JP2000202770A - Grindstone flange for thin blade grindstone - Google Patents

Abstract

PROBLEM TO BE SOLVED: To exactly fix a grindstone to a flange and to cause no vibration without deforming the flange by pressing down the grindstone by a collar and a projection. SOLUTION: In this grindstone flange for a thin blade grindstone, a thin blade grindstone 10 is clamped between two sheets of flanges 12 having a collar 11 on an outer periphery thereof and is tightened from one side surface side of two sheets of flanges 12 by a presser nut 16. The thin blade grindstone 10 is pressed down to the collar 11 of the outer periphery of the flange 12 and fixed. Projections having approximately the same height as that of the collar 11 around a pitch circle of the presser nut is provided on two sheets of collars 11 respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a grinding wheel flange for a thin blade grinding wheel.

[0002]

2. Description of the Related Art A conventional grinding wheel flange for a thin blade grindstone has two flanges 1 and 2 having a collar at a circumferential portion as shown in FIG.
The thin blade whetstone 3 is interposed therebetween, and the flanges 1 and 2 and the thin blade whetstone 3 are axially inserted into the shaft 4, and then tightened by the holding nut 5.

[0003]

However, if the presser nut 5 is continued to be tightened as shown in detail in "a" part of FIG. 4, the flange is deformed, and the collar becomes one side so that the grindstone cannot be fixed. , Causing the whetstone to swing.

SUMMARY OF THE INVENTION An object of the present invention is to provide a grinding wheel flange for a thin blade grinding wheel which eliminates the above-mentioned disadvantage that the grinding wheel cannot be fixed to the flange and causes a run-out.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, according to the present invention, a thin blade grindstone is sandwiched between two flanges having a collar on the outer peripheral portion, and tightened with a holding nut from one side of the two. The thin blade whetstone is pressed by the collar on the outer peripheral portion of the flange, and in the whetstone flange for the thin blade whetstone, a protrusion having substantially the same height as the collar is provided near the pitch circle of the holding nut in each of the two collars. Thus, a whetstone flange for a thin blade whetstone is provided.

It is best if the projections are continuous or intermittent in the circumferential direction.

According to this apparatus, the flange is not deformed, and the grindstone is pressed by the collar and the projection. The grindstone is also firmly fixed to the flange, and no run-out occurs.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. The thin blade whetstone 10 is sandwiched between flanges 12 and 13 provided with a collar 11 on the circumference, and has a large diameter portion 14 at one end and a male screw at the other end.
5 and tightened by a holding nut 16 screwed into the male screw at the other end. The flange 12
The height h of the same height as the collar 11 which is continuous in the circumferential direction at the pitch circle position of the presser nut 16 is provided at the portion corresponding to the counter presser nut side of the flange 13 and the counter presser nut side of the flange 13.
Projection 17 is provided.

Here, the projections 17 may be not only continuous in the circumferential direction but also intermittent.

Since the configuration is as described above,
The whetstone is firmly fixed without deformation of the flange due to the tightening of the holding nut, so that run-out is eliminated.

[00011]

According to the present invention, the disadvantage that the grindstone is unsatisfactorily fixed and the grindstone oscillates due to the deformation of the flange caused by the tightening of the conventional presser nut has been solved.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a grinding wheel flange for a thin blade grinding wheel showing one embodiment of the present invention.

FIG. 2 is an explanatory view of a grinding wheel flange for a thin blade grinding wheel showing one embodiment of the present invention, and is a cross-sectional view along AA in FIG. 1;

FIG. 3 is an explanatory view of a conventional grinding wheel flange for a thin blade grinding wheel.

FIG. 4 is an explanatory view of a conventional grinding wheel flange for a thin blade grinding wheel, and is a detailed view of an “A” part in FIG. 3;

[Explanation of symbols]

 10 Thin blade whetstone 11 Collar 12 Flange 13 Flange 14 Large diameter part 15 Shaft 16 Presser nut

Claims (3)

[Claims] 1. A thin blade grindstone is sandwiched between two flanges having a collar on the outer peripheral portion, and the thin blade grindstone is pressed and fixed by a holding nut from one side of the two to fix and fix the thin blade grindstone by the collar on the outer peripheral portion of the flange. A thin-wheel grinding wheel flange for thin blades, characterized in that the two flanges are provided with protrusions having substantially the same height as the collars near the pitch circle of the presser nut in each of the two collars. 2. The grinding wheel flange for a thin blade grinding wheel according to claim 1, wherein said projections are continuous in a circumferential direction. 3. The grinding wheel flange for a thin blade grinding wheel according to claim 1, wherein said projection is interrupted in a circumferential direction.