WO2012055549A1

WO2012055549A1 - Locking device for adjusting element

Info

Publication number: WO2012055549A1
Application number: PCT/EP2011/005397
Authority: WO
Inventors: Markus Becker; Rainer Gockel; Daniel Klein
Original assignee: Phoenix Contact Gmbh & Co. Kg
Priority date: 2010-10-27
Filing date: 2011-10-26
Publication date: 2012-05-03
Also published as: EP2633536A1; EP2633536B1; DE102010049476A1; EP2447973B1; EP2447973A1

Abstract

The invention relates to a device for locking an adjusting element (5) mounted on a printed circuit board (1) extending in an x and/or y direction, in particular an electrical addressing device, wherein the device comprises an essentially plane base plate (2) having a length (L), a width (B), and a thickness (D), to which a first locking spring (4) is attached for the locking engagement with marking means (23, 23') of the adjustment element (5), which preferably has an oblong spring leg (7), wherein in an installed state, the base plate (2) is mounted on the printed circuit board (1).

Description

Locking device for adjusting means

Description :

The invention relates to a latching device of adjusting means, in particular adjusting means for electrical components, which are arranged on electrical boards or electrical circuit boards,

preferably of electrical addressing devices, in particular according to the patent application WO2010 / 054854 AI or the patent application DE 10 2010 049 476.3, whose priority is claimed.

Adjusting means for adjustable electrical components of the generic type, for example, suitable for manual adjustment of electrical resistance potentiometers, rotary potentiometers or variable capacitors, the

Modification of electrical characteristics of electrical circuitry are commonly used as

Dials, knurling wheels, rotary switches, levers,

mechanical switches, push buttons, sliding switches or

the like.

Adjustment means for addressing devices according to the patent applications listed above are used primarily for adjusting the addressing of bus subscribers in

Data transmission systems or electrical

Consumers in switching or control systems, e.g. also with wireless modules, used. Such adjusting means are usually installed in externally accessible module elements of these systems to an adjustment of the address

CONFIRMATION COPY enable. The address setting takes place here

usually by means of rotary encoder or dip, or

Sliding switches, which are accommodated on circuit boards. To set the address code of the address to be set is usually a mark of a digit or a number of digits with a e.g. as a knurling wheel

to select trained adjustment means, wherein in the case of rotary coding switches usually a decimal or

Hexadecimal number is set.

Adjusting means, in particular of electrical

Addressing devices are predominantly with a

Detent means or a locking mechanism provided so that a user, the position of the adjusting means or a

Precise setting and / or fixing of address code.

The document WO2010 / 054854 AI describes a

Latching to an electrical terminal module having an addressing function which is an electrical,

adjustable component on a circuit board with a knurled wheel arranged above it as adjusting, for manual setting of an address code having. For locking the knurl wheel with a locking means is on the circuit board, a cylindrical, protruding

Attachment means mounted, which can engage in holes in the side surface of the knurl wheel.

In such form-locking locking a precise locking can be difficult, especially when the adjustment is moved very quickly, so that the cylindrical engagement means can not engage sufficiently fast in the holes of the adjustment. Furthermore, a particularly high manufacturing precision is necessary for the reliable, precise address setting with such a positive locking, in particular concerning the mounting of the adjusting means and the component tolerances.

The invention is therefore based on the object to provide against the background of the cited prior art, an improved device for locking, in particular for electrical addressing devices. Furthermore, such a device should be easy and cheap to install and secure.

The object is achieved by a latching device with the features of the main claim 1.

Advantageous and / or preferred embodiments and further developments are the subject of the dependent claims. Main advantages of the invention and the individual

Accordingly, embodiments or developments are based on the fact that the device has a precise and

has reliable locking of the adjusting. Furthermore, the device according to the invention allows a low construction height of a printed circuit board

attached adjustment means and a quick and easy accessibility of the components, which opens up the possibilities of easy replacement and improved

Installation result. Furthermore avoids the

Locking device according to the invention a one-sided

Pressure load of the adjusting means and thus allows a constant load on the adjusting means. The object of the invention is accordingly achieved by a latching device for latching a

Adjusting means, which at one, in an x and y direction, hereinafter and in the claims also referred to as xy direction extending, extending circuit board, in particular an adjusting means of an electrical addressing device, wherein the latching device has a substantially planar base plate with a Length, a width and a thickness, at which, for latching engagement with marking means of the

Adjusting means, a first detent spring is mounted, which preferably has an elongated spring leg, wherein in the assembled state, the base plate is attached to the circuit board.

