DE202728C

DE202728C -

Info

Publication number: DE202728C
Application number: DENDAT202728D
Authority: DE

Description

Gegenstand vorliegender Erfindung ist eine Friktionskupplung, die so eingerichtet ist, daß nur eine Drehrichtung der antreibenden Welle zur Erzeugung der zur Kupplung nötigen Friktion geeignet ist, daß aber das geringste Bestreben, die antreibende Welle in entgegengesetzter Richtung zu drehen, diese Friktion aufhebt, d.'h. die Kupplung löst, und daß endlich ein etwa eintretender ίο Rücklauf der anzutreibenden Welle ein Mitnehmen der anderen Welle nicht bewirkt. , Einrichtungen ähnlicher Art bestehen bereits zum Kuppeln der Antriebwelle mit der Motor^· welle bei Explosionsmotoren bei den Andrehkurbeln für Motorwagen; allein eine vollkommen sichere Wirkungsweise wurde durch deren Konstruktion bis jetzt nicht gewährleistet. The present invention is a friction clutch which is set up so that only one direction of rotation of the driving shaft is suitable for generating the friction necessary for coupling, but that least effort to turn the driving shaft in the opposite direction, removes this friction, i.e. the clutch releases, and that finally an approximately occurring ίο The return of the shaft to be driven does not cause the other shaft to be carried along. , Facilities of a similar type already exist for coupling the drive shaft to the motor ^ shaft in explosion engines in cranks for motor vehicles; alone became a completely safe mode of action not guaranteed by their construction up to now.

Gegenstand vorliegender Erfindung ist nunmehr eine Kupplung, welche infolge ihrer einfachen und einheitlichen Konstruktion allen an eine sicher wirkende Andrehkurbel zu stellenden Anforderungen Genüge leistet. Auf der Zeichnung sind zwei beispielsweise as Ausführungsformen des Erfindungsgegenstandes in Verbindung mit einer Antriebwelle und einer anzutreibenden Welle dargestellt, wie sie beispielsweise bei Andrehkurbeln für ein mit einem Explosionsmotor ausgerüstetes Automobil Verwendung "finden.The present invention is now a clutch, which as a result of her simple and uniform construction all in a safe-working crank handle meets the requirements to be set. For example, there are two on the drawing As embodiments of the subject matter of the invention in connection with a drive shaft and a shaft to be driven, such as those used in cranks for an automobile equipped with an explosion engine use ".

Bei der durch die Fig. ι bis 3 dargestelltenIn the illustrated by FIGS

Ausführungsform zeigt Fig. 1 einen Schnitt längs der Wellenachse;, die Fig. 2 und 3 bilden Schnitte senkrecht zum Schnitt nach Fig. i, und zwar Fig. 2 nach I-II und Fig. 3 α ist die anzutreibende Welle, auf der die Friktionstrommel b festsitzt. Die Antriebwelle c ist in dem am Maschinengestell be- festigten Träger d gelagert und mit dem Rollensteigrad /? fest verbunden. Sie endigt gegen die Welle α mit einem Zapfen p, der ■ in der zentrischen Bohrung der Friktionstrommel b seine Führung findet. Um das Rollensteigrad h ist die Hülse I¹ angeordnet, die mit Schlitzen ausgestattet ist, durch welche die Rollen r des Rollensteigrades/z .: greifen. Die Hülse I¹ trägt auf der Seite gegen die Welle α hin den Schlußring η, in welchem der Deckel 0 sitzt. Auf der anderen Seite schließt sich an die Hülse Z¹ das mit ihr fest verbundene Rollensteigrad an, dessen Rollensteigflächen im Vergleich zu denjenigen des Rollensteigrades h entgegengesetzt gerichtet' sind. Um dieses auf der Welle c drehbare Rollensteigrad / ist die Hülse i angeordnet, die mit Schlitzen zum Durchgreifen der Rollen s ausgestattet ist und an der gegen den Träger d gerichteten Stirnwand einen Schlitz besitzt, in dem die Feder k so angeordnet ist, daß sie die Hülse i fortwährend gegenüber dem Steigrad/ in der dem Pfeil der Fig. 2 entgegengesetzten Richtung zu drehen bestrebt ist, so daß also die Hülse i die durch ihre Schlitze greifenden Rollen s stets aus der Friktionsstellung zu führen sucht. Das Rollensteigrad / mit der Hülse i ist von der Friktionstrommel / umgeben, welche die Nase g trägt, die einen Schlitz ■ besitzt, in welchen der Lappen e des Trägers d greift. Die Friktionstrommel / ist also vor Drehung gesichert Zwischen dem Zapfen ρ Embodiment of Fig. 1 shows a section along the shaft axis ;, FIGS. 2 and 3 constitute sections perpendicular to the section according to FIG. I, and specifically, FIG. 2 to I-II and Fig. Α 3 is the driven shaft, on which the Friction drum b is stuck. The drive shaft c is mounted in the carrier d attached to the machine frame and connected to the roller climbing wheel /? firmly connected. It ends against the shaft α with a pin p which ■ finds its guidance in the central bore of the friction drum b. The sleeve I ^{1 is} arranged around the roller climbing wheel h and is equipped with slots through which the rollers r of the roller climbing wheel / z.: Engage. On the side facing the shaft α , the sleeve I ¹ carries the locking ring η in which the cover 0 is seated. On the other hand, the sleeve Z ^{1 is followed} by the roller climbing wheel firmly connected to it, the roller climbing surfaces of which are opposite to those of the roller climbing wheel h '. To this on the shaft c rotatable roller climbing wheel / is arranged the sleeve i , which is equipped with slots for reaching through the rollers s and on the end wall directed towards the carrier d has a slot in which the spring k is arranged so that it the i sleeve continuously in the arrow of Fig. 2 opposite direction endeavors to rotate relative to the ratchet wheel /, so that therefore the sleeve s seeks to perform the Friktionsstellung i the cross slots by their rollers always. The roller climbing wheel / with the sleeve i is surrounded by the friction drum / which carries the nose g , which has a slot ■ in which the tab e of the carrier d engages. The friction drum / is thus secured against rotation between the pin ρ

