DE1640798B1 - Electric switch for several circuits - Google Patents

Description

3 4

a part of the grooves is a fixed contact, whereby we- The switch housing 10 is in the fastening at least Electrically tighten one of the contacts from the other surface 13 with the aid of a screw nut 14 is isolated and keep the contacts different. A retaining pin 15 in the housing 10 can be in a Have lengths relative to the length of the groove; the corresponding recess or opening 16 in the Movable contacts consist of leaf springs that are inserted in the 5 circuit board or in the mounting surface 13 the grooves are set displaceably in the axial direction, which receives the pin 15 and prevents and it is in contact with the fixed contacts that the switch is in the circuit board 13 can be brought. turns.

Preferably three movable contacts are elec- A plastic insulating cylinder 17 with an upper one

trically connected to each other and two associated io part 18 and a lower part 19 is in the housing

Fixed contacts are used differently from the third 10 and isolate the latter from the inner ones

long trained. Components of the switch. On the inner surface

In a further embodiment of the invention, the upper part 18 of the insulating cylinder 17 is in front of 20

beaten that the cylindrical, chamber-like up- inwardly protruding, axially extending guides

construction of the movable contacts two circular 15 21 rectangular cross-sectional area provided.

Has disks made of insulating material, while an In F i g. 1 is only one of the tours 21 in exaggerated

Disk pins moved into holes in the other lower perspective view in the exposed

Disc protrude, the contact elements cut part of the upper part 18 of the cylinder

are held by parts having holes shown by 17, but there are three such guides 21

which the pins protrude through, the parts between 20 present, as shown in FIG. 3 reveals. As shown

The lower ends of the guides 21 are arranged between the discs and which is the position

Washers beveled together with the help of a centric rivet so that they align with the cam surfaces

are connected so that each of the contact elements of the in the manner described below together

first sentence with respect to the two disks.

is stuck. In this case, the three components preferably form. In the insulating cylinder 17 is a piston drive cylinder Contacts a one-piece unit that is provided between 22. The drive cylinder 22 has see the two discs and firmly in one position - an upper cap 23 and one from there close off is, in which it stands up from the other contacts towards the guide pins 24. The celebrities remains isolated, which is also between the rungsbolzen 24 has a smaller diameter than both discs are clamped. 30 the cap 23. The cap 23 is inside the upper

With the proposal according to the invention, a part 18 of the insulating cylinder 17 is slidably arranged reliable and compact arrangement achieved, which and has a flange 27 that the bolt 24 of enables the designer to disconnect the cap 23 circuit. At the periphery of the flange 27 Provide combinations that are formed by known recesses 25 so that they Orders cannot be achieved. Furthermore, 35 guides 21 of the cylindrical upper part 18 of the In the switch according to the invention, the disadvantage of the cylinder 17 is included. There are three grooves 25 misunderstood Arrangements avoided after each seen, only one of which is shown in FIG. 3. Of the Group of interacting Kon-drive cylinder 22 is thus slidably within the clock elements have two contact points, which wear the upper part 18 of the cylinder 17 along the guide, Corrosion, arcing, etc. attached to 21 but cannot rotate because are subject to. Also in the case of the invention, the recesses 25 will receive the guides 21, A cam actuator 28 with three downward star requirements necessary than is the case with existing fingers 29 and a central opening 30 in the case of known switches corresponding type is the case. set over the guide pin 24 and lies on

The invention is described below in connection 45 with flange 27 of piston 22. Near the fin

with the drawing on the basis of an exemplary embodiment 29 are three recesses 26 in the cam actuator

game described. This embodiment shows ger 28 provided, each of which is one of the guides 21

only one embodiment of the invention and accommodates, whereby a sliding movement of the actuating

is not intended to limit the invention in any way. It enables a rotary movement of the actuator

shows 50 is prevented. As a result, both slide

Fig. 1 partially broken away and partially in the drive cylinder 22 and the actuator 28 in

Cross-section the view of a switch after the earth guides 21 up and down.

finding, a spring 31, which over the guide pin 24

F i g. 2 a schematic representation of the contact is set and with the lower end against the subsequent

arrangement of a switch according to the invention with 55 standing contact arrangement is present,

the different positions, pushes against the cam actuator 28 and moves it

Fig. 3 in an exploded view an upward against the flange 27 of the piston drive

View of the components of the switch, cylinder 22.

