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    • 61. 发明公开
    • 방진기구를 갖는 치과용 핸드피스
    • DENTAL HANDPIECE具有防尘控制机制
    • KR1020000029329A
    • 2000-05-25
    • KR1019990046665
    • 1999-10-26
    • 가부시키가이샤 나카니시
    • 나카니시다카스케
    • A61C3/00
    • A61C1/181A61C1/05A61C1/057F16C19/547F16C33/80F16C2316/13
    • PURPOSE: A dental piece is provided, which has dust control means that excellently prevent intrusion of contaminants into the bearing. CONSTITUTION: A dental piece(11) has a wall, a bur sleeve(12) for receiving and holding tool therein, a bearing (15,35) for rotatable supporting the bur sleeve(12), a rotatory dust control member(20) fixed on the bur sleeve(12), and a stationary dust control member(21,41) forming a gap in cooperation with the rotary dust control member(20) and the wall of the housing(11) for preventing entry of contaminants inside the housing. The stationary dust control member(21,41) is attached to the bearing (15,35).
    • 目的:提供一种牙科,具有防止污染物侵入轴承的灰尘控制装置。 构成:牙片(11)具有壁,用于在其中容纳和保持工具的钻套(12),用于可旋转地支撑钻套(12)的轴承(15,35),旋转式粉尘控制构件(20) 固定在所述钻头套筒(12)上,以及与所述旋转灰尘控制构件(20)和所述壳体(11)的壁配合形成间隙的静止灰尘控制构件(21,41),用于防止污染物进入所述壳体 住房。 固定式粉尘控制构件(21,41)附接到轴承(15,35)。