DE1665365A1 - Rotary contactor with point contacts - Google Patents

Description

ROGERPRBUX, 27, rue d ^ aubonae, Saint Gratien, VaI d'Oise,

France

Rotary contactors with point contacts

The invention relates to a rotary contactor with punctiform Contacts ο

In numerous fields of application, a large number of electrical contacts must be actuated within regular intervals and numerous relevant devices are already known for this. However, these devices are always with associated with a significant disadvantage that those components, which are imparted a relative rotational movement and periodically come into common contact with each other, rub or slide against each other, during the contact phase This results in faster abrasion of these parts with the transfer of conductive materials to the insulating ones Materials that cause rapid wear and tear and malfunctions

Among other things, the previously known devices have the disadvantage

on that they have intricate and expensive switching systems, which are also often the source of interference «.

The invention now has the task of Mugrunde, rotary contactors to create that do not have the specified disadvantages and advantageously differ from the known contactors duroi. distinguish a very simple structure, whereby great security in the functioning and a remarkable lightness

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switching operations as well as a very long service life of the device o The rotary contactors according to the invention with point contacts are essentially characterized by that they have two relatively movable surfaces, at least one of these surfaces a rotary movement is imparted and components are present on its periphery which are capable of making contacts in To come into contact or to actuate the same carried by the other surface, the shapes of these Surfaces are such that the paths of these elements Curves with turning points in the form of Oycloiden, Bpioycloiden or HypoeyeIoiden represent such that these elements thus actuate the contacts or come into contact with them, which are arranged at the reversal points of the paths, namely without relative friction or sliding of these surfaces to one another »

In order to achieve the desired walking paths, it is sufficient, for example, that the first surface is in the section along the plane of the walking path has a circular section, while the second surface has a circular or rectilinear section, wherein the first surface rolls without sliding on the second surface.

The invention is explained below, for example, with reference to the accompanying drawings Fig. 1 shows achematisoh the way in which a hypooyoloid is generated o

Fig. 2 is <än cross sectional ei term duroh a first K _Q ntaktgeber invention taken along the line H-II of the Figure 3 * Fig. 3 is a section along the line III-III of FIG.

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§AD ORtGiNAL

Fig. 4 shows schematically]! a partial view of an inventive Contactor ο

Figures 5 and 6 are partial sections of a modified embodiment an inventive contactor switch, along the Line V-V according to FIG. 6 or “in an axial plan view *. 7 is a schematic representation of an individual part of a modified embodiment according to the invention.

With reference to FIG. 1, it is explained how a hypocycloid is produced. If a circle R, here rolls as a "rolling element" with the center 0 without sliding inside a circle having the fixed base 0, each point of the rolling element R describes a Hypocycloide H ₀ Thus applies Ia ₀ B ₀ when the center 0 of the layers O ₁ , O ₈ , O ₃ , O ₄ , after the same arcs OL ₁ , Ot ₈ , a _s , a ₄ have been traversed, that the point a _{0 of} the rolling element R successively the positions a _x , a ₈ , a ₃ and a ₄ assumes, as shown in Figo 1 _o The hypocycloid generated in this way has various turning points that are located on the base circle, and in the case of the Figo litellen the points a ₀ and a ₄ zteei such turning points _O

When calibrating the rolling element R now no longer in the interior but shifts outwards with respect to the base circle C, this creates an epicycloid. As soon as it rolls over a straight base, a cycloid is created »

ο The epicycloids and the cycloids also have turning points

oo in corresponding contact with the circle and the straight line ^ Basie aufo

_ω In principle, the invention consists in that the oo to be actuated

αχ or contacts to be touched on a circle or a straight line Base at the points of the turning points of the path eicö corresponding element are arranged, which is a rolling element;

is assigned, which without sliding movement on the circle or the straight line of the base unrolled

This results in that between the various points of reversal is virtually no friction between the base circle and the rolling element is present, since the relative movement of these components represents a rotational movement without sliding, and h independently of the speed of the rolling element, d _o. the frequency with which the contacts are activated «,

The circle or the straight line of the base represent the first surface in the sense of the above definition of the invention, while the rolling element represents the second surface.