F i g. 4 is an overall external view of a switch. A leaf spring contact arrangement 32 consists of

similar to that of FIG. 1 on a smaller scale and 60 two circular disks 33, 34, between wel-

with a typical socket connector, and at least one, but preferably several con-

5 shows a cross-sectional view of the lamp part when clock elements 35 are clamped, e.g. riveted,

a switch according to the invention. as in the cut-out part 36 (FIG. 3) of the

In the figures and in particular in FIG. 1, an arrangement 32 is shown. A pin 39 holds each

Holder housing 10 made of metal with one with 65 of the contact elements 35 with the lower disk 34

Screw-threaded collar 11 together on the neck part.

12 of the housing for insertion into a circuit board In the cut-out part 36 is the sheet or another mounting surface 13 is provided. spring arrangement as a common group 35 of three

5 6

Contact elements shown. However, it can record any momentary, as explained below Contact combination of two or more contact elements.

ments, such as B. the designated 35, provided The slots 65, the inclined surfaces 66 and the

be, no matter which interconnection in approaches 66 a of the inclined surfaces act with the a switch according to the invention is desired. The 5 fingers 29 of the cam actuator 28 and the Fühgenaue The method of operation will be summarized below in the following way.

tert. The cam actuator 28 is driven by the cam 50

The arrangement of upper and lower disks away and towards them raised and lowered, in-33, 34 over the leaf spring groups 35, an eyelet bearing 37 is held together by an alternating pressure on the push button, which is in a 100 and thus on the piston drive cylinder 22 Position is shown before being exercised over the upper portion 38. The fingers 29 rest on the inclined (exploded view according to FIG. 3) ver surfaces 66 and rotate the cam 50 in order to be braced. The inner wall of the opening 40 forms a small angle until it is held by lugs 66 a and through the eyelet bearing 37, the bearing surface for the, whereby the spring 31 together-guide pins 24, 15 is pressed. This is the position of the arrangement

The base or flange surface 31 of the eyelet 37 rests according to FIG. 1.

on the spring 42, which via the guide pin 24 When the pressure on the push button 100 is removed

is set. is taken, the spring 31 expands and the

An annular cam 50 sits on the upper cam actuator 28 with the fingers 29 moving disc 33 of the leaf spring contact assembly 32 on, 20 upwards. This upward movement causes the pin 24 to move through the cam so that the finger 29 stretches the projection 66 α from the guide. The cam is thus attached so that it separates 21 (not shown in Fig. 1); the Nockenbeleer can move around the axis of the arrangement, activity between the guides 21 and the oblique when it is actuated accordingly. In addition, the gene surfaces 66 is initiated when the spring 42 presses cams in the axial direction between two end positions 25, the contact arrangement 32 and thus the cams 50 hung displaceably and in this axial movement follows upwards. The cam 50 rotates like the contact assembly 32 as the cam rotates slightly in turn, with the beveled lower Kandie assembly 32 and the cam being pushed by the feet of the guides 21 up the inclined surface by one of the 42 and, upon actuation, the other slide downwards a small angle until the switches move downwards; the cam 30 three guides 21 assume the position that for 50 has three axially extending recess fingers 29 in FIG. 1 is shown. Here the grooves or slots, one of which is shown in FIG. 3 stopped with 65 movement by lugs 66 α , the cam is designated, and the three spiral rising has its lowest position with respect to the surfaces, for. B. 66, reached about the circumference of the cam 50 axial displacement, and this position will separate. A ring with three axially extending Schiit- 35 for the lower position 60 according to FIG. 2 b in combination 65 would fall apart and thereby form three parts that are further disconnected in connection with the contact arrangement. Accordingly, the ring has tert.

