JPS61159906U

JPS61159906U -

Info

Publication number: JPS61159906U
Application number: JP7362285U
Authority: JP
Priority date: 1985-03-27
Filing date: 1985-05-20
Publication date: 1986-10-03

Description

[Brief explanation of the drawing]

第１図は本考案による歯科器具の分離された状
態におけるハンドピースの後端とインサートの前
端とを示す略示側断面図であり、組合された状態
における接触用ピストンの位置を一点鎖線で示す
。第２図は第１図の矢印の方向に見たハンドピ
ースの後端を示す正面図である。１…ハンドピース、２…外側ソケツト、３…内
側ソケツト、４…後端、５…第１環状電気軌道、
６…絶縁リング、７…第２環状電気軌道、８…リ
ング、９…孔、１０…インサート、１１…スタブ
、１２，１３…接触用ピストン、１４，１５…ス
プリング、１６…環状溝、１７…絶縁された導電
体。 FIG. 1 is a schematic side sectional view showing the rear end of the handpiece and the front end of the insert in the separated state of the dental instrument according to the present invention, and the position of the contacting piston in the assembled state is shown by a dash-dotted line; . FIG. 2 is a front view of the rear end of the handpiece as seen in the direction of the arrow in FIG. DESCRIPTION OF SYMBOLS 1... Hand piece, 2... Outer socket, 3... Inner socket, 4... Rear end, 5... First annular electric track,
6... Insulating ring, 7... Second annular electric raceway, 8... Ring, 9... Hole, 10... Insert, 11... Stub, 12, 13... Contact piston, 14, 15... Spring, 16... Annular groove, 17... An insulated electrical conductor.

Claims

[Claims for Utility Model Registration] 1. A handpiece made to receive a treatment instrument therein, and a handpiece made to be separably connected to the rear end of the handpiece and combined with the handpiece. in a dental instrument comprising an insert that is freely rotatable relative to the handpiece when in a state in which the insert preferably incorporates a micromotor for driving the treatment instrument; a separable electrical connection; Means is provided between the handpiece and the insert for powering a light source located proximate the head of the handpiece, and the electrical connection means is located on the front face of the insert. a pair of protruding, spring-biased contact pistons disposed on the rear surface of the handpiece, insulated from each other and concentrically disposed, and a pair of protruding spring-biased contact pistons disposed on the rear surface of the handpiece; A dental instrument comprising a pair of annular electric tracks resiliently engaged with a biased contact piston. 2. The spring-loaded contact piston projects from the front end of the insert into an annular groove of the insert, and the pair of annular electric tracks engages the handpiece and insert in combination within the annular groove. The dental appliance according to claim 1, which is made to be adapted to the conditions of use.