DE167125C

DE167125C -

Info

Publication number: DE167125C
Application number: DENDAT167125D
Authority: DE

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Gegenstand vorliegender Erfindung bildet ein neuartiges Schaltwerk, durch welches die gleichmäßige Drehbewegung einer in beiden Richtungen drehbaren Scheibe mittels einer Lenkstange oder eines Schwinghebels in eine ungleichmäßige Drehbewegung eines stets nur in einer Richtung drehbaren Schaltrades umgewandelt wird.The present invention forms a novel switching mechanism, through which the uniform rotary movement of a disc rotatable in both directions by means of a Handlebar or rocker arm in an uneven rotational movement of an always is converted only in one direction rotatable ratchet wheel.

Dieser Zweck wird dadurch erreicht, daßThis purpose is achieved in that

ίο in radialen Schlitzen drehbar gelagerter Scheiben bewegliche Federbolzen nach Art der bekannten, mittels Schaltrad und Sperrklinke bewegten Schaltgetriebe abwechselnd in die Ausschiitzungen eingreifen und die Scheiben in Umdrehung versetzen, wobei der Abstand dieser Zapfen von der Scheibenachse in beiden Totpunktlagen ein größerer ist wie in der Mitte des Hubes, wodurch die Scheiben während eines Zapfenhubes von einem Totpunkt bis zur Mitte des Hubes allmählich schneller und von hier bis zum anderen Totpunkt mit abnehmender Geschwindigkeit, also bei gleichmäßigem Antriebe ungleichmäßig bebewegt werden. Der Grad dieser Ungleichmäßigkeit wächst bei Näherlegung der Hubmitte zur Scheibenachse bezw. bei einer nicht geradlinigen, z. B. kurvenartigen Führung der Zapfen und nimmt umgekehrt ab.ίο rotatable in radial slots Slices movable spring bolts in the manner of the known ones, by means of a ratchet wheel and pawl moving gearbox alternately intervene in the openings and the discs set in rotation, the distance of these pins from the disk axis in both Dead center positions are greater than in the middle of the stroke, which causes the disks gradually faster during a pin stroke from one dead point to the middle of the stroke and from here to the other dead point with decreasing speed, i.e. moved unevenly with uniform drives will. The degree of this unevenness increases as the center of the stroke is brought closer to the disc axis, respectively. with one not rectilinear, e.g. B. curved guidance of the pin and vice versa decreases.

Die Vorrichtung eignet sich für manche technischen Betriebe, besonders zur Steuerung der Ventile usw. an Maschinen verschiedener Art, z. B. für Viertakt-Gas-und Verbrennungsmotoren, indem die größten Scheibengeschwindigkeiten, auf eine Steuerwelle übertragen, zum schnelleren öffnen und Schließen der Ventile usw., also zur Verminderung der Totarbeit benutzt werden können und gleichzeitig, da eine solche Vorrichtung zuverlässig und sicher arbeitet, ohne weiteres ein Anlaufen dieser Maschinen nach beiden Riehtungen hin gestatten, was bei den bekannten Steuervorrichtungen nicht der Fall ist.The device is suitable for some technical operations, especially for control the valves etc. on machines of various types, e.g. B. for four-stroke gas and internal combustion engines, by transferring the greatest disc speeds to a control shaft for faster opening and closing of the Valves etc., so can be used to reduce dead work and at the same time, since such a device works reliably and safely, a start-up is easy These machines allow in both directions what the known Control devices is not the case.

In der Zeichnung istIn the drawing is

Fig. ι eine Ausführungsform des Schaltwerkes in Seitenansicht mit geradliniger Zap fen führung,Fig. Ι an embodiment of the switching mechanism in side view with straight tenon guide,

Fig. 2 dieselbe Vorrichtung in einer Aufsicht mit Schnitt nach A-B der Fig. 1,Fig. 2 the same device in a plan view with section according to AB of Fig. 1,

Fig. 3 eine Ausführungsform in Seitenansicht mit in Kreisbogen geführten Zapfen.3 shows an embodiment in side view with pegs guided in an arc of a circle.

Die Scheiben g sind in achsialer Hinsicht mit Ausschiitzungen f, f¹, f², f^s versehen, die in gleichen Abständen voneinander angeordnet werden und in welche Zapfen e und e¹ greifen, die in einem Kopfstück i eingebaut sind und hier durch Federn k (Fig. 2) gegen das Schaltrad gedrückt werden.The disks g are axially provided with cutouts f, f ¹ , f ² , f ^s , which are arranged at equal distances from one another and in which pins e and e ¹ engage, which are installed in a head piece i and here by springs k (Fig. 2) are pressed against the ratchet.

