DE1920784A1 - Slide switch for devices with a conductor network carried by an insulating plate - Google Patents

Description

SEL CONTACT COMPONENTS 19207 84

GMBH.

Nuremberg

Foundry Street 3

Gases: H.E.J.Kroll - R.J. Falkner 7-1

Slide switch for devices with a conductor network supported by an insulating plate

The invention relates to a slide switch for installation in a printed circuit, in which the stationary Contact parts components of the printed circuit or held by the printed circuit board and the ) be * .ve equal η contact parts from an 'insulating slide are worn. There is a particular need for such slide switches in radio, tape recorders and dictation machines. An example is the waveband switch of radios to be mentioned ^

D With known slide switches]! the fixed contact parts are formed by possibly reinforced parts of the conductor network of the printed circuit (German utility model 1 745 205). In other known slide switches, the stationary contact parts are held by the printed circuit board; They have, for example, the "shape of round pins that are pressed or hammered into the printed circuit (German Auslegeschrift 1 121 163). In known cases (German Auslegeschrift 1 229 167), resilient ones serve as moving contact parts. Continuous bridges, rl i o are carried by a Kontuktnschiebor guided on the circuit board.A disadvantage of this known Sohmltor is that their space requirement is relatively large.

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H.E.J.Kroll - R.J. Falkner 7-1

A particularly flat and space-consuming construction is obtained when used as movable contact parts Contact springs attached to the circuit board and connected to the conductor network are used, which are held in a recess by one The insulating material slide guided by the printed circuit board can be operated (German utility model 1 840 481). In this case, however, it is to be regarded as a disadvantage that contact spring groups are used to produce the movable contact parts attached to the printed circuit board, e.g. riveted, and conductive to the printed circuit board need to be connected. In addition, there are electrical disadvantages due to the fact that the slide between the moving contact parts will wear out and the contacts will be smeared. In addition, is the well-known slide switch, for versatile switching tasks, such as those that occur in program controls, not suitable.

It is known to produce a variety of switching functions several independently functioning single sliding containers to a multiple switch by analogous To be put together one behind the other (German Auslegeschrift 1 245 475); .However, the well-known design features are Not suitable for the construction of slide switches or multiple switches for devices with a printed circuit.

'5 It is the object of the invention to provide a slide switch in particular to create a flat construction, in particular as an independently functional unit of a multiple switch can be built into a printed circuit. This task is solved with a slide switch of the type mentioned at the outset according to the invention in that the slide is inherently well-known. Way in a slot of the plate slidably arranged and on

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H.E.J.Kroll - R.J. Falkner 7-1

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. one of its ends is provided with at least one resilient latching arm which slides along the plate when the switch is actuated and which engages in recesses in the plate in the switch positions. Since the insulating slide is arranged displaceably in the plane of the insulating plate, there is a particularly low overall height for the slide switch according to the invention. However, smearing of the contacts when the slide is pushed into the recess of the plate cannot occur, since the movable contact parts are carried by the slide.

In the slide switch according to the invention, the problem of the East position is particularly easily solved by am Slider is provided a latching arm which can be snapped into recesses in the insulating material plate. This locking arm is at a preferred embodiment of the invention in two parts and consists of two equally long, molded onto the slide, above and below when actuated parts that slide along the plate and can be snapped together in the switching positions in recesses of the plate. In itself, the arrangement of a one-piece locking arm would be with regard to the security of the locking setting suffice. However, with a one-piece locking arm, a certain tilting and thus jamming of the contact slide could occur enter. In contrast, the latching pressures of the two equally long parts of a two-part latching arm are lifted with respect to the load on the slide when the two parts are exactly mirror images of each other, that is, symmetrically are arranged. This also results in a certain mechanical relief of the printed circuit board, the strength of which is usually not too high Claims can be made.

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H.E.J.Kroll - R.J. Falkner 7-1

Also the problem of guiding the slide on the insulating plate can be solved in a particularly simple way with the slide switch according to the invention, by guiding the switch on opposite edges of the plate slot. This can be done in accordance with further training the invention be formed on the slide at least two opposing resilient tongues that reach through the plate slot with barb-like noses

O slide along the slot. Such a snap fit the slide enables a particularly simple assembly of the slide switch on the printed circuit board.

So that the slide cannot be operated beyond the intended locking positions during switching movements, are in an advantageous embodiment of the invention two pairs of such opposing spring tongues are provided on the slide in the direction of actuation? she can at the same time form the two end stops to limit the switching movement in both directions.

In order to ensure the implementation of the most varied of switching tasks, according to a further proposal of the invention the slide switch designed such that it can be used both individually and in groups.