The extending in the x-y direction printed circuit board or circuit board has an electrical circuit arrangement with at least one electrical, adjustable component, such as a rotary potentiometer or a

Rotary capacitor, on which the adjustment of a

electrical size by means of an adjustment

allows. According to the invention the adjusting means with a

Locked device which comprises a substantially planar base plate having a thickness which extends in a length and a width, wherein the extension of the

Base plate does not necessarily have to be rectangular, but may have any geometry. Furthermore, according to the invention, a first detent spring is attached to the base plate, which preferably has a

having elongated spring legs, preferably in the form of a rectangular leaf spring. In a preferred embodiment of the invention, the first detent spring is designed as a sheet metal spring.

In a further preferred embodiment of the invention, a complementary to the marking means is formed on the first detent spring for locking engagement

Attachment attached, which with the

Marking agents, preferably recesses or

Elevations, at the Verstellmittel, to latching

Interaction can interact.

According to the invention, the base plate of the device can be mounted on the printed circuit board, in particular in one

Recess of the circuit board, and can also be mounted biased on the circuit board. The assembled base plate can be attached for this purpose with commercially available fasteners such as by riveting or screwing. Preferably, the base plate of the device is attached to the circuit board without fastening means by inserting or inserting into a recess of the printed circuit board, in particular a slot-shaped groove in the surface of the printed circuit board or in a printed circuit board cutout,

fastened, wherein the base plate also by means of a

Preload can be attached. In a further preferred embodiment of the invention, the first detent spring is designed such that the

Spring force of the first detent spring substantially perpendicular to the plane of the base plate which is defined by its length and width, acts, in particular like a

rectangular leaf spring which extends parallel to the plane of the base plate of the device according to the invention.

In a preferred embodiment, the detent spring has an elongated spring leg, which is mounted on the end face in extension of a longitudinal side of the base plate and transverse to the broad side of the base plate, preferably aligned at right angles, is arranged at a corner of the base plate.

In a further embodiment of the invention, an elongated recess, in particular in the form of a circuit board penetrating slot or a groove, introduced from an outer edge of the circuit board in an insertion direction in the x and / or y direction of the circuit board in the circuit board extends into it. In at least a part of this recess is the base plate of the device according to the invention

brought in.

For mounting the base plate to the circuit board, the base plate is inserted or plugged with at least part of its length in the circuit board in the insertion direction and is preferably fixed either by clamping and / or bias in the recess or is fastened by fastening means therein. In the assembled state, the plane of the extends

Base plate of the device according to the invention transversely, preferably perpendicular and thus in the z-direction to

PCB level.

In order to allow an advantageous fixation of the base plate in the circuit board, corresponds to the length of the elongated recess in the circuit board in one

Advantageous embodiment of the invention advantageously at least the length of the base plate, and / or the width of the base plate at least the thickness of the circuit board, and / or the width of the elongated recess in the

Printed circuit board at least the thickness of the base plate.

According to another feature of the invention that is

Adjusting means as a rotatable adjusting means,

designed in particular as knurling wheel, wherein the

Insertion direction of the elongated recess is preferably aligned substantially tangentially to the circumference of the rotatable adjusting means, so that with respect to the center and thus the axis of rotation of the rotatable

Adjusting means a right angle arrangement of the detent spring on the circuit board is made possible, whereby the force vector of the spring leg of the detent spring perpendicular to the

Circumference of the rotatable adjusting means is.

