JP3180663U - Shape of plaster knife blade for dental technician - Google Patents

Shape of plaster knife blade for dental technician Download PDF

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Publication number
JP3180663U
JP3180663U JP2012006345U JP2012006345U JP3180663U JP 3180663 U JP3180663 U JP 3180663U JP 2012006345 U JP2012006345 U JP 2012006345U JP 2012006345 U JP2012006345 U JP 2012006345U JP 3180663 U JP3180663 U JP 3180663U
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gypsum
shape
knife
blade
knife blade
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Expired - Fee Related
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JP2012006345U
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Japanese (ja)
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淳 沼田
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淳 沼田
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Abstract

【課題】刃が折れにくく、石膏に対し効率よく切削できる歯科技工用石膏ナイフを提供する。
【解決手段】ナイフの形状を片刃にして断面形状を曲面に削る。
【選択図】図1
Disclosed is a gypsum knife for dental technicians, which can hardly cut a blade and can be efficiently cut into gypsum.
A cross-sectional shape is cut into a curved surface by using a knife as a single blade.
[Selection] Figure 1

Description

本考案は、歯科技工用に用いられるナイフの刃の形状に関してのものである。 The present invention relates to the shape of a knife blade used for dental technicians.

これまでに歯科技工ように使用するナイフは薄刃で刃が交換式のデザインナイフか、技工用に作られた刃の形状が両刃の石膏ナイフがあった。 Until now, knives used for dental technicians have been thin design blades with interchangeable blades or gypsum knives with double-edged blades made for technicians.

しかし、薄刃のデザインナイフは刃が折れやすく折れた刃先が飛び危険であり、従来からある両刃の石膏ナイフは切削角度が大きすぎ細かい切削に力を入れすぎる傾向があった(図1の2)。この2つのナイフの利点を兼ね備えた歯科技工用の石膏ナイフは存在しなかった。 However, thin blade design knives tend to bend easily and the cutting edge is dangerous, and the conventional double-edged gypsum knives tend to have a large cutting angle and excessive force for fine cutting (2 in FIG. 1). . There was no plaster knife for dental technicians that combines the advantages of these two knives.

解決しようとする問題点は刃が折れにくく、石膏に対し効率よく切削できる刃の形状をした歯科技工用石膏ナイフである。 The problem to be solved is a plaster knife for a dental technician having a blade shape that is difficult to break and can be efficiently cut into gypsum.

ナイフの形状を片刃にすることで石膏を切削する角度を減少させ効率のよい切削を可能とした(図1の1)。刃を片刃にすることで先端部は薄く根元部分の刃厚を大きくすることができ刃を折れにくくした(図2の3)。またナイフの断面形状を直線に削るのではなく、曲面に削ることで(図2の2)石膏に対してクサビ効果を発揮し切削時に少ない力で切削を可能とした(図2の1)。 By making the shape of the knife single-edged, the angle at which gypsum is cut is reduced, enabling efficient cutting (1 in FIG. 1). By making the blade a single blade, the tip portion is thin and the blade thickness of the root portion can be increased, making the blade difficult to break (3 in FIG. 2). In addition, the cross-sectional shape of the knife is not cut into a straight line, but is cut into a curved surface (2 in FIG. 2), and a wedge effect is exerted on the gypsum, thereby enabling cutting with a small force during cutting (1 in FIG. 2).

ナイフを石膏に当てた場合どの角度で切削できるか説明した図である。It is a figure explaining which angle can be cut when a knife is applied to gypsum. ナイフの刃の断面形状と石膏を切削する場合に働く力を説明した図である。It is the figure explaining the force which acts when cutting the cross-sectional shape of a knife blade and gypsum.

図1は、ナイフを石膏に当てた場合の切削可能角度であり1は本考案ナイフで2は従来品である。 FIG. 1 shows the angle at which cutting is possible when the knife is applied to gypsum, where 1 is the inventive knife and 2 is the conventional product.

図2は本考案ナイフで石膏を切削する場合の石膏に対するクサビ効果を示した図であり、1は石膏に対するクサビ効果を示した図であり、2は本考案ナイフの断面である。3はナイフの刃の肉厚を示した図である。 FIG. 2 is a diagram showing a wedge effect on gypsum when cutting gypsum with the inventive knife, 1 is a diagram showing the wedge effect on gypsum, and 2 is a cross section of the inventive knife. 3 is a view showing the thickness of the knife blade.

Claims (1)

歯科技工用石膏ナイフの刃の形状として、刃を片刃に断面形状を曲面にすることで石膏に対してクサビ効果を発揮し、少ない力で石膏を切削できる石膏ナイフの刃の形状。   The shape of a plaster knife blade that can be used to cut gypsum with a small amount of force by exerting a wedge effect on gypsum by using a single-edged blade and a curved cross-sectional shape.
JP2012006345U 2012-10-18 2012-10-18 Shape of plaster knife blade for dental technician Expired - Fee Related JP3180663U (en)

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JP2012006345U JP3180663U (en) 2012-10-18 2012-10-18 Shape of plaster knife blade for dental technician

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JP3180663U true JP3180663U (en) 2012-12-27

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200477092Y1 (en) * 2013-12-27 2015-05-27 김욱태 Graver for dental technician

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200477092Y1 (en) * 2013-12-27 2015-05-27 김욱태 Graver for dental technician

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