SE177681C1

SE177681C1 -

Info

Publication number: SE177681C1
Authority: SE
Publication date: 1961-01-01

Description

KLASS 30 b:21/08 INT. KLASS A 61 c PATENTTID FRAN DEN 4 OKTOBER 1960 BEVILJAT DEN 19 OKTOBER 1961 PUBLICERAT DEN 27 DECEMBER 1961 Ans. 9485/1960 den 4/10 1960 .Milt11 en ritning S A SWALLERT, GENEVE, SCHWEIZ Spegel, sfirskilt for dentalt eller kirurgiskt bruk Foreliggande uppfinning avser en spegel, sarskilt for dentalt eller kirurgiskt bruk. Uppfinningen har speciellt till andamal att eliminera de olagenheter, som uppkomma genom att spegeln under anvandningen belagges med fuktighet eller losa partiklar. CLASS 30 b: 21/08 INT. CLASS A 61 c PATENT PERIOD FROM 4 OCTOBER 1960 GRANTED ON 19 OCTOBER 1961 PUBLISHED 27 DECEMBER 1961 Ans. 9485/1960 of 4/10 1960 .Milt11 a drawing S A SWALLERT, GENEVE, SWITZERLAND Mirror, separate for dental or surgical use The present invention relates to a mirror, especially for dental or surgical use. The invention has in particular the object of eliminating the irregularities which arise by the mirror being coated with moisture or loose particles during use.

Det har tidigare bland annat fareslagits att blasa luft pa spegeln genom ett utanfor och i vinkel mot spegeln anordnat raunstycke. Med en sadan anordning kan emellertid endast torn t stoft avlagsnas. Sa snart som spegeln fuktas med vatten eller sally, maste den, rengores pa vanligt satt, (la luftstralen icke tillraekligt effektivt kan Masa bort denna fuktighet for att ge en tydlig spegelbild. It has previously been dangerous, among other things, to blow air onto the mirror through a run piece arranged outside and at an angle to the mirror. With such a device, however, only tower t dust can be removed. As soon as the mirror is moistened with water or sally, it must be cleaned in the usual way (if the air jet is not sufficiently effective, this moisture can be removed to give a clear mirror image.

Vid nyare dental borrteknik besprutas bornstallet med en vattenstrale i kylande syfte och det an da speeiellt svart att iakttaga arbetsstallet med hjalp av en. spegel, da -vattnet utsprutar i finfordelad form i hela munhalan och omedelbart belagger spegeln. In newer dental drilling technology, the stall is sprayed with a jet of water for cooling purposes, and it is especially difficult to observe the stall with the help of one. mirror, as the water sprays in finely divided form throughout the oral cavity and immediately coats the mirror.

Enligt foreliggande uppfinning avlagsnas saval vatten som borrstoft och andra partiklar fran spegeln momentant pumi centrifugalverkan, varigenom spegeln under bibehallande av en klar spegelbild kan hallas kvar i munhalan eller annan halighet under hela den pagaende behandlingen. Detta uppnas genom att spegeln ar roterbart lagrad pd en axe' i en hallare till ,spegeln och kan sattas i rotation medelst en i holjet anordnad drivan.ordning, vilken star i forbindelse med en yttre drivkalla genom ett ihdligt skaft for spegeln. According to the present invention, as much water as drilling dust and other particles are removed from the mirror by instantaneous pumi centrifugal action, whereby the mirror can be retained in the oral cavity or other cavity throughout the pagan treatment while maintaining a clear mirror image. This is achieved in that the mirror is rotatably mounted on an axis' in a holder for the mirror and can be set in rotation by means of a drive device arranged in the housing, which is connected to an external drive source by a fixed shaft for the mirror.

Drivanordningen kan utgoras av ett turbinhjul, som är anbragt pa spegelns axel och drives medelst genom det ihdliga skaftet tillford tryckluft eller undertryck. Alternativt kan spegeln bringas i rotation med hjalp av en ii-ten elmotor eller en yttre motor med en genom skaftet ford bojlig axel. For att uppna tillrdcklig centrifugalverkan och darigenom ,effektiv bortslungning av vatten och partiklar fran spegeln bar donna bibiingas ett relativt Mgt varvtal, vilket utan svarighet uppnas enligt bada utforingsformerna. The drive device can be constituted by a turbine wheel, which is arranged on the shaft of the mirror and is driven by means of the continuous shaft supplied with compressed air or negative pressure. Alternatively, the mirror can be rotated by means of an electric motor or an external motor with a shaft bent through the shaft. In order to obtain a sufficient centrifugal effect and thereby, efficient throwing away of water and particles from the mirror, the donna had to be given a relatively high speed, which is achieved without responsibility according to both embodiments.

For att forhindra imbildning pd spegeln vid allman undersokning utan behandling kan skaftet omedelbart ovanfor spegeln ha en mot derma snett riktad oppning for tillforsel av en mindre mangd luft eller ocksa kan vid turbindrift en del av returluften blasas ut mot spegelns yta. In order to prevent fogging on the mirror during general examination without treatment, the shaft may immediately above the mirror have an obliquely directed opening for the supply of a smaller amount of air or, during turbine operation, part of the return air may be blown out towards the surface of the mirror.