50 an inner cylinder 50 a (Figs. 3 and 5) with It is now assumed that on the other

smaller diameter, the cam, the ren, upper part 71 according to FIG. 2 a are made up of elements 50 and 50 a, intended as a one-piece 40 and this will be made according to the push button ar unit. The slots 65 with the beitsweise reached in such a way that the push-button inner ring 50 α can then be depressed and released again as an axial recess 100,
genes are considered, which form channels, which depending on the position 61 (Fig. 2 b)

Operation alternately the guides 21 or the guides 21, which by means of lugs 66 a, receive the fingers 29, as will be explained 45, the cams 50 in the corresponding one. lower position, the spring 42 together

The sloping surfaces 66 represent spiral presses. If now a pressure is on the Druclcformen extending surfaces, each button 100 is exerted, the fingers 29 of the slope are brought down by an upward extension of actuator 28 and meet at 66 a is divided, which ends in an edge, which 50 the upper edge of the approaches 66 a . The upper an upwardly displaced portion of the spiral edge of the lugs 66 a, which shows down to the right in a shaped inclined surface, as in Fig. 1, Fig. 1 shows, is also a cam surface and is shown. As shown, the width of each is a displaced part of the inclined surface 6 finger 29 and shoulder 66 α approximately the same. Thus, one is ensured as the lower part of satisfactory operation in continuation of the inclined surface, is 55 thereof, on the right side of the projection. Each lug 66 α against the lower side of it generates TEI A further pressure on the push button 100! Ends inclined surface, so that the higher, thus a two-stage cam effect, in which the here, wider side (against the left side in FIG Find the cam surfaces of the projections 66 α downwards 29 and one of the guides 21, offset with one another, slides inwards, onto the lower part of the inclined surface 66 which falls through recesses 25 and 26 and from there into the slot or which grip , the guides in Fig. 1 falling for the sake of recess 65. Since each finger has its axial sliding movement in the immediate vicinity of one of the fingers, in part omitted for simplicity of illustration. The lower continuation of an inclined surface stanchions 21 executes, the tracks for the recesses 66, which appears on the right side of the projection 66 a in 65 26 for guiding the actuator 28 with the fingers 29 Fig. 1, is shown so that it is about which form, each guide closely follows the adjacent width of a finger 29 or a guide 21 - fingers in the position with respect to the peripheral points, since in operation they only have one of them and these cams. When each finger 29 in the lower part

the inclined surface falls, the neighboring order 32 comes to its lower position 60, like the

Leadership thus in the position in which they approach F i g. 2 b shows.

facing. The cam or wedge effect is As shown in Fig. 5, the guide pin is

continued, and thus the fingers 29 fall in slots zen 24 on the spring 43, which in the middle opening 65, the guides 21 occupy their previous position 5 tion 44 of the carrier 45 for the fixed contacts, d. H. they hit the lower right side of the bet.

inclined surfaces 66 in Fig. 1. When the spring 42 is located in an annular groove 46 in the

Pressing the push button 100 again releases the carrier 45.

the spring 42 expands, pushes the cam. The circumference of the carrier 45 is provided with grooves.

50 upwards and the guides 21 continue to practice io hen, as at 47, 48, 49 in FIG. 3 shown. Within

the cam action with the lowermost part of each inclined groove running axially is a fixed contact

on surfaces 66 . Towards the end of the release 51, 52, 53 provided.

Step the fingers 29 further upwards. The group of fixed contacts 51, 52, 53 can be withdrawn and then enable another, best shown in FIG. 2 and shows the following small rotation of the cam 50. This results in an arrangement in the grooves: The fixed point 51 is that the guides 21 fall into the slots 65, while a short section near the upper part rend the spring 29 on the highest part of the left of the carrier 45; the fixed contact 52 is a contact side of the inclined surfaces 66 in FIG. 1 to the rest of the full length and the fixed contact 53 is a short contact. When this stage is reached, the cam contact in the vicinity of the lower part of the groove in the impregnation, and with it the entire contact arrangement, has the 20 ger45.

