DE666918C - Electric foot switch for dental drills - Google Patents

Electric foot switch for dental drills

Info

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
Application number
DEB175359D
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.)
ALWIN BERGER
Original Assignee
ALWIN BERGER
Publication date
Priority to DEB175359D priority Critical patent/DE666918C/en
Application granted granted Critical
Publication of DE666918C publication Critical patent/DE666918C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H21/00Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
    • H01H21/02Details
    • H01H21/18Movable parts; Contacts mounted thereon
    • H01H21/22Operating parts, e.g. handle
    • H01H21/24Operating parts, e.g. handle biased to return to normal position upon removal of operating force
    • H01H21/26Operating 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)

PATENTANSPRUCH: Elektrischer Fußschalter für zahnärztlicheBohrrnaschinen, gekennzeichnet durch parallel zur Drehachse gerichtete walzen-oder stiftförmige Kontakte, an welchen sich die stromführende Kontaktrolle des Fußhebels abrollt und deren Abstände so bemessen sind; daß die Kontaktrolle zwischen je zwei Kontaktwalzen oder -stiften gerastet ist.PATENT CLAIM: Electric foot switch for dental drilling machines, characterized by roller-shaped or pin-shaped ones directed parallel to the axis of rotation Contacts on which the current-carrying contact roller of the foot pedal unrolls and the distances between them are dimensioned in this way; that the contact roller between each two contact rollers or pins is engaged.
DEB175359D Electric foot switch for dental drills Expired DE666918C (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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