초록 ▼

In the case of a handpiece (3) for medical purposes, preferably for a cutting treatment of a dental root canal, with a tool holder (5) arranged in the front end region of the handpiece (3), with a retaining coupling (16) for detachable fastening of the tool (6) in the tool holder (5) and with a driv

In the case of a handpiece (3) for medical purposes, preferably for a cutting treatment of a dental root canal, with a tool holder (5) arranged in the front end region of the handpiece (3), with a retaining coupling (16) for detachable fastening of the tool (6) in the tool holder (5) and with a drive connection (8) extending lengthwise through the handpiece (3) for a rotary and/or reciprocating drive of the tool holder (5), an overload coupling (14) that limits the transmittable torque to a maximum torque value is arranged in the drive connection (8).

대표청구항 ▼

[ We claim:] [1.] In a handpiece for a medical or dental treatment device, the combination of:a tool holder arranged in a front end region of the handpiece;a retaining coupling constructed and arranged to permit detachable fastening of a tool the tool holder;a drive connection extending lengthwise t

[ We claim:] [1.] In a handpiece for a medical or dental treatment device, the combination of:a tool holder arranged in a front end region of the handpiece;a retaining coupling constructed and arranged to permit detachable fastening of a tool the tool holder;a drive connection extending lengthwise through the handpiece for driving the tool holder; andan overload coupling arranged in a gripping sleeve region of the handpiece and along the drive connection in a manner which limits transmittable driving force to a maximum driving force.