DE10248963A1 - Double freewheel able to permit clockwise and anti-clockwise rotation has locking ring positioned in bush with gap round it - Google Patents

Double freewheel able to permit clockwise and anti-clockwise rotation has locking ring positioned in bush with gap round it Download PDF

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Publication number
DE10248963A1
DE10248963A1 DE2002148963 DE10248963A DE10248963A1 DE 10248963 A1 DE10248963 A1 DE 10248963A1 DE 2002148963 DE2002148963 DE 2002148963 DE 10248963 A DE10248963 A DE 10248963A DE 10248963 A1 DE10248963 A1 DE 10248963A1
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DE
Germany
Prior art keywords
locking ring
freewheel
shaft
cam
clockwise
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.)
Withdrawn
Application number
DE2002148963
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German (de)
Inventor
Eduard Raum
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.)
Raum Eduard Prof Dipl-Ing
Original Assignee
Raum Eduard Prof Dipl-Ing
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Filing date
Publication date
Application filed by Raum Eduard Prof Dipl-Ing filed Critical Raum Eduard Prof Dipl-Ing
Priority to DE2002148963 priority Critical patent/DE10248963A1/en
Publication of DE10248963A1 publication Critical patent/DE10248963A1/en
Withdrawn legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00Freewheels or freewheel clutches
    • F16D41/24Freewheels or freewheel clutches specially adapted for cycles
    • F16D41/26Freewheels or freewheel clutches specially adapted for cycles with provision for altering the action
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00Freewheels or freewheel clutches
    • F16D41/06Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
    • F16D41/08Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action
    • F16D41/10Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action with self-actuated reversing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D43/00Automatic clutches
    • F16D43/02Automatic clutches actuated entirely mechanically
    • F16D43/04Automatic clutches actuated entirely mechanically controlled by angular speed
    • F16D43/14Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members
    • F16D43/18Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members with friction clutching members

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

The double freewheel has a locking ring (2) positioned in a bush round a shaft (1) by spacers (5) so that when a second shaft (3) begins rotating, an automatic friction or positive connection comes into effect between the two shafts through radial displacement. The locking ring can be set to an eccentric position using e.g. a cam (4) on the second shaft

Description

In der Praxis sind viele nur in einer Drehrichtung wirkende Freilaufsysteme für Vielzahl von Anwendungsfällen bekannt, jedoch nur sehr wenige Freilaufsysteme, die sowohl im und gegen den Uhrzeigersinn wirken können.In practice, many are only in one Freewheel systems acting in the direction of rotation are known for a large number of applications, however, very few freewheel systems, both in and against can work clockwise.

Diese doppeltwirkenden Freiläufe benötigen zum Sperren des Freilaufes ein relativ hohes, von außerhalb des Freilaufsystems eingeleitetes Rückhaltereib- momentThese double-acting freewheels need to Locking the freewheel a relatively high one, from outside the freewheel system initiated retainer moment

Die im Patentanspruch 1,2 und 3 angegebene Erfindung benötigt kein von außerhalb des Freilaufes eingeleitetes Rückhaltemoment.The specified in claim 1,2 and 3 Invention needed no from outside retention torque initiated by the freewheel.

Die Wirkungsweise ergibt sich wie im Patentanspruch 1,2,3 und 4 schon beschrieben:
In einer Buchse einer Welle ist mit einem umlaufenden Spalt ein Sperr-Ring positioniert, der beim Einsetzen der Drehbewegung einer zweiten Welle automatisch eine reib- oder formschlüssige Verbindung zwischen den beiden Wellen herstellt.
The mode of operation results as already described in patent claims 1, 2, 3 and 4:
A locking ring is positioned in a bushing of a shaft with a circumferential gap, which automatically establishes a frictional or positive connection between the two shafts when the rotational movement of a second shaft begins.

Die exzentrische Verstellung des Sperr-Ringes erfolgt über ein Stellelement z.B. einer Nocke auf der zweiten Welle innerhalb des Sperr-Ringes.The eccentric adjustment of the Locking ring is made via an actuator e.g. a cam on the second shaft inside the lock ring.