In a preferred embodiment, the rotatable

Adjusting means in the center of a bearing, with which the adjusting means on the circuit board can be rotatably mounted and further secured by means of a rivet to the circuit board, which in the assembly through the bearing and through a hole in the circuit board to

push is. In an advantageous embodiment, at least a portion of the base plate has a transversely to the plane of the base plate angled material extension, whereby the base plate is in itself stiffen ar and / or can be fixed to the circuit board in the z direction. Appropriately, such a material extension is attached to one or both sides of the base plate of the device according to the invention.

In a particularly expedient embodiment of the invention leads and / or stores such a material extension on the

Base plate of the device, the adjusting means, and / or fixes this, preferably a thumbwheel, rotatably mounted on a rotation axis. For rotatable guidance, an angled on one longitudinal side of the base plate material extension can be formed in the form of a wing, which is located in the

Substantially extends parallel to the plane of the circuit board on one side such that the wing overlaps an arranged on this side adjusting means and a

Having bore for receiving and guiding a bearing of this adjustment.

In a further embodiment of the invention, the

Marking agent of the adjusting agent in the form of

Marking recesses formed, wherein at least one detent spring corresponding to such a Markierungsausnehmung, protruding engagement means

has. In an alternative embodiment, the

Marking means may be formed in the form of marking projections, wherein at least one detent spring corresponding to a Markierungsvorsprung receiving

Has intervention means. In a further preferred embodiment, arranged on the base plate of the device according to the invention detent springs including the base plate and the

Engagement means as stamped and bent part, in particular made of a metal sheet or of a plastic executed.

In a further embodiment, the base plate, for biasing in the elongated recess of the printed circuit board, oriented transversely to the insertion direction

Spring clip on, said spring clip is preferably formed out of the base plate, so that these

Base plate has an inner recess.

Appropriately, the spring-loaded tongue is in a direction away from the adjustment direction, preferably in the x and / or y-direction aligned, so that the spring action of the spring clip against a facing to the adjusting inner surface in the elongated recess, and thus against the spring force of Detent spring acts whose

Spring force, however, acts on the adjusting means.

In a particularly preferred embodiment of the

Invention are the inner surfaces of the elongated recess in the circuit board with a step-like or step-like or wave-like, e.g. Also provided in a slightly S-shaped type, running profile. In particular, such a profile is arranged along the x-y plane of the circuit board, so that the inner surfaces of the elongate recess are further aligned substantially in the z-direction.

In a further, improved embodiment, this profile of the elongate recess can be developed in this way be that the inner surfaces also form planes parallel to the insertion direction of the base plate.

Expediently, planes which are formed parallel to the direction of insertion of the base plate alternate with planes which, in the direction of the adjustment means and / or tangentially to the plane

Circumference of a designed as a rotatable adjusting means are aligned. Preferably, both opposing inner surfaces of the elongated recess with a staggered arranged stepwise or staircase-like or wave-like, e.g. Also provided in a slightly S-shaped type, running profile.

According to a further feature of the invention, the number of planes formed by the inner surfaces is different at both opposite inner surfaces of the elongated recess.

Particularly advantageous, the base plate of the

Device according to the invention in the circuit board

be biased fixed when the minimum distance between two staggered but parallel to each other

Insertion direction at opposite inner surfaces of the elongate recess formed levels substantially corresponds to the thickness of the base plate. In such an embodiment of the invention, the above-described spring clamping tongue can suitably rest on a third, also parallel to the insertion direction formed plane, which is arranged on the adjustment means facing inner surface in the elongated recess and arranged for optimized bias such that they are in the insertion direction in front of the plane at the same Inn surface is located, which is the minimum distance

codetermined.

Suitably, the width of the elongate recess in the insertion direction can also taper and / or conical

run so that when inserting or during assembly of the base plate in the elongated recess the

Bias against a mounted on the base plate

Spring clip is additionally increased.