Vid turbindrift har skaftet fOretradesvis tva kanaler, en far tillforsel av tryckluften och en returkanal far avledning av den huvudsakliga luftmangden. In turbine operation, the shaft preferably has two ducts, one for the supply of compressed air and one return duct for diversion of the main air volume.

Uppfinningen beskrives narmare i det f aljande under hanvisning till bifogade riffling, vilken sasom exempel visar tva utfaringsformer av anordningen schematiskt och i tvarsektion. Fig. 1 visar en spegel enligt uppfinningen med turbindrift och fig. 2 en spegel avsedd att drivas medelst en yttre motor. The invention is described in more detail in the following with reference to the accompanying corrugation, which as an example shows two embodiments of the device schematically and in cross section. Fig. 1 shows a mirror according to the invention with turbine drive and Fig. 2 a mirror intended to be driven by means of an external motor.

Enligt fig. 1 omfattar anordningen ett skaft 1 med tva kanaler (varav blott den ena 2 visas pa ritningen) och en mot skaftet snedstalld spegel 3. Spegeln an roterbart anordnad pa en axel 4, som Or lagrad i ett kullager 5 eller annat lampligt lager, t. ex. en rubin eller annan sten. Vid axeln 4 ar ett turbinhjul 6 anbragt. Tryekluft 1111M-es genom en vid skaftets yttre dude anbragt slang 7 och strommar genom kanalen 2 i skaftet och satter turbinen 6 i rotation. Skovlarna pa, turbinhjulet aro lampligen ad installda, att hjulet vid rotation tryckes mot axelns lager. Returluften strommar tillbaka ,genorn den andra kanalen i skaftet och ut i det fria, t. ex. genom en slang 8. Tryekluftkanalen 2 i skaftet kan vidare i narheten av spegeln ha en mindre, snett mot spegeln riktad oppning 9 f8r att blasa en mindre mangd luft mot spegeln. According to Fig. 1, the device comprises a shaft 1 with two channels (of which only one 2 is shown in the drawing) and a mirror 3 inclined towards the shaft and rotatably arranged on a shaft 4, which is mounted in a ball bearing 5 or other lamp bearing. , e.g. a ruby or other stone. At the shaft 4 a turbine wheel 6 is arranged. Compressed air 1111M is passed through a hose 7 arranged at the outer dude of the shaft and flows through the channel 2 in the shaft and sets the turbine 6 in rotation. The vanes on the turbine wheel are suitably set so that the wheel is pressed against the shaft bearing during rotation. The return air flows back, through the second channel in the shaft and out into the open, e.g. through a hose 8. The compressed air duct 2 in the shaft may further, in the vicinity of the mirror, have a smaller, obliquely directed opening 9 towards the mirror in order to blow a smaller amount of air towards the mirror.

Enligt fig. 2 liar skaftet 10 en genomgaende kanal 11 med en genom donna ghende Mpg, till en yttre motor ansluten axel 12, som me- deist en transmission 13 ar ansluten till spegelns axel. Aven i detta fall kan luft tillforas genom en separat kanal till ett mot spegeln riktat munstyeke. According to Fig. 2, the shaft 10 has a continuous channel 11 with an Mpg passing through it, a shaft 12 connected to an external motor, which is connected to a shaft 13 by a transmission 13. Even in this case, air can be supplied through a separate duct to a nozzle facing the mirror.

Praktiska forsiik ha visat, att spegeln enligt uppfinningen bibehaller en blank yta under alla forekommande arbetsforhallanden 2— — och att rengoring genom aytorkning eller tvattning icke erfordras tack yare centrifugaleffekten, genom vilken bade yalska och fasta partiklar effektivt slungas ay fran. spegeln. Practical tests have shown that the mirror according to the invention maintains a glossy surface under all prevailing working conditions and that cleaning by surface drying or washing is not required due to the centrifugal effect, by which both yellow and solid particles are effectively thrown away. the mirror.

Claims

Patent claim:

Mirror, especially for dental or surgical use, with a mirror arranged in a housing or a holder and a continuous shaft connected to the housing or the wool, can be characterized in that the mirror (3) rotatably mounted in a shaft (4) in the housing or the holder and arranged to be brought into rotation by means of a drive device (6, 12, 13) arranged in the housing or the holder, which is connected to an external drive cold through the hollow shaft.

2. A mirror according to claim 1, characterized in Bray, that the mirror is rotatable by means of a turbine wheel (6) arranged on the axis of the mirror, which is driven by the hollow shaft to supply compressed air or negative pressure, the turbine wheel vanes being suitably installed so that the turbine wheel its rotation is pressed against its bearing (5).

Mirror according to patent claims 1 and 2, characterized in that the shaft has a duct for supply of compressed air (7) and a duct for discharge of return air (8).

4. A mirror according to claim 1, characterized in that the mirror is arranged to be rotated by means of an external motor through a shaft (12) connected thereto and through the hollow shaft. Request publications: Stockholm 1961. Hung. Boltr. P. A. Norstedt & Saner. 610089