Der in jeder Nockenstellung anfangs durch elastische Distanzhalter oder sonstige Rückhalteeinrichtungen in Position gehaltene Sperr-Ring wird dabei zunächst entweder über eine durch die Massenträgheit oder Schwerkraft am Rotieren gehinderten Bremsscheibe an einem wikungslosen Mitdrehen mit der Nocke durch geringfügige Reib- oder Magnetkräfte gehindert, so dass er sich exzentrisch in den Spalt hinein versetzt oder durch eine Bremsscheibe, die durch eine Befestigung außerhalb des Freilaufes an einer Drehbewegung gehindert istThe one in every cam position initially by elastic spacers or other restraint devices in position held lock ring is initially either via a through inertia or gravity to prevent the rotating disc from rotating Co-rotation with the cam prevented by slight friction or magnetic forces, so that it moves eccentrically into or through the gap a brake disc, which is attached to an outside of the freewheel Is prevented from rotating

Der Doppel-Freilauf eignet sich unter anderen dazu, Kindertretfahrzeuge bei stillstehender Tretkurbel zu schieben oder eine ungewollt hohe Fahrgeschwindigkeit über die Tretkurbel zu reduzieren.The double freewheel is suitable under others, children's pedal vehicles with the pedal crank at a standstill to push or an unintentionally high driving speed over the Reduce pedal crank.

Claims (4)

Doppel-Freilauf, der sowohl im als auch gegen den Uhrzeigersinn eine rotierende Bewegung zulassen, als auch über automatisch eingreifende Elemente diese Bewegung zu verstärken oder auch zu sperren ermöglicht. dadurch gekennzeichnet , dass wie in 1 beispielhaft dargestellt, – die geometrischen Formen können vielfältig variiert sein – in einer Buchse einer Welle (1) – hier kann es sich auch um die Nabe eines Rades handeln- mit einem umlaufenden Spalt ein Sperr-Ring (2) verschiebbar positioniert ist, der beim Einsetzen der Drehbewegung einer zweiten Welle (3) automatisch eine reib- oder formschlüssige Verbindung zwischen den beiden Wellen durch ein radiales Versetzen herstellt. Die exzentrische Verstellung des Sperr-Ringes erfolgt über ein Stellelement, z.B. einer Nocke (4) auf der zweiten Welle innerhalb des Sperr-Ringes. Der in jeder Nockenstellung anfangs durch elastische Distanzhalter (5) in Position gehaltene Sperr-Ring wird dabei zunächst über eine durch die Massenträgheit oder Schwerkraft am Rotieren gehinderten Bremsscheibe (6) an einem wirkungslosen Mitdrehen mit der Nocke durch geringfügige Reib- oder Magnetkräfte gehindert, so dass er sich exzentrisch in den Spalt hinein versetzt und dann mit der Nocke umlaufend ein Moment auf die Welle (1) überträgt. Diese Bremsscheibe kann teilweise oder ganz aus einem Material hoher Dichte, im Bedarfsfalle dazu auch mit magnetischen Eigenschaften, – so wie es dann auch für den Sperr-Ring notwendig ist, – bestehen. Zusätzlich zur Bremsscheibe kann dem Sperr-Ring planflächig gegenüberliegend noch eine Abdeckscheibe (7) in den Freilauf eingesetzt sein.Double freewheel, which allow a rotating movement both clockwise and counter-clockwise, and also allows this movement to be increased or blocked via automatically engaging elements. characterized in that as in 1 shown as an example - the geometric shapes can be varied in many ways - in a bushing of a shaft ( 1 ) - this can also be the hub of a wheel - with a circumferential gap a locking ring ( 2 ) is slidably positioned when the rotation of a second shaft ( 3 ) automatically creates a frictional or positive connection between the two shafts by radial displacement. The locking ring is eccentrically adjusted using an adjusting element, e.g. a cam ( 4 ) on the second shaft inside the locking ring. The in each cam position initially by elastic spacers ( 5 ) The locking ring is held in position by a brake disc which is prevented from rotating due to inertia or gravity ( 6 ) prevented from ineffective turning with the cam by slight friction or magnetic forces, so that it moves eccentrically into the gap and then with the cam all the way around for a moment on the shaft ( 1 ) transmits. This brake disc can be made partially or entirely of a high-density material, if necessary also with magnetic properties - as is then also necessary for the locking ring. In addition to the brake disc, a cover disc ( 7 ) be used in the freewheel. Freilauf nach Anspruch 1, bei dem die Abdeckscheibe (7) dazu verwendet wird den Sperr-Ring mittels Führungsnase oder einer Führungskugel und einer Führungsspur mit dem gewünschten Spalt zwischen den Triebelementen zu positionieren, ohne dass mehrere oder überhaupt weitere elastische Distanzhalter dazu benötigt werden.Freewheel according to claim 1, wherein the cover plate ( 7 ) is used to position the locking ring by means of a guide lug or a guide ball and a guide track with the desired gap between the drive elements, without the need for several or any additional elastic spacers. Freilauf nach Anspruch 1 oder 2 bei dem das Stellelement (4) zur Reduzierung der Anlaufreibung am Sperr-Ring eine drehbare Spitze (8) aufweist (2).Freewheel according to claim 1 or 2, in which the adjusting element ( 4 ) a rotating tip to reduce the starting friction on the locking ring ( 8th ) having ( 2 ). Freilauf nach Anspruch 1,2 und 3 bei dem jedoch kein direkt im Inneren des Freilaufes erzeugtes Rückhaltemoment zum Einrücken des Sperr-Ringes in Anspruch genommen werden kann, sondern hier eine von außen- z.B. durch eine Radgabel – bewirkte Festsstellung der Bremsscheibe zur anfänglichen Verdreh-Rückhaltung des Sperr-Ringes eingesetzt wird.Freewheel according to claim 1, 2 and 3, but with none Retention torque generated directly inside the freewheel for engaging the Lock ring in Can be claimed, but here one from the outside - e.g. by a wheel fork - locking the brake disc for initial rotation retention of the locking ring is used.
DE2002148963 2002-10-11 2002-10-11 Double freewheel able to permit clockwise and anti-clockwise rotation has locking ring positioned in bush with gap round it Withdrawn DE10248963A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2002148963 DE10248963A1 (en) 2002-10-11 2002-10-11 Double freewheel able to permit clockwise and anti-clockwise rotation has locking ring positioned in bush with gap round it

