FR2393564A1 - Dental instrument angle-piece head - has concave clamp bodies engaging with annular groove in drill bit shank (OE 15.9.78) - Google Patents
Dental instrument angle-piece head - has concave clamp bodies engaging with annular groove in drill bit shank (OE 15.9.78)Info
- Publication number
- FR2393564A1 FR2393564A1 FR7817200A FR7817200A FR2393564A1 FR 2393564 A1 FR2393564 A1 FR 2393564A1 FR 7817200 A FR7817200 A FR 7817200A FR 7817200 A FR7817200 A FR 7817200A FR 2393564 A1 FR2393564 A1 FR 2393564A1
- Authority
- FR
- France
- Prior art keywords
- annular groove
- shank
- dental instrument
- clamp bodies
- drill bit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
- A61C1/08—Machine parts specially adapted for dentistry
- A61C1/14—Tool-holders, i.e. operating tool holders, e.g. burr holders
- A61C1/141—Tool-holders, i.e. operating tool holders, e.g. burr holders in an angled handpiece
Landscapes
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Gripping On Spindles (AREA)
Abstract
The head is for a dental instrument angle piece with hollow cylindrical drill spindle to take drill bits. These are secured in the axial direction by radial clamps engaging in an annular groove in the bit shank via openings in the spindle. The clamp bodies(16) have concave curved surfaces(28) engaging with the edges of the annular groove(19) in the shank(9) for part of its periphery. They are either spring-loaded or secured in the closed position by their own resilience. They can be so arranged that they can only be lifted radially by the surface of the shank. The bodies can be rollers with relieved surfaces to a radius equal to or greater than that of the shank.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT406677A AT349614B (en) | 1977-06-08 | 1977-06-08 | HEAD FOR DENTAL ELBOWS |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2393564A1 true FR2393564A1 (en) | 1979-01-05 |
Family
ID=3559197
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7817200A Pending FR2393564A1 (en) | 1977-06-08 | 1978-06-08 | Dental instrument angle-piece head - has concave clamp bodies engaging with annular groove in drill bit shank (OE 15.9.78) |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS544497A (en) |
AT (1) | AT349614B (en) |
BR (1) | BR7803670A (en) |
DE (1) | DE2822708A1 (en) |
FR (1) | FR2393564A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2632180A1 (en) * | 1988-06-06 | 1989-12-08 | Micro Mega Sa | Contra-angle for mechanical widening of root canals |
FR2863862A1 (en) * | 2003-11-25 | 2005-06-24 | Micro Mega Int Mfg Sa | Dental instrument fixing device, has tightening-loosening unit with belt and force exerting part to exert loosening forces for canceling tightening forces in order to release dental instrument |
US8118594B2 (en) | 2003-11-25 | 2012-02-21 | Micro-Mega International Manufactures | Dental handpiece with a unitary body and an electrically conductive and elastic connection element |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3012152C2 (en) * | 1980-03-28 | 1986-02-20 | Siemens AG, 1000 Berlin und 8000 München | Holding device for a rotating dental tool |
DE4408574A1 (en) | 1993-07-30 | 1995-02-02 | Kaltenbach & Voigt | Angular or straight handpiece with a releasable clamping device for a tool, in particular for medical purposes |
ATE230956T1 (en) * | 1993-07-30 | 2003-02-15 | Kaltenbach & Voigt | TOOL FOR AN ANGLE-SHAPED OR STRAIGHT HANDPIECE WITH A RELEASABLE CLAMPING DEVICE FOR THE TOOL, PARTICULARLY FOR MEDICAL PURPOSES |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR891672A (en) * | 1942-06-12 | 1944-03-15 | Emile Anthoine Et Ses Fils Ets | Dental lathe right angle locking system |
CH239460A (en) * | 1943-10-14 | 1945-10-15 | Kreis Robert | Holder for grinding and polishing discs for the dental practice. |
-
1977
- 1977-06-08 AT AT406677A patent/AT349614B/en not_active IP Right Cessation
-
1978
- 1978-05-24 DE DE19782822708 patent/DE2822708A1/en not_active Withdrawn
- 1978-06-05 JP JP6758978A patent/JPS544497A/en active Pending
- 1978-06-08 FR FR7817200A patent/FR2393564A1/en active Pending
- 1978-06-08 BR BR7803670A patent/BR7803670A/en unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR891672A (en) * | 1942-06-12 | 1944-03-15 | Emile Anthoine Et Ses Fils Ets | Dental lathe right angle locking system |
CH239460A (en) * | 1943-10-14 | 1945-10-15 | Kreis Robert | Holder for grinding and polishing discs for the dental practice. |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2632180A1 (en) * | 1988-06-06 | 1989-12-08 | Micro Mega Sa | Contra-angle for mechanical widening of root canals |
FR2863862A1 (en) * | 2003-11-25 | 2005-06-24 | Micro Mega Int Mfg Sa | Dental instrument fixing device, has tightening-loosening unit with belt and force exerting part to exert loosening forces for canceling tightening forces in order to release dental instrument |
WO2005063141A1 (en) * | 2003-11-25 | 2005-07-14 | Micro-Mega International Manufactures (Societe Anonyme) | Elastic belt-shaped device for fixing a dental tool to a handpiece head |
US8118594B2 (en) | 2003-11-25 | 2012-02-21 | Micro-Mega International Manufactures | Dental handpiece with a unitary body and an electrically conductive and elastic connection element |
Also Published As
Publication number | Publication date |
---|---|
BR7803670A (en) | 1979-03-20 |
JPS544497A (en) | 1979-01-13 |
DE2822708A1 (en) | 1978-12-21 |
ATA406677A (en) | 1978-09-15 |
AT349614B (en) | 1979-04-10 |
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