reached the top position, in which he was like the F i g. 2 b can be seen

being blocked by guides 21 in slots 65 when the contact finger arrangement 32 has an un-

is. When this state occurs, the contact takes up the lower position 60, the three fingers 35 on

arrangement their in Fig. 2a with 61 designated point of a common connection on the left

ment a. 25 page is shown, only in contact with the fixed contact

When the push button 100 is again a pressure 52 and 53 in the carrier 45.

is exerted downwards, the fin- When the three fingers 35 act on their upper position 61

ger 29 the lower cam 50, because they occupy the left, (Fig. 2a), the fingers 35 are in contact

engage wider side of the inclined surfaces and in with the fixed contact 51 and the fixed contact 52 in the

slide down the position shown in Fig. 1, so 30 carrier 45, but not in contact with the fixed component

that it clocks 53 a further slight rotation of the cam 50.

cause; This leads to a subsequent removal. In this example, the three fingers are common the pressure on the push button 100 to the same contact group 35 a unipolar changeover intermediate position According to FIG. 1, a continued disconnection combination is provided.

would allow the guides 21 to 35 It can have any number of contact combination positions take, in which the fingers 29 in FIG. 1 nations, e.g. B. denoted by 35, in a liege shows are. used combination of arrangements

Although the foregoing description is a study. For example, a single pole mode is used Illustrates the explanation of the operation, actuation achieved when the contacts 35 go two from the fact that every time the 40 fingers are arranged or grouped. With a Push button pressed down and released again- pair of groupings 35 with three fingers is a ben, the electrical contact arrangement between double-pole changeover switches is possible, with two one and the other of two positions used in groupings of fixed contacts 51,52,53 F i g. 2 a and 2 b are shown, is switched. be det. There are a multitude of other combos each the steps of depressing the push button 45 of contact fingers (moving contacts) fes 100 and the release causes a rotation of the and Festköntakten on the carrier 45. When the cam 50, which are referred to as idle rotation, increases the number of combinations in the arrangement can because the cam, although it decreases by the or, this also applies to the diameter Cam action is driven for rotation of assembly 32 and carrier 45. For example no further element drives, which can rotate with it 50, the contacts multipolar interrupter-sequence target. The two stable end positions are contacted or make follow-up contacts or others is enough if the guides 21 either be through the contact forms.

Slots 65 (upper position 61, FIG. 2 a) are occupied. The carrier 45 is mounted on a head assembly 55

or if they are stopped by lugs 66 α , with a plurality of pins 56, which are from the arrangement

d. that is, when the position is reached in which the fingers 55 position 55 downward are recorded. There are

29 in FIG. 1 (lower position 62, there are as many pins 56 on the head part 55 as

F i g. 2 B). Contact receiving grooves in the carrier 45.

When the guides 21 are in slots 65 of the nok- A socket outlet 57 (Fig. 4) is considered separate

kens 50 are arranged, the adjacent units are for mounting in a chassis or in

Parts of the inclined surface on fingers 29, which 60 provided a similar arrangement so that the

then a stop for a further upward movement pins 56 of the head part 55 can be added

Formation of the cam, and the contact arrangement can.

32 assumes its upper position 61, as shown in Fig. 2a The socket 57 can produce such a design, consider that they can be used in printed circuit boards

When the guides 21 are against the wider parts 65, the switches according to the invention are in rows

the inclined surfaces 66 of the cam 50 can be arranged in contact with such switches,

and against a further shift due to the used in printed circuit boards

Sentences 66 a are stopped, takes the contact. The socket 57 can also have blade contacts

9 10

have so that they are inserted in a simple manner on the line the bolts so that they close the bolt 24

arrangements is connectable. gene elements isolated inside. The sleeve 70 has

The operation of the switch according to the invention has a flange 69 which the lower part 80 of the

is as follows: guide pin 24 from flange 81 of the pin

The insulating contact base 45 has metallic 5 separates within the insulating sleeve 70 and against it

Fixed contacts 51, 52, 53 within grooves 47, 48, isolated. The lamp circuit spring 72 separates one

49 on. Through connecting lines 59 (FIG. 1) contact pin 71 with an enlarged end part 83

the fixed contacts 51, 52, 53 with connection pin from the pin 73 and pushes the pin 71 upwards

th 56 in the head part 55 connected. away from the pin 73. The spring 72 results in an elec-

The contact arrangement 32 is an Irish connection between the pins 71 via the carrier 45

movable. The movable contacts 35 of the terminals and 73.

