DE466388C - Contra-angle - Google Patents

Contra-angle

Info

Publication number
DE466388C
DE466388C DED51490D DED0051490D DE466388C DE 466388 C DE466388 C DE 466388C DE D51490 D DED51490 D DE D51490D DE D0051490 D DED0051490 D DE D0051490D DE 466388 C DE466388 C DE 466388C
Authority
DE
Germany
Prior art keywords
elbow
retaining sleeve
parts
hand
head
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.)
Expired
Application number
DED51490D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
Publication date
Priority to DED51490D priority Critical patent/DE466388C/en
Application granted granted Critical
Publication of DE466388C publication Critical patent/DE466388C/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/063—Fixing them on the shaft
    • 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
    • A61C1/18—Flexible shafts; Clutches or the like; Bearings or lubricating arrangements; Drives or transmissions
    • A61C1/181—Bearings or lubricating arrangements, e.g. air-cushion bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
    • F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
    • F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
    • F16C19/184—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
    • F16C19/187—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement with all four raceways integrated on parts other than race rings, e.g. fourth generation hubs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/581—Raceways; Race rings integral with other parts, e.g. with housings or machine elements such as shafts or gear wheels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2316/00—Apparatus in health or amusement
    • F16C2316/10—Apparatus in health or amusement in medical appliances, e.g. in diagnosis, dentistry, instruments, prostheses, medical imaging appliances
    • F16C2316/13—Dental machines

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Epidemiology (AREA)
  • Dentistry (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)

Description

Winkelstück Die Erfindung betrifft ein Winkelstück mit einer im Kopf auf Wälzkörpern gelagerten, als Werkzeugträger dienenden Haltebuchse und besteht darin, daß die Wälzkörperlager an den Enden der beiden aus miteinander v erschraubbaren Teilen bestehenden Haltebuchse einerseits aus den ausgekehlten ringförmigen Vorsprüngen an der Haltebuchse und andererseits aus entsprechenden, ringförmig umlaufenden Auskehlungen am Kopfteil des Winkelstückes selbst gebildet sind. Ein weiteres Merkmal der Erfindung besteht darin, daß das Triebrad, das vqn dem zum Antrieb dienenden Kronenrad mitgenommen wird, auf dem das Außengewinde tragenden Teil der Haltebuchse angeordnet ist.Elbow The invention relates to an elbow with one in the head mounted on rolling elements, serving as a tool holder and holding bushing in that the rolling element bearings can be screwed together at the ends of the two from one another Share existing retaining sleeve on the one hand from the fluted annular projections on the retaining sleeve and on the other hand from corresponding, annular circumferential grooves are formed on the head part of the elbow itself. Another feature of the invention consists in the fact that the drive wheel, which is carried along by the crown wheel used for driving is arranged on which the outer thread bearing part of the retaining sleeve.

Es ist bereits vorgeschlagen worden, die Werkzeugträger von Winkelstücken auf Kugeln zu lagern. Gegenüber diesen bekannten Vorrichtungen besitzt der Gegenstand der Erfindung den Vorteil, daß das Zusammensetzen und Auseinandernehmen des gesamten Winkelstückes durch einfache Verschraubung der beiden Haltebuchsenteile miteinander erfolgt. Durch diese Verschraubung erfolgt gleichzeitig selbsttätig eine genaue Zentrierung des Werkzeugträgers. Aus der Hülse herausragende rotierende Teile des Werkzeugträgers sind beim Gegenstand der Erfindung vermieden, so daß ein einwandfreies Arbeiten mit dem Winkelstück gewährleistet ist.It has already been proposed that the tool carriers of contra-angle handpieces to store on balls. Compared to these known devices, the object has the invention has the advantage that the assembly and disassembly of the whole Elbow by simply screwing the two retaining sleeve parts together he follows. This screw connection automatically creates an exact one at the same time Centering the tool carrier. From the sleeve protruding rotating parts of the Tool carriers are avoided in the subject matter of the invention, so that a perfect Working with the contra-angle handpiece is guaranteed.

Auf der Zeichnung ist ein Ausführungsbeispiel des Erfindungsgegenstandes im Schnitt dargestellt.The drawing shows an embodiment of the subject matter of the invention shown in section.