Das Kopfstück ζ ist (Fig. 1 und 2) mit der Triebstange c gelenkig verbunden und erhält hier durch gleichgerichtete Führungsstäbe mm eine Geradführung, während es bei Fig. 3 mit der Triebstange c¹ starr verbunden bezw. von dieser geführt, hier eine kreisbogenförmige Bewegungslinie beschreibt.The head piece ζ is (Fig. 1 and 2) with the rod c articulated and receives here by rectified guide rods mm a straight line, while in Fig. 3 with the rod c ¹ rigidly connected respectively. guided by this, here describes a circular arc-shaped movement line.

Die einzelnen Teile zwischen den Schlitzen der Scheiben g sind auf der ganzen Länge hin abgeschrägt, um in der einen Richtung, nämlich beim Zurückschwingen, das Weiter-The individual parts between the slots of the disks g are bevelled along their entire length in order to

'(2. Auflage, ausgegeben am 27. Mär^ igob.) '(2nd edition, issued on March 27th .)

Claims

to allow the pegs e and e ^{1 to} slide from f to f at any point in the slots.

The processes involved in the movements are as follows:

If the disc a, which in a gas engine z. B. can sit on the working shaft, moved in any direction, this movement is divided by the drive rod c BEZW. c ¹ the head piece i with and

ίο drives the same according to Fig. ι and 2 downwards, the pin e ¹ here BEZW against the high edge. the stop of the slot / (Fig. i) places on the right and the disc g in the direction of arrow I takes. The movement of the disk now increases steadily as the head piece i descends, as the pin c ¹ gradually slides towards the disk axis in this slot, reaches its climax in the middle of the stroke and increases from there to the end of the stroke to the same extent as with the Approach to the axis again.

During this process the

Pin e over the beveled surfaces of the disc parts, translated into the middle of the stroke, the slot / ' ^{to slide exactly at the bottom dead center behind the stop of the slot / 2} , whereupon the play just described is repeated when the head piece i goes up, etc.

According to Fig. 3, these operations are essentially the same, with the difference that the irregularity of the disk movement after this execution is a different one there, by having two different degrees of unevenness in the Revolution are generated.

Is ζ. Β the highest speed of rotation of the disk g in Fig. 3 with a direction of movement of the disk α in the direction of arrow II equal to that of the drive itself, the same is greater for the second direction of movement of the drive, because in the first case the crank pin α ^{1 of} the disks at The center of the stroke is further away from the axis d of the drive rod c swinging about the same and in the second case is closer to the same, as a result of which the lever ratio of the drive rod changes in both cases.

As a result of this peculiarity, the degree of unevenness of the disk movement can be arranged and determined by further, conscious changes in these lever ratios between a ¹ , d and e ^1.

The unevenness of the disk movement according to FIG. 1 can also be increased within certain limits by a more or less curved arrangement of the guide rods m (not shown in the drawing) the guidance of the head piece i becomes an odd one, with one pin in the middle of the stroke Way closer and the other gets further from the disc axis. The direction of rotation of the disks g is determined by arranging them to the right or left in relation to the plane of movement of the head piece i or by right or left beveling of the disk parts between the slots. We reserve the right to use these devices, in contrast to the representations made, where it is important to transform uneven movements into those of a steady gait, in that, with a suitable arrangement, the unevenness of one cancels out that of the other.

By arranging a second disk g on the other side of the head piece i, which is provided with similar cutouts, the device can also be built for heavy use. will. For this purpose, the correspondingly designed head piece i contains a further pair of pins which then act simultaneously with the first on this disk, which is connected to the shaft of the former.

Instead of the cutouts in the disks g and the pin arrangement in i , the head pieces can be provided with cutouts which cut longitudinally to the right and left of the center of the cross-section of the same and then one side (according to Fig. 1 of the drawing) one to the right upwards and one left beveled downwards.

Godfather NT-A ν SPRU c η:

Schaltwark for converting the uniform rotation of a crank disk into an uneven rotation of a ratchet wheel, characterized in that a straight or curved head piece ^ which is articulated on a handlebar or a rocker arm (c) moved by a crank disk (α) , is provided with spring bolts (ee ^l ) which, when the head piece moves on a ratchet wheel (g) provided with inclined surfaces, only move it in one direction, while when the head piece swings back, they are pushed back by the inclined surfaces and have no effect on the Exercise ratchet wheel.

1 sheet of drawings.