DE1300408B - Gear for a backlash-free gear drive - Google Patents

Gear for a backlash-free gear drive

Info

Publication number
DE1300408B
DE1300408B DE1967T0033442 DET0033442A DE1300408B DE 1300408 B DE1300408 B DE 1300408B DE 1967T0033442 DE1967T0033442 DE 1967T0033442 DE T0033442 A DET0033442 A DE T0033442A DE 1300408 B DE1300408 B DE 1300408B
Authority
DE
Germany
Prior art keywords
gear
backlash
free
drive
slots
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
Application number
DE1967T0033442
Other languages
German (de)
Inventor
Brandhorst Rolf
Haase Wilfried
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.)
Telefunken Patentverwertungs GmbH
Original Assignee
Telefunken Patentverwertungs GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE19631268447 external-priority patent/DE1268447B/en
Application filed by Telefunken Patentverwertungs GmbH filed Critical Telefunken Patentverwertungs GmbH
Priority to DE1967T0033442 priority Critical patent/DE1300408B/en
Publication of DE1300408B publication Critical patent/DE1300408B/en
Pending 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
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/17—Toothed wheels
    • F16H55/18—Special devices for taking up backlash

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gears, Cams (AREA)

Description

Für die Abstimmung in Empfängern der drahtlosen Nachrichtentechnik werden bekanntlich Zahntriebe verwendet, die eine Untersetzung vom Bedienungsknopf zum Drehkondensator oder zum Potentiometer bei einer Abstimmung mit Kapazitätsdioden ermöglichen. Um die Übertragung spielfrei zu machen, besteht das eine Zahnrad des Zahntriebes aus zwei gleich großen, koaxial angeordneten Zahnrädern, die tangential durch eine Feder gegeneinander verspannt sind und beide in ein Ritzel eingreifen. Demgegenüber zeigt die Erfindung eine einfachere Konstruktion.For voting in wireless communication technology receivers It is known that gear drives are used, which have a reduction from the control button to the variable capacitor or to the potentiometer when coordinated with capacitance diodes enable. To make the transmission play-free, there is a gear of the Gear drive consisting of two equally large, coaxially arranged gears, which are tangential are braced against each other by a spring and both engage in a pinion. In contrast, the invention shows a simpler construction.

Es sind auch Zahnräder bekannt, die mit Schlitzen versehen sind. Sie sind vornehmlich im Hinblick darauf konstruiert, daß sie in tangentialer Richtung Stöße auffangen sollen. Zu diesem Zweck ist der Zahnkranz gegen die Nabe federnd verdrehbar.There are also known gears which are provided with slots. she are primarily designed to run in a tangential direction To absorb shocks. For this purpose, the ring gear is resilient against the hub rotatable.

Dem Hauptpatent lag dagegen die Aufgabe zugrunde, zur Herstellung eines spielfreien Zahntriebes eine gleichmäßige Federung in radialer Richtung in jeder Stellung zu erzielen, was bei den bekannten federnden Zahnrädern nicht zutrifft. Gemäß dem Hauptpatent wird diese Aufgabe dadurch gelöst, daß das Zahnrad mit längs wenigstens zwei zur Zahnradachse konzentrischer Kreise angeordneten Schlitzen versehen ist, die durch gegenseitig versetzte Stege unterbrochen sind.The main patent, however, was based on the task of manufacturing a backlash-free gear drive a uniform suspension in the radial direction in to achieve any position, which is not the case with the known resilient gears. According to the main patent, this object is achieved in that the gear with longitudinal provided at least two concentric circles to the gear axis arranged slots that are interrupted by mutually offset webs.

Der radiale Druck ist bei einer solchen Anordnung aber nicht so gleichmäßig, wie erwünscht ist; denn es hat sich gezeigt, daß die Zähne an den Stellen, an denen sich auf dem äußeren Kreis die Stege befinden, schneller verschleißen, also der radiale Druck dort größer ist. Die Erfindung beseitigt diesen Nachteil bei dem federnden Zahnrad nach dem Hauptpatent dadurch, daß jeder Schlitz in seiner Mitte von dem einen Kreis in den anderen übergeht. Auf diese Weise ist an jeder Stelle des Umfanges die radiale Federung praktisch gleich groß.The radial pressure is not so even with such an arrangement, as is desired; because it has been shown that the teeth in the places where if the bars are on the outer circle, they wear out faster, i.e. the radial pressure is greater there. The invention eliminates this disadvantage in the resilient Gear according to the main patent in that each slot in its center of the one circle merges into the other. This way is at every point of the scope the radial suspension is practically the same size.

Für den genannten Zweck wird das Zahnrad zweckmäßig aus einem elastischen thermoplastischen Kunststoff aus einem Stück gespritzt.For the stated purpose, the gear is expediently made of an elastic one thermoplastic plastic injection-molded from one piece.

Bei dem in der Zeichnung dargestellten Ausführungsbeispiel sind vier Schlitze vorhanden, die je einen Sektor von etwa 180° einnehmen.In the embodiment shown in the drawing, there are four There are slots that each occupy a sector of about 180 °.

