Cutting blade and mounting mechanism for cutting blade
AssigneeDisco Corporation
InventorsKazuma Sekiya, Yuichiro Matsumi
Life of this patent
Estimating the term…
Abstract
A cutting blade is mounted on a fixed flange having a cylindrical blade mounting portion. The cutting blade includes an annular blade main body having an outer circumference serving as a cutting edge and a central through-hole that has a diameter greater than an outer diameter of the blade mounting portion and in which the blade mounting portion is to be fitted, and three or more flexible inner circumferential protrusions that project from an inner circumference of the central through-hole toward the center in a diametrical direction and contact at extremities thereof with the blade mounting portion fitted in the central through-hole to support the annular blade main body.
Claims3
A cutting blade of an annular shape for being mounted on a fixed flange having a cylindrical blade mounting portion fixed to a distal end of a spindle, comprising:
- an annular blade main body having an outer circumference serving as a cutting edge and a central through-hole that has a diameter greater than an outer diameter of the blade mounting portion and in which the blade mounting portion is to be fitted;
- and
- three or more flexible inner circumferential protrusions that project from an inner circumference of the central through-hole toward the center in a diametrical direction and contact at extremities thereof with the blade mounting portion fitted in the central through-hole to support the blade main body, wherein
- as viewed in plan, a circle interconnecting the extremities of the inner circumferential protrusions and a circle defined by an outer circumference of the blade main body are formed concentrically, and when the cutting blade is to be mounted on the fixed flange, the inner circumferential protrusions are deformed by pressure contact with the blade mounting portion into which the cutting blade is fitted to allow the fitting of the cutting blade with the blade mounting portion.
A mounting mechanism for a cutting blade that includes an annular blade main body having an outer circumference serving as a cutting edge and a central through-hole, and three or more flexible circumferential protrusions formed integrally with the annular blade main body and projecting from an inner circumference of the central through-hole toward the center in a diametrical direction, the mounting mechanism comprising:
- a fixed flange including a blade mounting portion fixed to a distal end of a spindle of a cutting apparatus and having a male thread on an outer circumference thereof and a flange portion formed integrally with the blade mounting portion behind the blade mounting portion;
- a removable flange configured to be mounted on the blade mounting portion so as to cooperate with the flange portion of the fixed flange to sandwich therebetween a cutting blade mounted on the blade mounting portion of the fixed flange;
- and
- a fixation nut configured to be screwed with the male thread of the fixed flange such that the cutting blade is sandwiched and fixed between the flange portion of the fixed flange and the removable flange, wherein,
- if the fixation nut is screwed with the male thread of the fixed flange and is tightened, then the inner circumferential protrusions are pressed against and deformed by the blade mounting portion and the annular blade main body is supported by the inner circumferential protrusions.
Dependencies are inferred from the claim text.