JPS6261211U

JPS6261211U -

Info

Publication number: JPS6261211U
Application number: JP15158685U
Authority: JP
Priority date: 1985-10-04
Filing date: 1985-10-04
Publication date: 1987-04-16

Description

[Brief explanation of drawings]

第１図は本考案実施例の歯科用ハンドピースの
要部である把持部の縦断面図、第２図はその縮小
側面図、第３図は第１図のＡ―Ａ′線断面図、第
４図１，２はステーターを示す平面図及び断面図
を各々表わす。１：把持部、２：接続部材、２ａ：接続筒、３
：給水管、３′：チツプエア用給気管路、４：給
気管、５：可撓性ホース用継手部材、６：継手部
材、６ａ：継手筒部、７：エアモータ、８：回転
制御部材、８ａ：ボス部、９：モーターケーシン
グ、１４：ステーター、１５：ローター、１７：
回転軸、１８ａ，１８ｂ：ベアリング、２６：操
作リング、３１：給気孔、３２：排気口、３８：
継手部材の導水管路、３９：モーターケーシング
の導水管路、３９ａ：内端側導水路入口、３９ｂ
：外端側導水管路出口、４０：接続筒の導水管路
、４０ａ：基端部側導水管路入口、４０ｂ：水供
給路口、４１：圧縮空気供給口、４２：モータケ
ーシングの空気管路。 FIG. 1 is a longitudinal cross-sectional view of the gripping part, which is the main part of the dental handpiece according to the embodiment of the present invention, FIG. 2 is a reduced side view thereof, and FIG. 3 is a cross-sectional view taken along the line A-A' in FIG. 4. FIGS. 1 and 2 show a plan view and a sectional view of the stator, respectively. 1: Gripping part, 2: Connection member, 2a: Connection tube, 3
: Water supply pipe, 3': Air supply pipe for chip air, 4: Air supply pipe, 5: Joint member for flexible hose, 6: Joint member, 6a: Joint cylinder part, 7: Air motor, 8: Rotation control member, 8a : Boss part, 9: Motor casing, 14: Stator, 15: Rotor, 17:
Rotating shaft, 18a, 18b: Bearing, 26: Operation ring, 31: Air supply hole, 32: Exhaust port, 38:
Water conduit of joint member, 39: Water conduit of motor casing, 39a: Inner end side conduit inlet, 39b
: Outer end side water conduit outlet, 40: Water conduit conduit of connecting cylinder, 40a: Base end side water conduit inlet, 40b: Water supply conduit opening, 41: Compressed air supply port, 42: Air conduit of motor casing .

Claims

[Scope of utility model registration request]

In a dental handpiece with a built-in motor for rotating a dental cutting bar at the tip of the handpiece, a conduit for supplying water and compressed air to the dental cutting bar is formed in a motor casing wall housing the motor. A dental handpiece with a built-in motor.