A device for the removable attachment and of a contra-angle or against - angle of dentistry, on the case of a driving motor

摘要

Device for removable and rotatory attachment of a dental handpiece or contra-angle onto the socket of a drive motor, characterised in that it comprises a wedge-shaped piece 3 comprising a slope, mounted elastically on the socket 2 so that it can be moved radially, whilst interacting with a fixed ring 6 comprising a reverse slope, the said piece having, on the side opposite the said slope, a face perpendicular to the axis of the interacting socket for holding the tool holder, and for detaching it respectively, with a bearing surface 12 perpendicular to the axis of the tool holder and made inside the latter. IMAGE