Der Kopf des Winkelstückes ist mit einer Hülse a versehen, die zwei feste innere Ringe b mit öffnungen c trägt. In der Hülse a sitzt der Werkzeugträger d, welcher aus zwei durch Gewinde miteinander verbundenen Teilen f und g besteht, von denen der mit Außengewinde versehene Teil g gleichzeitig das Triebrad h trägt, das mit dem vom Motor angetriebenen Zahnrad i zusammenarbeitet.The head of the elbow is provided with a sleeve a, which carries two fixed inner rings b with openings c. In the sleeve a sits the tool holder d, which consists of two parts f and g connected to one another by threads, of which the externally threaded part g also carries the drive wheel h, which works together with the gear wheel i driven by the motor.

An ihren beiden äußeren Enden sind die Werkzeugträgerteile f und g so ausgebildet bzw. umgebogen, daß zwischen Werkzeugträger d und Hülse a Käfige h zur Aufnahme der Kugeln oder Rollen l gebildet werden.At their two outer ends, the tool carrier parts f and g are designed or bent so that cages h for receiving the balls or rollers l are formed between the tool carrier d and the sleeve a.

Die Befestigung des Werkzeugs im Werkzeugträger kann in beliebiger Weise, z. B. durch eingesetzte -Spannhülsen o. dgl., erfolgen.The attachment of the tool in the tool carrier can be in any Way, e.g. B. by inserted clamping sleeves o. The like., Take place.

Claims (2)

PATENTANSPRÜCHE: i. Winkelstück mit einer im Kopf auf Wälzkörpern gelagerten, als Werkzeugträger dienenden Haltebuchse, dadurch gekennzeichnet, daß die Wälzkörperlager an den Enden der aus miteinander verschraubbaren Teilen (f und g) bestehenden Haltebuchse einerseits aus den ausgekehlten ringförmigen Vorsprüngen an der Haltebuchse und andererseits aus entsprechenden, ringförmig umlaufenden Auskehlungen am Kopfteil des Winkelstückes selbst gebildet sind, so daß außer der Verschraubung der beiden Haltebuchsenteile keine weitere benötigt wird und das Auseinandernehmen und Zusammensetzen des Winkelstückes sich demgemäß vereinfacht. PATENT CLAIMS: i. Elbow with one in the head on rolling elements mounted holding bushing serving as a tool carrier, characterized in that the rolling element bearings at the ends of the parts that can be screwed together (f and g) existing retaining sleeve on the one hand from the grooved annular projections on the retaining sleeve and on the other hand from corresponding, annular circumferential grooves are formed on the head part of the elbow itself, so that in addition to the screw connection of the two retaining sleeve parts no further is required and dismantling and assembling the elbow is simplified accordingly. 2. Winkelstück nach Anspruch i, dadurch gekennzeichnet, daß das Triebrad (h), das von dem zum Antrieb dienenden Kronenrad (i) mitgenommen wird, auf dem das Außengewinde tragenden Teil (g) der Haltebuchse angeordnet ist.2. Elbow after Claim i, characterized in that the drive wheel (h), which is used by the drive serving crown gear (i) is taken on the part carrying the external thread (g) the retaining sleeve is arranged.
DED51490D Contra-angle Expired DE466388C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED51490D DE466388C (en) Contra-angle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED51490D DE466388C (en) Contra-angle

Publications (1)

Publication Number Publication Date
DE466388C true DE466388C (en) 1928-10-04

Family

ID=7053416

Family Applications (1)

Application Number Title Priority Date Filing Date
DED51490D Expired DE466388C (en) Contra-angle

Country Status (1)

Country Link
DE (1) DE466388C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1779803A1 (en) * 2001-08-28 2007-05-02 Kaltenbach & Voigt GmbH Medical or dental hand-piece having at least one rotary part
EP2196163A1 (en) * 2008-12-02 2010-06-16 W & H Dentalwerk Bürmoos GmbH Medical, in particular dental, handpiece with a bearing arrangement for a turning part

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1779803A1 (en) * 2001-08-28 2007-05-02 Kaltenbach & Voigt GmbH Medical or dental hand-piece having at least one rotary part
JP2009066423A (en) * 2001-08-28 2009-04-02 Kaltenbach & Voigt Gmbh & Co Kg Roller bearing
EP2228030A1 (en) * 2001-08-28 2010-09-15 Kaltenbach & Voigt GmbH Medical or dental hand-piece having at least one rotary part
EP2196163A1 (en) * 2008-12-02 2010-06-16 W & H Dentalwerk Bürmoos GmbH Medical, in particular dental, handpiece with a bearing arrangement for a turning part
US8870569B2 (en) 2008-12-02 2014-10-28 W&H Dentalwerk Bürmoos GmbH Medical or dental handpiece having a bearing arrangement for a rotary part

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