DE666918C - Electric foot switch for dental drills - Google Patents
Electric foot switch for dental drillsInfo
- Publication number
- DE666918C DE666918C DEB175359D DEB0175359D DE666918C DE 666918 C DE666918 C DE 666918C DE B175359 D DEB175359 D DE B175359D DE B0175359 D DEB0175359 D DE B0175359D DE 666918 C DE666918 C DE 666918C
- Authority
- DE
- Germany
- Prior art keywords
- roller
- foot switch
- electric foot
- pins
- dental drills
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
- H01H21/02—Details
- H01H21/18—Movable parts; Contacts mounted thereon
- H01H21/22—Operating parts, e.g. handle
- H01H21/24—Operating parts, e.g. handle biased to return to normal position upon removal of operating force
- H01H21/26—Operating parts, e.g. handle biased to return to normal position upon removal of operating force adapted for operation by a part of the human body other than the hand, e.g. by foot
Landscapes
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Description
Elektrischer Fußschalte@,tnärztliche Bohrmaschinen Die Erfindung betrifft einen Fußanlasser, insbesondere für za'hnärzt'liche elektrische Bohrmaschinen, und besteht darin, daß parallel zur Drehachse des Reglers walzen- oder stiftförmige Kontakte angeordnet sind, an welchen sich eine an sich bekannte drehbare Kontaktrolle des Einstellhebels abrollt, und daß deren Abstände so bemessen sind, daß die Kontaktrolle zwischen je zwei Kontaktstiften gerastet ist. Hierdurch ist es möglich, mehrstufigeFußregler ohne jede zusätzlicheRasteneinrichtung zu bauen. Die Rastenhöhlungen werden durch die Zwischenräume zwischen den Widerstandskontakten selbst gebildet. Außerdem ist die Abnutzung der stromführenden Kontakte infolge der Abrollung zweier Zylinder aneinander denkbar gering. Dies bedeutet wiederum erhöhte Sicherheit der Arbeitsweise und längere Lebensdauer des Reglers.Electric foot switch @, medical drills The invention relates a foot control, especially for dental electric drills, and consists in that roller-shaped or pin-shaped parallel to the axis of rotation of the controller Contacts are arranged on which a known rotatable contact roller of the adjusting lever rolls, and that their distances are such that the contact roller is locked between two contact pins. This makes it possible to use multi-stage foot controls without building any additional rest mechanism. The notch cavities are through the gaps between the resistor contacts themselves are formed. Also is the wear and tear of the current-carrying contacts as a result of the unwinding of two cylinders very little to each other. This in turn means increased safety of the working method and longer lifespan of the controller.
In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt, und zwar in Abb. i in einem senkrechten und in Abb. 2 in einem waagerechten Schnitt.In the drawing, an embodiment of the invention is shown, namely in Fig. i in a vertical section and in Fig. 2 in a horizontal section.
i ist ein Einstellhebel, dessen isoliert angebauter Hebelarm :2 den Querhebel 3 trägt, an dessen einem Ende die Kontaktrolle 4 gelagert ist, während am anderen Ende die Feder 5 angreift. Die Kontaktrolle 4 wird dadurch an die Kontaktwalzen oder -stifte 6 angedrückt. DieAchsen dieser Kontaktstifte6 verlaufen parallel mit der Drehachse 7. Hierdurch ist zuverlässig erreicht, daß sich die Rolle 4 auf ihrer Einstellbahn an den Stiften 6 abrollt, ohne zu schleifen. Die Feder 5 ist so abgestimmt, und die Abstände der Stifte 6 sind im Verhältnis zu dem Durchmesser der Rolle 4 so gewählt, daß die Rolle 4 zwischen je zwei Stiften 6 stehenbleibt, während ein leiser Anstoß des Hebels i genügt, um den Hebel und damit die Rolle 4 aus ihrer Rast heraus in die Nullstellung schnellen zu lassen.i is an adjusting lever, the lever arm of which is attached in an isolated manner: 2 den Transverse lever 3 carries, at one end of which the contact roller 4 is mounted while the spring 5 engages at the other end. The contact roller 4 is thereby attached to the contact rollers or pins 6 pressed on. The axes of these contact pins 6 run parallel with them the axis of rotation 7. This reliably ensures that the roller 4 is on its Adjustment track unrolls on pins 6 without grinding. The spring 5 is tuned so and the distances of the pins 6 are in relation to the diameter of the roller 4 chosen so that the roller 4 stops between two pins 6, while a a slight push of the lever i is sufficient to remove the lever and thus the roller 4 from its Snap out into the zero position to let it fly.
Inder Abb. 2 sind die Teile 1, 2; 3 und 4 in der Nullstellung gezeichnet, während die gestrichelte Lage beispielsweise der Stellung in der vierten Geschwindigkeitsstufe entspricht. Aus der Zeichnung geht klar der einfache Bau des Fußgerätes hervor, welches ohne besondere Rasteneinrichtung usw. auskommt. Die Stifte 6 sind durch einfache Isolierplatten S von der Grundplatte 9 isoliert.In Fig. 2 the parts 1, 2; 3 and 4 drawn in the zero position, while the dashed position, for example, the position in the fourth speed level is equivalent to. The drawing clearly shows the simple construction of the foot device, which does not require a special notch device, etc. The pins 6 are through simple insulating plates S isolated from the base plate 9.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB175359D DE666918C (en) | Electric foot switch for dental drills |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB175359D DE666918C (en) | Electric foot switch for dental drills |
Publications (1)
Publication Number | Publication Date |
---|---|
DE666918C true DE666918C (en) | 1938-10-31 |
Family
ID=7007695
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEB175359D Expired DE666918C (en) | Electric foot switch for dental drills |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE666918C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1180032B (en) * | 1959-03-04 | 1964-10-22 | Dentaltechnik Veb | Locking device for foot-operated electric starters, especially for dental drills |
US11845178B2 (en) | 2020-11-03 | 2023-12-19 | Techtronic Cordless Gp | Modular work station |
-
0
- DE DEB175359D patent/DE666918C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1180032B (en) * | 1959-03-04 | 1964-10-22 | Dentaltechnik Veb | Locking device for foot-operated electric starters, especially for dental drills |
US11845178B2 (en) | 2020-11-03 | 2023-12-19 | Techtronic Cordless Gp | Modular work station |
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