Claims (3)

Patentansprüche: 1. Zahnrad für einen spielfreien Zahntrieb, insbesondere für die Abstimmung von Empfängern der Funkempfangstechnik, welches mit längs wenigstens zwei zur Zahnradachse konzentrischer Kreise angeordneten Schlitzen versehen ist, die durch gegenseitig versetzte Stege unterbrochen sind, nach Patent 1268 447, d a d u r c h g e -kennzeichnet, daß jeder Schlitz in seiner Mitte von dem einen Kreis in den anderen übergeht. Claims: 1. Gear for a backlash-free gear drive, in particular for the coordination of receivers of radio reception technology, which with longitudinal at least two slots arranged concentric to the gear axis are provided, which are interrupted by mutually offset webs, according to patent 1268 447, d a d u r c h g e - indicates that each slot is in its center from the one circle merges into the other. 2. Zahnrad nach Anspruch 1, dadurch gekennzeichnet, daß vier Schlitze vorhanden sind, die je einen Sektor von etwa 180° einnehmen. 2. Gear according to claim 1, characterized in that four slots are available, each occupying a sector of about 180 °. 3. Zahnrad nach Anspruch 1, dadurch gekennzeichnet, daß es aus elastischem thermoplastischem Kunststoff besteht.3rd gear according to claim 1, characterized in that it is made of elastic thermoplastic Made of plastic.
DE1967T0033442 1963-10-21 1967-03-15 Gear for a backlash-free gear drive Pending DE1300408B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1967T0033442 DE1300408B (en) 1963-10-21 1967-03-15 Gear for a backlash-free gear drive

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19631268447 DE1268447B (en) 1963-10-21 1963-10-21 Gear for backlash-free gear drive
DE1967T0033442 DE1300408B (en) 1963-10-21 1967-03-15 Gear for a backlash-free gear drive

Publications (1)

Publication Number Publication Date
DE1300408B true DE1300408B (en) 1969-07-31

Family

ID=7557770

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1967T0033442 Pending DE1300408B (en) 1963-10-21 1967-03-15 Gear for a backlash-free gear drive

Country Status (1)

Country Link
DE (1) DE1300408B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2714020A1 (en) * 1977-03-30 1978-10-12 Werner Beiter PLASTIC GEAR AND METHOD OF ITS PRODUCTION
DE3427158A1 (en) * 1984-07-24 1986-01-30 Gardena Kress + Kastner Gmbh, 7900 Ulm REDUCTION GEAR, ESPECIALLY FOR LAWN SCISSORS
FR2614710A1 (en) * 1987-04-29 1988-11-04 Sueddeutsche Kuehler Behr Manoeuvring device including a toothed crown segment especially for air conditioning of private cars
EP2623820A1 (en) * 2012-01-31 2013-08-07 Astrium GmbH Gear wheel
EP2636925A1 (en) * 2012-03-09 2013-09-11 Alps Electric Co., Ltd. Rotation transmission mechanism and rotary connector
DE102012102777A1 (en) * 2012-03-30 2013-10-02 Zf Lenksysteme Gmbh Screwing wheel for use in worm gear for power steering apparatus in electromechanical steering device for steering wheel of motor car, has connecting part comprising helical ribs, which are extended from origin in both directions

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE311406C (en) *
US1015870A (en) * 1911-08-10 1912-01-30 Warner Instr Company Gear.
CH148842A (en) * 1929-10-04 1931-08-15 Chem Ind Basel Process for the production of noiselessly running gears.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE311406C (en) *
US1015870A (en) * 1911-08-10 1912-01-30 Warner Instr Company Gear.
CH148842A (en) * 1929-10-04 1931-08-15 Chem Ind Basel Process for the production of noiselessly running gears.

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2714020A1 (en) * 1977-03-30 1978-10-12 Werner Beiter PLASTIC GEAR AND METHOD OF ITS PRODUCTION
DE3427158A1 (en) * 1984-07-24 1986-01-30 Gardena Kress + Kastner Gmbh, 7900 Ulm REDUCTION GEAR, ESPECIALLY FOR LAWN SCISSORS
FR2614710A1 (en) * 1987-04-29 1988-11-04 Sueddeutsche Kuehler Behr Manoeuvring device including a toothed crown segment especially for air conditioning of private cars
EP2623820A1 (en) * 2012-01-31 2013-08-07 Astrium GmbH Gear wheel
US9556949B2 (en) 2012-01-31 2017-01-31 Astrium Gmbh Gear wheel
EP2636925A1 (en) * 2012-03-09 2013-09-11 Alps Electric Co., Ltd. Rotation transmission mechanism and rotary connector
DE102012102777A1 (en) * 2012-03-30 2013-10-02 Zf Lenksysteme Gmbh Screwing wheel for use in worm gear for power steering apparatus in electromechanical steering device for steering wheel of motor car, has connecting part comprising helical ribs, which are extended from origin in both directions
DE102012102777B4 (en) * 2012-03-30 2019-08-14 Robert Bosch Automotive Steering Gmbh BOLT FOR AN ELECTROMECHANICAL STEERING DEVICE

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