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Circular saw blade

A circular saw blade and tooth technology, applied in the field of circular saw blades, can solve the problems of increasing the number of processes and increasing the production cost, and achieve the effect of suppressing the clogging of sawdust and improving the quality

Active Publication Date: 2013-11-13
KANEFUSA HAMONO KOUGIYOU KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method increases the number of processes, thereby causing another problem of increased production cost

Method used

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  • Circular saw blade
  • Circular saw blade
  • Circular saw blade

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0020] figure 1 is a front view showing a general appearance of a circular saw blade 30 having a plurality of teeth arranged at the same pitch at a peripheral portion of a circular saw blade body 12 (hereinafter referred to as "circular saw blade body"). A tooth portion 14, wherein the body 12 of the circular saw blade is made of circular basic metal. In use, the circular saw blade body 12 rotates rapidly in one direction (rotational direction) about the center of rotation O. The tooth portion 14 has a tooth body 16 extending outward from a peripheral portion of the circular saw blade body 12, and a hard chipper for cutting a workpiece provided at a face (front face 14a) facing the rotational direction of the tooth body 16. 32.

[0021] Between the adjacent tooth portions 14, 14 at the peripheral portion of the circular saw blade body 12, a sawtooth groove 20 retaining sawdust generated during cutting is formed. The sawtooth groove 20 has a curved shape that is concave towa...

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PUM

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Abstract

The present invention provides a circular saw blade, capable of preventing stiffness of the teeth part from being low so as to improve the quality of a cutting surface. A cutting position angle is configured to be 0.25 to 0.5 time of a tooth nib central angle, and is defined by a cutting position line by connecting an open end of an incision and a rotary center relative to a referrence imaginary line by connecting the teeth nib of backward teeth part and the rotary center, and the teeth nib central angle is defined by the tooth nibs of two teeth part clipping one incision. The cutting position angle is more than a groove bottom position angle, which is defined by a groove bottom line by connecting the groove bottom of the teeth groove and the rotary center relative to the referrence imaginary line by connecting the tooth nib of backward teeth part and the rotary center. Furthermore, a closed end position angle is configured to be 0.25-0.5 time of the tooth nib central angle, and is defined by a closed end position line by connecting the closed end of the incision and the rotary center relative to the referrence imaginary line by connecting the tooth nib of backward teeth part and the rotary center.

Description

technical field [0001] The present invention relates to a circular saw blade having slits, each of which is between teeth provided at the peripheral portion of the circular saw blade body, from the peripheral portion to the circular saw blade body. cut through the center of rotation. Background technique [0002] As shown in FIG. 6, a circular saw blade 10 for cutting wood, steel, etc. has a body 12 made of a circular base metal, and has a plurality of circular saw blades arranged at a predetermined tooth pitch. The tooth portion 14 at the peripheral portion of the sheet body 12 (see Japanese Patent Application Laid-Open No. 2005-119205). Each tooth portion 14 has a tooth body 16 extending from a peripheral portion of the circular saw blade body 12 , and cutting teeth 18 provided on a face facing the rotational direction of the tooth body 16 . A gullet 20 is formed between the adjacent tooth portions 14 , 14 to remove sawdust generated by cutting the workpiece to be cut. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23D61/02B27B33/08
CPCB23D61/025
Inventor 大场正树西尾悟
Owner KANEFUSA HAMONO KOUGIYOU KK