In the case of the depicted in FIGS. 2 to 7 according to the invention In the embodiment, the path of the component that actuates the contacts or comes into contact with them is a hypocycloid represents, this modified embodiment according to the invention in the case of a cycloid or an epicycloid for the relevant expert is obvious "

When in the Pig. 2 and 3 reproduced embodiment of the invention, a first stationary surface takes the place of the base circle and is formed by a cylindrical structure A, in the interior of which a motor shaft B is coaxial with the structure A and is set in rotation by a movable structure D. _e

A second surface is arranged on this structure, pivotable about a geometric axis XX, which is formed by an organ E, the first part E ₁ of which takes the place of the rolling element and the circumference R _{1 of which has} a toothing, and in the form of a gear with a Gear rim A ₁ cooperates, which is carried by the stationary structure A A «second part E _{8 of} the organ E has arms which are at a distance from the

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Achae XX equals the radius of the _{rolling element or line of conductive components traversed by part E 1} , namely in the case shown here four such elements O ₁ ) O ₈ ) G ₃ and O ₄ ) which are used between the terminal pairs M ₁ TM ₈ , M ₈ -M ₄ , M ₈ -M _6, etc. to produce a Kentakt, which protrude into the interior of the stationary structure A at points _t such as P ₁ and P ₈ . These correspond to the turning points of the oycloids, such as H ₁ , which represent the paths of the conductive elements O ₁ , O ₈ , O ₃ and O ₄ electrical circuit between the appropriate terminals at these points.

You can of course provide more than two terminals at each of the corresponding points corresponding to the reversal points of the paths of the conductive elements, and you can _{arrange any number of conductive elements on the part E 1 of} the movable structure E, in a regular or non-regular manner are distributed around the perimeter of this structure _e

One can apply in the same way a plurality of movable members, such as E ₈ , which have conductive elements and are associated with the same Hollelement, without departing from the spirit and scope of the invention, each of the movable members cooperating with a terminal arrangement which is connected to suitable Places arranged aind «You can still use any suitable type of drive for the movable structure E ·

In the embodiment according to the invention according to FIGS. 4 to 8 one proceeds from the assumption for the sake of simplicity from) that organs are used here, as described above with reference to Figs. 2 and 3 explains nord aind «

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This results in the same corresponding functions.

In the case of the contactor reversal shown in Figo 4, the part E _{8 of} the movable structure has one or more arms that no longer carry conductive elements but one or more effective elements that can be conductive or non-conductive and are able to repel pliable lamellas, such as L ₁ , which are carried by the stationary structure A and are arranged at points which _{correspond to the reversal points of the path of the elements D 1} »The schmJe gsameo lamellae form part of a circuit, the connection terminals as G ₄ and O including _7, which are supported by the stationary structure ₀ In the rest position, each of the lamellae L ₁ includes the equivalent circuit of the terminal C _6, but when the ElementD _t arrives at a reversal point of the Hypocycloide, the lamella L is _{1 separated} from the connection terminal C ₆ and brought against the connection terminal G _7. The element D ₁ then continues its path, with di e flexible lamella L _{1 is} no longer pressed in the direction of the connection terminal C ₇ and, due to its elasticity, comes to rest _{against the connection terminal G e «}

Reproduced in the Figo 5 and 6, modified embodiment of the invention is similar in all respects to that naoh you Figo 4 wherein supple! T ₁ the role of pliant fins _L1 assume "However, to avoid any contamination of the terminals C ₆ and Q y, the same are arranged in a cavity F _{1 of} the stationary structure A, where in the same way the outer end of the element S _{1 is} displaced and thus leads to a contact with these terminals.

Finally, FIG. 7 shows an extremely simple application of the subject matter of the invention is an effective element

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D ₁ , which is carried by the part E _{a of} the movable structure E, in passing without sliding and without friction actuates a push button P of an independent contact switch B, the push button P on the fixed structure A at a reversal point of the path of the element D _{1 is} arranged.

