JP3069786U - Disc grinding tool - Google Patents

Abstract

(57) [Summary] [PROBLEMS] The present invention provides a disk grindstone tool which can quickly and easily form an arc-shaped groove of a set depth in an eyeglass lens without having experience or skill. To provide. SOLUTION: A disk grinding wheel 1 of a disk grinding wheel tool 10 is provided.
2 is formed in a disk shape. This disk whetstone 12
The base end 18A of the grinding wheel shaft 18 is located at the center of one side surface 12B.
Is fixed, and the grindstone shaft 18 is attached to one side 1 of the disc grindstone 12.
2B. A stopper 20 formed in a cylindrical shape is provided outside the grindstone shaft 18, and when the grindstone shaft 18 rotates, the stopper 20 also rotates.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a disk grinding tool that forms an arc-shaped groove used when attaching a chin and a nose pad to an eyeglass lens.

[0002]

[Prior art]

 Tomo and nose hooks are fixed to the spectacle lens of the glasses. A male screw is protruded from the tongue and nose hook, and this male screw is inserted into a male screw part insertion hole formed in the spectacle lens and tightened with a nut. To be fixed. By the way, in recent years, in order to stably attach the wisdom and nose hook to the spectacle lens, an arc-shaped projection 2 having an arc shape in a side view is provided at the base end of the male screw portion 1 of the wisdom and nose hook as shown in FIG. The provided wisdom and nose rest are proposed. When this type of wisdom or nose rest is attached to the spectacle lens 3, a male screw portion insertion hole 4 is formed in the spectacle lens 3, and the arc-shaped projection 2 fits and is accommodated. The groove 5 needs to be formed in the spectacle lens 3. However, since the depth of the arc-shaped groove 5 in the spectacle lens 3 at which the arc-shaped protrusion 2 fits and fits in the arc-shaped groove 5 requires experience and skill, The arc-shaped groove 5 cannot be easily formed.

[0003]

[Problems to be solved by the invention]

 The present invention has been made in view of the above facts, and provides a disk whetstone tool that can quickly and easily form an arc-shaped groove in a spectacle lens with a set depth without any experience or skill. To provide.

[0004]

[Means for Solving the Problems]

 The invention of claim 1 is a disk grinding tool which is mounted on a grinding machine and is used when a groove is formed in an eyeglass lens. The disk grinding tool is formed in a disk shape and grinds an eyeglass lens. One end is fixed to the center of one side of the grindstone, and the other end is attached to the grinding machine. A grindstone shaft is inserted into the grindstone shaft, and the grindstone shaft is covered and rotated together with the grindstone shaft. And a stopper for stopping rotation when the outer peripheral surface comes into contact with the spectacle lens.

[0005]

[Embodiment of the invention]

 1 to 5 show one embodiment of a disk tool grinding wheel according to the present invention. As shown in FIG. 1, the disk whetstone 12 of the disk whetstone tool 10 is formed in a disk shape, and is formed into an arcuate shape (see FIG. 5) on the outer surface 12A of the disk whetstone 12 on the surface 14A of the eyeglass lens 14. The arc-shaped groove 16 is ground. This disk grinding wheel 12 is formed by mixing diamond fine particles and metal powder and sintering it into a disk shape. As shown in FIG. 2, a base end portion 18A of a grinding wheel shaft 18 is fixed to the center of one side surface 12B of the disk grinding wheel 12, and the grinding wheel shaft 18 protrudes from one side surface 12B of the disk grinding wheel 12. It has become so. The tip portion 18B of the grinding wheel shaft 18 is mounted on a known grinding machine (not shown) and the grinding machine is started so that the grinding wheel shaft 18 and the disk grinding wheel 12 rotate at high speed. As shown in FIGS. 1 to 4, a stopper 20 formed of a synthetic resin material in a cylindrical shape is provided outside the grindstone shaft 18 so that when the grindstone shaft 18 rotates, the stopper 20 also rotates. Has become. However, the stopper 20 is merely attached to the grindstone shaft 18 by inserting the grindstone shaft 18 having an outer diameter slightly larger than the inner diameter of the stopper 20 into the stopper 20. For this reason, as shown in FIG. 4, when the outer peripheral surface 20 </ b> A of the rotating stopper 20 comes into contact with the eyeglass lens 14, the grinding wheel shaft 18 continues to rotate, but the stopper 20 stops due to frictional resistance with the mechanical lens 14. It has become. The depth dimension of the arc-shaped groove 16 to be ground on the spectacle lens 14 is a dimensional difference A (see FIG. 2) between the radius dimension of the disk grindstone 12 and the radius dimension of the stopper 20. Therefore, when it is desired to increase the depth of the arc-shaped groove 16 to be ground on the spectacle lens 14, the outer diameters of the disc grindstone 12 and the stopper 20 are set so that the dimensional difference A (see FIG. 2) increases. When it is desired to reduce the depth dimension of the arc-shaped groove 16, it is desirable to set the outer diameters of the disc grindstone 12 and the stopper 20 so that the dimensional difference A (see FIG. 2) is reduced, thereby easily grinding. An arc-shaped groove 16 having a depth can be formed.

