Method for manufacturing treatment device and treatment device
a treatment device and treatment device technology, applied in manufacturing tools, teeth capping, dental surgery, etc., can solve the problems of complex inventory control and production control, the difference of the distance between the central axis of the grinding raw material and the ground surface, and the increase in the number of kinds of grinding raw materials. , to achieve the effect of good balance, no eccentricity formation, and easy operation
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example 1
[0037]At first, a typical example of the treatment device according to the invention will be described referring to the drawing. FIG. 1 shows a configuration of a reamer which is of the dental treatment device. A reamer A shown in FIG. 1 is the device which cuts an inner wall surface of a root canal. The reamer A includes a needle portion 1 and a handle 2 attached to an end of the needle portion 1. The reamer A is mainly utilized by attaching the reamer A to a rotating tool such as a handpiece.
[0038]In the needle portion 1, a tapered working portion 4 is formed over the given length range from a leading end 3. A rod-shaped shank 5 is formed on the handle 1 side of the needle portion 1. A raise portion 6 is formed between working portion 4 and the shank 5. The taper of the working portion 4 is set at 2 / 100 in the K file of the H file pursuant to an international standard (ISO). A reference position in specifying or measuring the sectional size of the working portion 4 is set at a pos...
example 2
[0045]Then, a configuration of a grinding apparatus which can perform a grinding method according to the invention will be described referring to the drawings. FIG. 2 is a schematic side elevation showing a whole configuration of the grinding apparatus. FIG. 3 is a sectional view taken along line III-III of FIG. 2. FIG. 4 shows a main part of the grinding apparatus.
[0046]In the drawings, a grinding apparatus B includes a chuck 12 which grasps a grinding raw material 11, a grindstone 13 which grinds the grinding raw material 11, and a press block 14 which presses the grinding raw material 11 toward the grindstone 13 side.
[0047]The grinding raw material 11 is formed in a thin straight bar with no diameter change. One grinding raw material 11 or the plural grinding raw materials 11 are ground while grasped in the chuck 12. The chuck 12 is arranged opposite a grinding surface 13a which is of a peripheral surface of the grindstone 13. The chuck 12 allows the axial direction of the grindi...
example 3
[0058]Then, the grinding method according to Example 3 of the invention will be described referring to drawings. FIG. 5 is a view showing pre-grinding to the grinding raw material 11. FIG. 6 is a view for explaining the state in which the pre-grinding is performed to a pre-grinding surface to which the pre-grinding is already performed. FIG. 7 is a view for explaining the state in which the grinding is performed to the pre-grinding surface.
[0059]The grinding raw material 11 shown in FIGS. 5 to 7 is the raw material for producing the reamer A shown in FIG. 1. In the grinding raw material 11, cold wire drawing is performed to a wire rod made of austenitic stainless steel at a predetermined diameter-reduction ratio to realize work hardening, and a texture elongated in a fibrous shape is realized to exert strength against bending. When the grinding raw material 11 is ground to form the cutting edge, grinding performance can be secured in the cutting edge. Even if the bending force is ap...
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Abstract
Description
Claims
Application Information
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