Naturally, the same element D _{1 can control} several electrical conductors, which are arranged on the stationary structure at different points, which correspond to the various reversal points of the associated path. In the same way, the movable _{element O 2 can have} a plurality of arms, the elements D ₁ and act in a corresponding manner on one or more "individual contactors",

As already stated above, the invention includes all embodiments where the corresponding structural elements run paths with reversal points in the form of cycloids, hypocycloids and epicycloids and thereby actuate contacts without friction and without sliding movement, the type of drive, such as rotary movement, of these elements supporting organs is insignificant _o

According to the invention, the following advantages are achieved: The active components of the movable surface can be moved at a very high speed without any noticeable wear and tear on these elements and the contacts with which they come into contact _β

These components exert a very high pressure against the contacts when the drive torque for the rotary movement these components are small “S) he needs contactors to have no insulating component »

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Claims (1)

ng. Walter Meissner ο Dipi.-ing. Herbert Tischer 1 BERLIN 33, HERBERTSTRASSE 22 MUNICH Telephone: 8 87 72 37 - Wired word: Invention Berlin Poetry check account: W. Meissner, Berlin West 12282 Bank account: W. Meissner, Berliner Bank A.-G., Depka 36,,. "_" .... _ ~ / ^ _n . · * ■ _ ..,. . «.%. ι / ■ λ_ Berlln-Halensee, Kurfürstendamm 130 1 BERLIN 33 (GRUNEWALD), den , j , J f ^ y HerberletraBe 22 * '' '' / Roger Preux Claims 1 »Rotary contactors with punctiform contacts, characterized in that they have two surfaces (A, D) which can be moved relative to one another, at least one of these surfaces being imparted a rotary movement and components (G ₁ to O ₄ ) being present on their circumference which are in the position are to come into contact with or to actuate contacts which are carried by the other surface, the shapes of these surfaces being such that the paths of these elements are curves with reversal points (a ₀ , a ₄ ) in I ¹ Orm of Represent oycloids, epicycloids or hypocycloids in this way that these elements thus actuate the contacts or come into contact with _{one another, which are arranged at the reversal points Ca 0} , a ₄ ) of the pathways, without any relative friction or sliding of these surfaces with respect to one another. 2. Rotary contactor according to claim 1, characterized in that the surface carrying the contacts is a stationary cylindrical surface (A), the movable surface executing a rotary movement is pivotably arranged on a structure (D) which is rotated by means of a motor shaft ( B) is offset, which is coaxial with the stationary surface (A), part of the movable surface _{carries teeth (R 1} ) on its circumference, which cooperate in the form of a gear with a _{ring gear (A 1} ), which is inside the stationary surface is located. 109815/0386 -2- .3. Rotary contactor according to Claim 2, characterized in that the components (O ₁ to G ₄ ) are conductive components which are connected to the movable surface via arms, these elements being an electrical connection between at least two (6.7)
Terminals / can produce, which are arranged at one point (.F ₁ , P ₂ ), namely a same point of the path of these elements corresponding 4. Rotary contactor according to claim 2, characterized in that the stationary surface carries at least one flexible lamella (L ₁ ) in contact with a first electrical connection terminal LQ _6. ) , This flexible lamella (L ₁ ) through the components (O ₁ to O ₄ ) the stationary surface (A) can be displaced so as to be brought into contact with a second connection terminal (7) and then, due to the elasticity, is brought back into contact with the first connection terminal (6) as soon as the pressure is removed. 5. Rotary contactor according to claim 4 »characterized in that the outer ends of the lamellae (L ₁ ) and the terminals (6,7) are arranged in a cavity (R ₁ ) of the fixed structure (A) and partially isolated by the movable surface are. 6. Rotary contactor according to claim 2, characterized in that the stationary structure (A) carries at least one contact of known type, such as a control button (f) which is arranged at a reversal point (a _o , a ₄ ) of the path of the component of the movable surface is" 109815/0386 TfS L ^ . B 4 tfr. ^ 2/67 V