This is done in that the slide is provided with a recess at its end facing away from the Rastarin, into which the locking arm of a wider, behind arranged slide of the same shape to form a non-positive Connection of both slides can be locked. As a result, the locking arm arranged on the slide not only fulfills the requirements Latching function, but also acts as a connecting element between two slides. In particular

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several slides arranged one behind the other can also be connected to one another in a non-positive manner in this way. For this purpose, each slide has a recess into which, when the individual slides are lined up one behind the other, the locking

■ the arm of the following slide engages and so does the switching movement transfers directly to the next slider. Thus, easily producible, independently functioning single slide switch a multiple switch through modular assembly

Can be created. The production price of such a multiple switch is therefore extremely low, especially the previous often quite complicated and expensive special designs are no longer necessary.

Further features and advantages of the invention result from the following description of the exemplary embodiments shown in the drawing. Show it:

FIG. 1 shows a view of a slide switch according to the invention;

FIG. 2 is a side view of this slide switch still being installed in a printed circuit board;

FIG. 3 in a sectional view one in a printed one Circuit board built-in multiple switches made up of two slide switches lined up one behind the other type shown in Figures 1 and 2; Figures 4 and 5 in sectional view and in plan view one suitable for installing a slide switch or a multiple switch according to the invention printed circuit board; . _

Figure 6 shows a section along the cutting line / the slide switch shown in Figure, but after Installation in a printed circuit board.

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1 with the printed circuit board is referred to, on which the stationary contact ^{parts 2, 2 ', 2 11 of} the slide switch are located as possibly reinforced components of the printed circuit. Contact springs 3 _? which are mechanically connected to the slide 4, 5 and slide on the stationary contact parts 2, 2 ', 2' ¹ when the switch is actuated

) securely attached. You can therefore electrically connect the stationary contact parts 2 to 2 'in one switching position of the slide 4, 5 and the contact ^{parts 2 to 2' 1} in the other position and thus effect a switchover ο

In order to ensure a space-saving structure, the slide 4, 5 is arranged displaceably in a slot 6 in the insulating plate 1. The guidance of the slide 4, 5 takes place on opposite edges of the plate slot 6 "For this purpose, 'serve on the slide 4, 5 molded spring tongues 7, 7' ° The apparent from Figure 6 embodiment, such a spring tongues are a total of four used, each two of which transverse to the Operating direction are arranged. At their free end, the spring tongues 7, 7 'have a barb-like nose 8 and 8 ^1, respectively, which grips through the plate slot 6 and slides along an edge of the slot during the switching movement. The insertion of the slide 4, 5 into the insulating plate 1 is done in a simple manner by pressing into the plate slot 6. The resilient tongues 7, 7 'of the slide 4, 5 spread open again after the back and prevent with their barbs 0, 8' falling out of the printed circuit board 1. At the same time, the resilient tongues 7, 7 'act as an end stop to limit the switching movement to one side. The other end stop is formed by the connecting web 12 or 12 'of the Rastarmteile 9', 9 ^'1 and 10 ·, 10''.

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H.E.J.Kroll - R.J. Falkner 7-1

To achieve defined switching positions, the slide 4 »5 is provided with an integrally formed resilient latching arm 9 or 10, which slides along the plate 1 when the switch is actuated and can latch into recesses 11, 11 'of the plate in the switching positions. With regard to the loading of the slide 4, 5 and the printed circuit board 1, it is expedient to design the locking arm 9 »10 in two parts, for example in the form of a pair of pliers. In this embodiment, both parts 9 ', 9 ¹¹ and 10 ¹ , 10''of the latching arm 9, 10 can slide along above and below the plate 1 when the switch is actuated and, in the switching positions, snap together into the recesses 11, 11' of the plate. To produce stable switching positions on the one hand and to reduce the sliding friction when actuated on the other hand, the two parts 9 ¹ , 9 ^SI and 10 ', 10''of the locking arm 9 »10 each have a semicircular, the locking recesses 11, 11' of the Plate 1 adapted locking lugs 9 " ¹ » 9 ^i1fl or, 10 '··, 10 "",

The resilient parts 9 ', 9 ^I! or 10 ', 10 "of the locking arm 9, 10 serve at the same time to produce a non-positive connection with a second slide 5 of the same shape, for example arranged behind the slide Engage the adapted recess 4 'of the slide 4. In this way, the multiple switch, which can be seen in FIG. 3 and is made up of two individual slide switches 4 and 5 arranged one behind the other, is created. Its structural parts are hatched with different densities for better identification. Since the slide 5 in turn has a recess 5 * suitable for engaging a latching arm, it is possible to positively connect several slides arranged one behind the other in a non-positive manner

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H.E.J.Kroll - R.J. Falkner 7-1

of the individual slide the locking arm of the following slide in the recess of the preceding slide intervenes and so the Sehaltbewegung directly on the next slider is transferred.