Next, the operation of the disc grindstone tool 10 according to the embodiment will be described with reference to an example in which the arc-shaped groove 16 is formed in the eyeglass lens 14. When the arc-shaped groove 16 is formed on the surface 14A of the spectacle lens 14, the tip 18B of the grinding wheel shaft 18 of the disk grinding tool 10 is mounted on the grinding machine and the grinding machine is started. Thereby, the grinding wheel shaft 18, the stopper 20 and the disk grinding wheel 12 also rotate at high speed. Then, an eyeglass lens 14 previously formed with a male screw insertion hole 22 (see FIG. 5) is fixed to a grinding machine by an appropriate means, and the outer peripheral surface 12A of the disc grindstone 12 is brought into contact with the surface 14A of the eyeglass lens 14. Then, the glass lens 14 is ground by pressing, and the arc-shaped groove 16 starts to be formed. Further, when the outer peripheral surface portion 12A of the disk whetstone 12 is pressed against the eyeglass lens 14, the arc-shaped groove 16 is deeply ground. However, when the arc-shaped groove 16 has a constant depth, the outer peripheral surface 20A of the stopper 20 is deformed. The rotation of the stopper 20 is stopped due to frictional resistance because it comes into contact with the surface 14A of the spectacle lens 14 (see FIGS. 4 and 5). Thus, the operator can see at a glance that the arc-shaped groove 16 has been polished to a certain depth only by looking at the stopper 20 that has stopped rotating, so that the eyeglass lens 14 is separated from the disk grindstone 12. Then, the eyeglass lens 14 is removed to complete the arc-shaped groove 16 forming operation. Therefore, in the disk grinding wheel tool 10 of the present invention, the rotation of the stopper 20 is stopped at the same time as the arc-shaped groove 16 is ground to the set depth, so that the operator knows that the arc-shaped groove 16 is formed. Therefore, the arc-shaped groove 16 having the set depth can be formed in the spectacle lens 14 without any skill.

In the embodiment, the disk grinding stone 12 is formed by mixing diamond fine particles and metal powder and sintering into a disk shape. However, the material of the disk grinding stone 12 is of course not limited. .

[0008]

[Effect of the invention]

 The disc wheel tool of the present invention has an excellent effect that an arc-shaped groove having a set depth can be quickly and easily formed in an eyeglass lens without having experience or skill.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a disk grindstone tool according to an embodiment.

FIG. 2 is a front view of the disk grindstone tool of the embodiment.

FIG. 3 is a front view showing a use state of the disk grindstone tool of the embodiment.

FIG. 4 is a front view showing a use state of the disk grinding tool of the embodiment.

FIG. 5 is a side view showing a use state of the disk grindstone tool of the embodiment.

FIG. 6 is a partially enlarged longitudinal sectional view showing a case where the tomo is attached to a spectacle lens.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Disc grindstone tool 12 Disc grindstone 12A Outer peripheral surface part 12B One side surface 18 Grindstone shaft 20 Stopper

Claims (1)

[Utility model registration claims] Claims 1. A disc grindstone tool which is mounted on a grinder and used for forming a groove in an eyeglass lens,
A disk whetstone formed in a disk shape and grinding an eyeglass lens, a whetstone shaft having one end fixed to the center of one side of the disk whetstone and the other end attached to the grinding machine, and this whetstone shaft inserted And a stopper that is externally mounted on the grinding wheel shaft, rotates together with the grinding wheel shaft, and stops rotating when the outer peripheral surface comes into contact with the spectacle lens.