embodiment, the saw blade 10 is connected to the fixed flange F and the pusher as a fixed member. An example of fixing by pressing and clamping with the presser flange B is shown, but the presser flange B It is not limited to fixing with a flange, but varies depending on the structure of the fixing flange. A fixing member can be employed. For example, saw blade, flange versus fixed flange. and then attach this flange to the fixed flange using the bolts as the fixing member. Alternatively, the saw blade may be directly attached to the fixing flange as a fixing member. It may also be fixed with multiple bolts.

[0015] In addition, in this example, a truncated conical disk portion for chamfering is integrated on one side of the cutting disk portion. Although the saw blade formed in the figure is shown, truncated conical disk portions for chamfering are formed on both sides of the cutting disk portion 11. may be completed.

[0016]

[Effect of the idea]

As described above, according to the present invention, the saw blade attached to the output shaft of the motor with a reducer is , consisting of a cutting disc part and a truncated conical part for chamfering which is integrated with the cutting disc part. This makes it easy to attach to a motor with a reducer, and the overall thickness can be made thinner. As a result, the cutting resistance is also reduced, making it possible to reduce noise.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view of each part of a circular saw according to the present invention.

FIG. 2 is an enlarged front view showing how to cut a plate using the circular saw of the present invention.

FIG. 3 is a sectional view showing the saw blade of the present invention.

FIG. 4 is a sectional view showing a conventional saw blade.

FIG. 5 is a perspective view showing a state in which a plate material is cut by a circular saw.

[Explanation of symbols]

10 Saw blade 11 Cutting disk part 12 truncated conical part for chamfering M Motor with reducer J Output shaft F Fixed flange B Holding flange (fixing member)

Claims (1)

[Scope of utility model registration request] [Claim 1] A circular saw consisting of a motor with a speed reducer, a saw blade attached to the output shaft of the motor and having diamond powder or the like electrodeposited on the cutting part thereof, and a fixing member for the saw blade. The saw blade structure for a circular saw is characterized in that the saw blade is comprised of a cutting disc part and a truncated conical part for chamfering integrally formed on at least one side of the cutting disc part.