To actuate the spool 4, 5 of the composite bzw- slide 4 and 5 is an integrally formed on the slider connecting eyelet 4 ^s' and 5 ^lf "can absorb the a corresponding actuator. If several slides 4, 5 _S ··· in a row are used, a single actuating element is sufficient; it is sufficient if the slide effecting the latching, for example the one labeled 4, is provided with a corresponding actuating member on the connection eyelet 4 ″.

A slide switch or multiple switch according to the invention can be used in conjunction with a printed circuit for a wide variety of switching tasks. The manufacturing and assembly effort required for this is extremely low. Thus, the insulating plate carrying the conductor network only needs to be provided with stationary contact parts 2, 2, 2 ¹¹ , a slot 6 for receiving the slide 4, 5 and locking recesses 11, 11 'for engaging the locking arm 9-10 the side of the insulating material plate facing away from the stationary contact parts is fitted with the conductor tracks for wiring the other components. This makes it possible, by appropriately designing the printed circuit board, to carry out a large number of switching operations, for example switchovers. This also eliminates the usual wiring work. Furthermore, special means for fastening the slide on the printed circuit board and for

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mutual coupling of several slides, as these through Snap into the printed circuit board or fastened by mutual snapping of their locking arms be coupled. As a result, the slide switch or the one made up of individual slide switches is already in place Keh.rfachscha.lter operational; it engages reliably in the two end positions and is against further Moving by stops that are held by the fastening tongues 71 7 'bz //. Connecting webs 12, 12 'are formed, secured-

System:

10 claims
2 Bl drawings
1 sheet. List of terms used

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Claims (10)

19207 H.E.J.Kroll - E.J. Falkner 7-1 - Patent claims (1)) Slide switch for installation in a printed circuit, V 'in which the stationary Kentakt parts are components of the printed Circuit or held by the printed circuit board and the movable Koataktteile by one Isolating slide are carried, characterized in that that the Selaleibejr (4, 5) in an is known V / eise in a slot (6) of the plate (1) and slidably arranged at one of its ends with at least a springy one, when actuated along the Sliding plate and fiastarm (9-10) that latches in the recesses (11, 11 ') of the plate in the switching positions is provided. 2.) Slide switch according to claim 1, characterized in that the latching arm (9, 10) consists of two on the veil (4, 5) formed, when switching operation above and below the plate (1) along sliding and in the holding positions together in recesses (11 , 11 ') of the plate consists of snap-in parts (9 ¹ , 9 "; 10 · 10"). J>.) Slide switch according to claim 1 or 2, characterized in that the latching arm (9 »10) has at least one essentially semicircular latching nose (9 ^fl! » 9 "adapted to the latching openings (11, 11 ') of the plate (1). » ¹ »; 10 "', 10""). 4.) Slide switch according to one of claims t to 3, characterized in that the slide (4, 5) at its end facing away from the latching arm (9, 10) has a recess (4 ¹ , 5 ') into which the latching arm of a second, behind arranged slide of the same shape to form a non-positive connection of the two slides can be snapped. - 2 - 009845/0894 HEJKroll - HJFalkner 7-1 -Jt- 5 ·) Slide switch according to claim 4 _S, characterized in that a plurality of slides (4, 5, ···) arranged one behind the other are positively connected to one another in the form that each slide has a locking arm (9t 10 »···) and at the other end has a recess (4 ', 5't ···) into which the locking arm of the following slide engages when the individual veils are lined up one behind the other and the holding movement is thus transmitted directly to the next following slide. 6.) Slide switch according to one or more of the claims 1 to 5, characterized in that the slide (4, 5) is guided on opposite edges of the plate slot (6). 7.) Slide switch according to claim 6, characterized in that at least two spring tongues (7, 7 ') arranged transversely to the actuation direction are formed on the slide (4, 5), which have barb-like noses (8, 8 ¹ ; 8 ^J ') , 8 '''J through the plate slot (6) and slide along the edges of the plate slot when you switch. 8.) Slide switch according to claim 7, characterized in that the spring tongues (7 _t 7 ¹ ) form an end stop for limiting the scarf t movement in one direction. 9 ·) Slide switch according to claim 7 or 8, characterized in that the slide (4, 5) has two pairs of opposing resilient tongues (7, 7 ') in the actuating direction. 10.) Slide switch according to one or more of claims 1 to 9, characterized in that the slide (4, 5) is provided with a molded connection eyelet (4 ¹¹ , 5 ' ¹ ) for receiving a correspondingly designed actuator. Kb / b - April 16, 1969 Ö09845 / 0894