Order 32 have the shape of a circular like the F i g. 5 can be seen, the

Comb up. The contacts 35 in different lamps 74, which have a base 75 and a center con

Combinations with the fixed contacts 51, 52, 53 under 76, which is connected from the base 75 through the insulator 77

Different lengths in the grooves 47, 48, 49 in the 15 separates, has, inserted into a container 78

Carriers 45 make certain connections in one place and held there in place. Within the

Upper position 61 and different connections. Cap 23 of the piston drive cylinder 22 is the

gen in a lower position 60. For example, lamp holder 78 is made with resilient extensions

in the position 61 the connection between the fixed 79 is provided with recesses 26 in the cap

contacts 51 and 52 cooperate through the movable contacts 20 23. The push button cover 100

35 closed. In the position 60 the connection is also connected to the container 78,

connection between the fixed contacts 52 and 53 through the middle lamp connection 76 results in a connection

the movable contacts 35 closed. clock via the pin 71, the flange 83, the spring 72,

The contact arrangement 32 is in a normal pin 73 and the spring 43 with the connecting pin

wise upper position 61 held by the spring 42 25 85 in the support 45. The side connection 75 of the lamp

th, which is between the lower part 41 of the eyelet 37 of 74 is in electrical contact with the cap 23,

Arrangement 32 and the carrier 45 (F i g. 5) used which in turn are in contact with the spring 31 via a

is. If the angular position of the cam 50 is so, cam actuator 28 and an eyelet 37 which

that guides 21 lie in slots 65 of the cam through their flange 41 via an external spring 42 the

gen, the assembly 32 in its upper position 30 becomes an electrical acoustic connection to the connecting pin 84

61 held. closes. The insulating sleeve 70 with its flange 69,

The cam 50 and the cam actuator 28 with which the piston 24 separates from the pins 71 and 73, the pins 29 which slide on the inclined surfaces 66 in FIG. 5 is omitted, in FIG. 3, however, form a mechanism which, for the sake of simplicity, has a certain similarity to the drawing with arrangements with which the representation occurs, and an alternating upward and downward movement must be observed that the elements 71, 83, 72, 73 and 81, the axial components are reached, as they are drawn in ball point in contact with the piston 24, in zen springs for raising and lowering the writing-reality are electrically isolated from it,
Thus, the lamp circuit connections 84, actuations of a bulb can be used as a function of successive point. 40 85 through some of the pin connections 56 to external

A brief contact actuation can thereby be connected feed lines so that they

be achieved that the elements 66 α or all EIe- when one or the other position of the

elements 28, 31 and 50 can be omitted. Contact arrangement 32 (position 60 or 61) energized

In the F i g. 3 and 5 is a detailed view of the part of the push-button switch 45 which actuates the circuit to the lamp 74 and the closing lamp, the lamp lighting up in a partial cross-sectional function for the desired display according to the invention,
shows. The circuit arrangements can be possible

The carrier 45 is insulating and rigid, usually an interrupt lamp circuit Order of the switch attached. A middle one is included in which the guide pin 24 is bored out in this way 44 is provided, in which the spring 43 can be incorporated, so that it sets the circuit of the center is. About the spring 43 of the head or flange contact 76 closes so that the lamp 74 only on -81 a pin 73 is arranged. The guide pin lights up when the push button 100 has been pressed 24 is hollow and an insulating sleeve 70 is in FIG.