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2002148963 DE10248963A1 (en) 2002-10-11 2002-10-11 Double freewheel able to permit clockwise and anti-clockwise rotation has locking ring positioned in bush with gap round it

Publications (1)

Publication Number Publication Date
DE10248963A1 true DE10248963A1 (en) 2004-04-22

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DE2002148963 Withdrawn DE10248963A1 (en) 2002-10-11 2002-10-11 Double freewheel able to permit clockwise and anti-clockwise rotation has locking ring positioned in bush with gap round it

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE81671C (en) *
US1130788A (en) * 1915-03-09 Otis N Baldwin Clutch mechanism.
US2513798A (en) * 1947-04-28 1950-07-04 Milton L Hatfield Centrifugal clutch
AT258654B (en) * 1965-03-11 1967-12-11 Helmut Schischka Centrifugal clutch
DE1425334A1 (en) * 1961-05-26 1969-04-10 Ohlsson & Rice Inc Centrifugal clutch
DE1755015A1 (en) * 1968-03-21 1971-10-14 Zuendapp Werke Gmbh Centrifugal clutch for two-wheeled vehicles with starting device
DE2309166A1 (en) * 1972-02-25 1973-08-30 Innocente Lodi Lodigiani Centrifugal clutch
DE3608047C2 (en) * 1985-03-11 1989-07-27 Aktiebolaget Electrolux, Stockholm, Se
DE19915054A1 (en) * 1999-04-01 2000-10-05 Knud Klingler Device for adjusting an adjustment section on an axle adjusted by a drive mechanism turning in both directions and fixed in either adjusted position has two cheeks moved by a drive mechanism and connected to an arm on a scissor device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE81671C (en) *
US1130788A (en) * 1915-03-09 Otis N Baldwin Clutch mechanism.
US2513798A (en) * 1947-04-28 1950-07-04 Milton L Hatfield Centrifugal clutch
DE1425334A1 (en) * 1961-05-26 1969-04-10 Ohlsson & Rice Inc Centrifugal clutch
AT258654B (en) * 1965-03-11 1967-12-11 Helmut Schischka Centrifugal clutch
DE1755015A1 (en) * 1968-03-21 1971-10-14 Zuendapp Werke Gmbh Centrifugal clutch for two-wheeled vehicles with starting device
DE2309166A1 (en) * 1972-02-25 1973-08-30 Innocente Lodi Lodigiani Centrifugal clutch
DE3608047C2 (en) * 1985-03-11 1989-07-27 Aktiebolaget Electrolux, Stockholm, Se
DE19915054A1 (en) * 1999-04-01 2000-10-05 Knud Klingler Device for adjusting an adjustment section on an axle adjusted by a drive mechanism turning in both directions and fixed in either adjusted position has two cheeks moved by a drive mechanism and connected to an arm on a scissor device

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OP8 Request for examination as to paragraph 44 patent law
R120 Application withdrawn or ip right abandoned