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DE1010345B - Precision mechanical directional lock - Google Patents

Precision mechanical directional lock

Info

Publication number
DE1010345B
DE1010345B DEV7340A DEV0007340A DE1010345B DE 1010345 B DE1010345 B DE 1010345B DE V7340 A DEV7340 A DE V7340A DE V0007340 A DEV0007340 A DE V0007340A DE 1010345 B DE1010345 B DE 1010345B
Authority
DE
Germany
Prior art keywords
directional lock
precision mechanical
spring
mechanical directional
wrapping around
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
DEV7340A
Other languages
German (de)
Inventor
Dr-Ing Fritz Faulhaber
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.)
Voigtlander AG
Original Assignee
Voigtlander AG
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
Application filed by Voigtlander AG filed Critical Voigtlander AG
Priority to DEV7340A priority Critical patent/DE1010345B/en
Publication of DE1010345B publication Critical patent/DE1010345B/en
Pending legal-status Critical Current

Links

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
    • F16D41/20Freewheels or freewheel clutches with expandable or contractable clamping ring or band

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Springs (AREA)

Description

Feinmechanisches Richtgesperre Für Zwecke der Feinmechanik sind bereits eine größere Anzahl soggenannter Richtgesperre bekannt, z. B. das aus Zahnkranz und Sperrklinke bestehende Sperrgetriebe, das man auch als Einwegkupplung be zeichnen kann. Dieses ist jedoch nicht dazu geeignet, eine stufenlose Kupplung bzw. Sperrung zu bewerkstelligen. Unter den stufenlos arbeitenden Sperrgetrieben ist besonders die sich mit Vorspannung um einen zylindrischen Zapfen legende Wickelfeder bekannt. Sie ist aber mit dem Nachteil behaftet, daß sie aus mehreren, ja eventuell sogar vielen Windungen bestehen, muß, um wirksam sein zu können. Sie benötigt demzufolge recht viel Platz und. weist andererseits einen großen Leerhub bis zum Eingriff auf.Precision mechanics Richtgesperre For purposes of precision mechanics are already a larger number of so-called directional lock known, z. B. the ring gear and pawl existing locking gear, which can also be referred to as a one-way clutch can. However, this is not suitable for a stepless coupling or blocking to accomplish. Among the continuously variable locking gears is special the winding spring, which is placed around a cylindrical pin with bias, is known. However, it has the disadvantage that it consists of several, and possibly even must consist of many turns in order to be effective. She therefore needs quite a lot of space and. on the other hand, has a large idle stroke up to engagement.

Die Erfindung betrifft ein, Gesperre, das zwar auch nach dem Prinzip der Wickelfeder arbeitet, aber die genannten Nachteile der bekannten Wickelfedergesperre vermeidet. Dies ist dadurch erreicht, daß nur eine einzige Federwindung vorgesehen ist, die sich. aber mit Vorspannung in eine kreisförmige Keilnut einschmiegt. Der Keilwinkel der Keilnut ist dabei derart bemessen, daß unter Berücksichtigung der vorhandenen Vorspannung der Federwindung eine vollkommene Sicherheit gegen Rückdrehung der Federwindung gegeben ist. Nur das eine Ende der Federwindung ist hierbei in radialer Richtung hinweggeführt und steht je nach der Konstruktion mit dem Gestell bzw. mit einer Betätigungshandhabe in Verbindung.The invention relates to a locking mechanism, although it is also based on the principle the clock spring works, but the aforementioned disadvantages of the known clock spring lock avoids. This is achieved in that only a single spring turn is provided is that yourself. but nestles in a circular keyway with bias. Of the The wedge angle of the keyway is dimensioned such that, taking into account the existing bias of the spring coil a complete security against reverse rotation the spring coil is given. Only one end of the spring coil is in here guided away in the radial direction and is depending on the construction with the frame or in conjunction with an operating handle.

Die Erfindung ist an Hand eines in der Zeichnung mittels zweier Figuren, dargestellten Ausführungsbeispieles näher erläutert. Andere Ausführungsformen liegen im Bereich der gegebenen Anwendungsmöglichkeiten der Erfindung.The invention is illustrated in the drawing by means of two figures, illustrated embodiment explained in more detail. Other embodiments are available within the scope of the given application possibilities of the invention.

