Dental handpiece

Details Dental handpiece Dental handpiece

1985-07-19

1987-02-17

Wilson, John J.

Dentistry

Apparatus

Having motor or means to transmit motion from motor to tool

433105, A61C 108

Patent

active

046436758

ABSTRACT:
A dental handpiece, encompassing a gripping sleeve and a head sleeve which is bent relative to the longitudinal axis of the gripping sleeve, as well as a drive shaft which is supported within the handpiece and which drives a treating implement arranged in a head at the free end of the head sleeve. The drive shaft is transversely divided in the region of the bending location, wherein the two drive shaft parts are in interengagement through the intermediary of a follower or engaging device, and wherein a planetary ball gear drive is interposed in the driven drive shaft part. While retaining the planetary ball gear drive which acts as safeguard against overloads, it is possible, without an exchange of the complete handpiece, to effect in a rapid and simple manner a transition to working with a certain head which is selected from a large number of heads.

REFERENCES:
patent: 4213756 (1980-07-01), Reich et al.
patent: 4245985 (1981-01-01), Eibofner et al.
patent: 4260381 (1981-04-01), Eibofner et al.
patent: 4310310 (1982-01-01), Bailey
patent: 4382790 (1983-05-01), Loge et al.
patent: 4406621 (1983-09-01), Bailey
patent: 4504227 (1985-03-01), Lohn

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