1 sheet of drawings

Claims (4)

In terms of rotary switches, there is a relative movement between patent claims: rotor and stator in the direction of the switch axis are not provided and are subject to special precautions 1.Electric switch for several current- prevented, so that only a relative rotation circle, with two switching positions, in which there is a 5 movement between the rotatable and the fixed an actuating mechanism cylindrical by part becomes possible. an actuating axis arranged movable It is also an electric push-button switch Contacts axially against fixed pins also arranged are known (British patent 713 383), with welkontakte are moved, indicated by only one contact pair at a time the combination of the following can be used per se. The two knew each other Features: outgoing contacts of each such contact pair a) a cylindrical support (45) for the fixed res are actuated via a control member; the working contacts (51, 52, 53) has on its outer way such a switch corresponds to that of a Shell surface in the axial direction a multi-starter switch or a cam-actuated tax number of grooves (47, 48, 49) on; 15 switch, whereby only the contact itself b) in each or a part of the grooves a is effected by switching on the push buttons. Fixed contact (51, 52, 53), with at least one simultaneous actuation of two or more one of the contacts electrical from the other contact pairs is not possible here. Ren is isolated and the contacts are different. Furthermore, there is a multiple contact switching arrangement borrowed lengths with respect to the groove length 20 known (US Pat. No. 2,814,680), in which the exhibit; Contact elements of each set in cylindrical c) the movable contacts consist of form and arranged the contact elements of the one Leaf springs (32, 35) which set against the grooves with respect to the contact elements of the other (45) are axially displaceable, the sets are displaced in the axial direction relative to one another. and are slidable in contact with the fixed contacts 25. In such a known are bringable. Switches are either closed circuits 2. Electrical switch according to claim 1, there or opened when the push button is depressed characterized in that three movable Kon- becomes; the opposite effect occurs when the take are electrically connected to each other and the push button is released. Each group of two of the associated fixed contacts opposite 30 interacting contact elements the third are of different lengths. has two contact points, the electrical 3. Switch according to claim 1, characterized in contact arrangements inherent disadvantages draws that the cylindrical, comb-like cover on wear, corrosion, arcing construction of the moving contacts have two circular etc. Having disks (33, 34) made of insulating material, 35 In addition, it is basically also known while a disc (34) moves pins (39), the electrical switches, e.g. B. Push button switch, with protrude into holes in the other disk (33), contacts in quiescent current and those in working being the contact elements (35) are to be preferred by parts current circuit (e.g. hold German patent are that have holes through which the writing 676 420). Here, a first sentence of Pins protrude through, the parts between 40 contacts on contact elements, which are so arranged the disks are arranged, and which are that they make contact exclusively with corresponding disks to each other with the help of a centric result only if the elements of the second sentence Rivet (37) are connected, so that each of the con - the elements of the second set is one of the two vertical elements (35) of the first set take on different switching positions, and the first the two discs (33, 34) is clamped. * 5 set of contact elements has other contacts 4. Switch according to claim 2 and 3, characterized in that they are arranged in such a way that the contact is characterized in that the three movable cones with corresponding elements of the two-stroke cycle finally form a one-piece unit (35) which only result in the second sentence when the elements of the two the two disks (33, 34) and in a th sentence assume the second switching position.
Is clamped position in which it remains isolated from the object of the present invention is an electrical whose contact elements (35), push-button switch for several circuits for which also between the two disks production of series connections, which are com-clamped. compact in structure and reliable in operation which a switching operation can only be carried out when the push button is depressed, see above that a release of the push button no change of the switching state results, and in which the disadvantage of known switches is avoided that the stationary The invention relates to electrical switches Ren contact elements are provided in pairs for several circuits, with two switch positions, 60 must, so that a bridging contact between two adjacent contact elements arranged by means of an actuating mechanism when actuated axially arranged around an actuating axis of the switch are used can,
movable contacts axially against likewise arranged according to the invention are in an electrical Fixed contacts are moved. Switch for several circuits, as it was initially There are already electrical switches, so-called 65 is written, the following features at the same time pre-rotary switch known where the contact elements see: a cylindrical support for the fixed contacts of each set arranged in a cylindrical shape has on its outer circumferential surface in the axial direction (German interpretation document 1039 602). In this way, a plurality of grooves; in each or