In der Fig. 1 ist der Querschnitt durch das erfindungsgemäße Gesperre mit einer an dem zylindrischen Zapfen 1 angebrachten Keilnut 2 gezeigt, in die sich die Federwindung 3 als Klemmgesperre mit Vorspannung einschmiegt, wobei das eine Ende 4 der Federwindung 2 radial nach außen weggeführt ist. Der Keilwinkel a der Keilnut 2 ist derart bemessen, daß die vorgespannte Federwindung 3 bei einer an dem Federende 4 in der Richtung 5 (Fig. 2) angreifenden Kraft verengt wird und, eine sichere Sperrung zwischen den Gliedern 3 und 1 stattfindet, während die Feder bei einem Kraftangriff an dem Federende in der entgegengesetzten Richtung 6 von der durch die Vorspannung gegebenen Reibung befreit und gegenüber dem Zapfen drehbar ist.In Fig. 1 is the cross section through the locking mechanism according to the invention with a keyway 2 attached to the cylindrical pin 1 into which the spring coil 3 nestles as a clamping lock with bias, one End 4 of the spring coil 2 is led away radially outward. The wedge angle a the Keyway 2 is dimensioned such that the pretensioned spring coil 3 at a the spring end 4 is narrowed in the direction 5 (Fig. 2) acting force and, a secure locking between the links 3 and 1 takes place while the spring when a force is applied to the spring end in the opposite direction 6 from freed from the friction given by the preload and rotatable with respect to the pin is.

Claims (1)

PATENTANSPRUCH: Feinmechanisches Richtgesperre, das aus einem zylindrischen Zapfen mit einer ihn umschlingenden Wickelfeder gebildet ist, dadurch gekennzeichnet, daß der Zapfen (1) eine kreisförmige Keilnut (2) aufweist, in die sich eine einzige Federwindung (3) unter Vorspannung einschmiegt, deren eines Ende (4) nach außen, z. B. radial, hinweggeführt ist. In Betracht gezogene Druckschriften: Deutsche Patentschrift Nr. 867 729; »Hütte«, Des Ingenieurs Taschenbuch, 26. Auflage, Berlin 1936, Bd. I, S. 307 Absatz 6 »Reibung bei Umschlingung«.PATENT CLAIM: Precision mechanical directional lock consisting of a cylindrical Pin is formed with a winding spring wrapping around it, characterized in that that the pin (1) has a circular keyway (2) in which a single Spring coil (3) nestles under pretension, one end (4) of which faces outwards, z. B. is carried away radially. Publications considered: German patent specification No. 867 729; "Hut", Des Engineer's Pocket Book, 26th edition, Berlin 1936, vol. I, p. 307 paragraph 6 "Friction when wrapping around".
DEV7340A 1954-06-01 1954-06-01 Precision mechanical directional lock Pending DE1010345B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV7340A DE1010345B (en) 1954-06-01 1954-06-01 Precision mechanical directional lock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV7340A DE1010345B (en) 1954-06-01 1954-06-01 Precision mechanical directional lock

Publications (1)

Publication Number Publication Date
DE1010345B true DE1010345B (en) 1957-06-13

Family

ID=7571895

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV7340A Pending DE1010345B (en) 1954-06-01 1954-06-01 Precision mechanical directional lock

Country Status (1)

Country Link
DE (1) DE1010345B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19755631A1 (en) * 1997-12-15 1999-06-24 Faure Bertrand Sitztech Gmbh Clamp direction blocking device, esp. for window lift mechanism and seat adjustment mechanism in motor vehicle

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE867729C (en) * 1951-02-24 1953-02-19 Licentia Gmbh Device for visualizing heart currents

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE867729C (en) * 1951-02-24 1953-02-19 Licentia Gmbh Device for visualizing heart currents

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19755631A1 (en) * 1997-12-15 1999-06-24 Faure Bertrand Sitztech Gmbh Clamp direction blocking device, esp. for window lift mechanism and seat adjustment mechanism in motor vehicle
DE19755631C2 (en) * 1997-12-15 2000-04-13 Faure Bertrand Sitztech Gmbh Locking direction lock, especially for window regulators and seat adjustment devices on motor vehicles

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