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Claims

. 3 opposite direction to the climbing wheel /? to rotate, so that the sleeve Z1 always seeks to guide the rollers r in the friction position. If now 'the drive shaft c forward,: 10 d. H. Rotated in the sense of the arrows in FIGS. I to 3 of the drawing, the rollers r are pressed against the friction drum b fixed on the shaft α by the 'Steigrad Λ and the latter is rotated at the same time. The turning of the drive shaft c in the opposite direction is not possible because the sleeve ll and thus also the climbing wheel / must rotate in the same direction, 'whereby the rollers s' immediately come into a friction position and the climbing gear / with the sleeve ll in the Set the friction drum secured against rotation. . _ ■; ■ ... Let us assume that the shaft α forms the motor shaft of an explosion engine and the shaft c is the drive shaft provided for starting the motor; the forward rotation of the motor shaft is in the direction of the arrows shown in the drawing. The motor is thus started by turning the drive shaft c in the direction of the arrows. If during this drive the motor shaft rotates back due to incorrect ignition (i.e. rotation in the arrows in the drawing in the opposite direction), i.e. at a moment when the rollers r in frictional '■:'. ' position, the friction drum b will try to take the rollers r and the sleeve / 'with it in this rotation. However, since the sleeve ll forms one piece with the climbing wheel /, the rollers s immediately come in. Friction position to the drum /. But this is secured against rotation. The climbing wheel / and the sleeve Z1 are locked immediately. The rollers r now come to rotate and simply roll on the inner surface of the drum b until the drive is set and the motor is switched off again. The reverse rotation of the motor shaft therefore has no appreciable effect on the drive shaft c. In the embodiment illustrated by FIG. 4, the two climbing wheels for the rollers r and * are arranged similarly to the embodiment described above. On the other hand, the friction drum b opposite the rollers r is built into the drum, which is opposite the upright rollers s and is secured against rotation, and with the help of the hub η> λ and 60, which is equipped with two claws (not shown in the drawing), which grips through the motor shaft α, coupled to the claws abutting pin ν with the motor shaft. The mode of operation of this embodiment is analogous to that described above, in that the same structural parts are present here, only provided with a modification adapted to a specific motor shaft arrangement. The corresponding structural parts of FIGS. 1 and 4 are denoted by the same letters, and it is assumed in FIG. 4 that the drum f is secured against rotation in a manner similar to that shown in FIG. Godfather ν t-An Proverbs:

1. Non-return crank, on the drive shaft (c) of which a roller wheel (h) is stuck, which is used to generate the coupling with the motor shaft (a)

. for the forward drive necessary ■ friction against a friction drum (b) fixed on the motor shaft end is used, and between this

Roller climbing wheel and the friction drum (b ) fixed on the motor shaft (a) a sleeve (V) equipped with slots for reaching through the rollers (r) of the climbing wheel (h ) lies loosely on the drive shaft (c) , which sleeve rotates backwards preventive locking device, thereby identifying

. ·. draws that between the climbing wheel (I) called locking device and the friction drum secured against rotation (f) one with slots for reaching through

'the · rollers (s) of the climbing wheel (I) equipped, under spring pressure, rotating. bar on the sleeve (l ^l ) mounted drum (i)

■ engages, which, when turned backwards, brings the climbing rollers (s) into a frictional position 10 »and thereby uncouples the climbing rollers (r) with the sleeve (^ /.

2. Friction clutch according to claim 1, characterized in that a spring (m) is arranged between the roller climbing wheel mentioned under 1. (h) and the sleeve (p) equipped with slots for the associated climbing rollers (r) , which when the roller climbing wheel is rotated forward (H)

'The pod (l ·) tends to automatically move the no climbing rollers (r) into the frik-. management position.

1 sheet of drawings.

BERLIN. GEDRUCKT IN DER REICHSDRUCKEREI.BERLIN. PRINTED IN THE REICHSDRUCKEREI.