ASSISTED TIGHTENING DEVICE FOR HANDPIECE

The present invention relates to a chucking device for a drilling tool for a dental handpiece, as well as a handpiece for dental or surgical applications comprising: -a head (10) in which is inserted in removable fashion a drilling tool (100) able to be actuated in rotation about an axis of rotation...

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Bibliographic Details
Main Authors Guerlesquin, Gaël, SARCHI, Davide, Juillerat, Sébastien, Bernasconi, Fabio
Format Patent
LanguageEnglish
French
German
Published 13.07.2022
Subjects
APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
DENTISTRY
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
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Summary:The present invention relates to a chucking device for a drilling tool for a dental handpiece, as well as a handpiece for dental or surgical applications comprising: -a head (10) in which is inserted in removable fashion a drilling tool (100) able to be actuated in rotation about an axis of rotation (R) by means of a drive mechanism comprising a drive shaft (2) rotating about this axis of rotation (R)-a clamping device for the drilling tool (100), comprising a chucking clamp (4) disposed inside said drive shaft (2) for axial retention of the drilling tool (100) with respect to the axis of rotation (R), the clamp (4) co-operating with a plunger (5), and-a push-button (61) arranged to act upon the plunger (5) in order to release the drilling tool (100); The handpiece (1) contains a permanent magnet (7) arranged symmetrically around the axis of rotation (R) and exerting a force of magnetic attraction (F) on the plunger (5) in direction of the push-button (61).
Bibliography:Application Number: EP20190166219