In a further embodiment of the invention, a second detent spring for a second adjusting means is mounted on the base plate of the device according to the invention, which is arranged on the opposite side of the circuit board. As a result, such is a second

Latching spring arranged on the opposite side of the first latching spring of the base plate and may otherwise be formed substantially identical to the first detent spring to act together with marking means of the second adjusting means for locking engagement. It should be noted, however, that the dimensions and / or

Bearings of the two adjusting means and / or their

Marking means may well be designed differently, so that the two locking springs also

are dimensioned differently.

Preferably, the distance between the two detent springs on the base plate essentially corresponds to the thickness of the printed circuit board, so that the base plate can already be fixed in the z direction by the detent springs. The latching device according to the invention is described below in preferred embodiments. In the

Show drawing:

Fig. 1: a first embodiment of a

Locking device according to the invention in perspective view,

2 shows a second embodiment of a

Locking device according to the invention with a single-stage elongated recess in perspective view,

3 shows a third embodiment of a

Locking device according to the invention with a two-step elongated recess in perspective view,

4 shows the latching device according to FIG. 3 in another perspective view, FIG.

Fig. 5: a side view, a front view and a

Top view of the latching device according to FIG.

3,

6 shows the latching device according to FIG. 3 in FIG

Exploded view,

Fig. 7: the circuit board of the latching device according to

3 in side view without adjusting means,

Fig. 8: an enlarged view of the elongated

Recess of the latching device according to FIG.

9 shows a fourth embodiment of a

Locking device according to the invention with a material extension for guiding

Adjusting means in perspective view, 10 shows the latching device according to FIG. 9 in another perspective view

11 is a side view, a front view and a

Top view of the latching device according to FIG.

9

FIG. 12 shows the latching device according to FIG. 9 in FIG

Exploded view, and

Fig. 13: the circuit board of the latching device according to

Fig. 9 in side view without adjusting.

In the following the invention will be explained in more detail by means of exemplary embodiments and with reference to the figures, wherein features of various

Embodiments can be combined with each other and the same or equivalent features in the figures with the same reference numerals.

Fig. 1 shows a first embodiment of

Locking device according to the invention for locking two on a printed circuit board (1) arranged adjusting means (5, 6) of an addressing device.

Both extending in the x-y plane,

opposite sides of the circuit board (1) each have a circuit arrangement (3) with a

adjustable electrical component (not shown), which can be adjusted with adjusting means (5, 6) in order to set an addressing can. The

Adjusting means (5, 6) are rotatable by way of example and designed as knurling wheels. A yerdrehbares adjusting means expediently in the center of a camp, with which the Adjusting means on the circuit board can be rotatably mounted and also eg by means of a rivet on the

Printed circuit board can be attached, which is to push during assembly through the bearing and through a hole in the circuit board.

On the peripheral surfaces of the adjusting means (5, 6) markings (21, 21 '), preferably in number format are respectively attached. Both adjusting means are rotatably mounted and fixed to the circuit board in each case by means of a bearing (15).

For locking both adjusting means (5, 6), the first embodiment of an inventive

Locking device a substantially flat

Base plate (2) arranged thereon with a first (4) and second (4 ') detent spring, wherein the second detent spring (4') in Fig. 1 is not shown. Due to the two arranged on the opposite sides of the circuit board adjusting means are

Detent springs in consequence of this also on opposite

Arranged sides of the base plate and may otherwise be formed substantially identical to each other. The following description, even if this on the

Description of the arrangement for latching a

Adjusting means on one side of the circuit board

limited, in principle also applies to an arrangement for locking an adjusting means on the opposite side of the circuit board. It should be noted, however, that the dimensions and / or bearings of the two

Adjusting agent and / or their marker well may also be designed differently, so that the two locking springs also correspondingly different

are dimensioned. Each detent spring (4, 4 ') has an elongated spring leg (7) which extends parallel to the plane of the base plate, wherein the spring force of the detent spring (4, 4') acts perpendicular to the plane of the base plate. The elongated spring leg is frontally in extension of a

Longitudinal side attached to the base plate and with respect to the broad side of the base plate transversely, preferably aligned at right angles, arranged at a corner of the base plate. On the spring leg of the detent spring (4, 4 ') is an engaging means (14) for latching engagement with marking means (23, 23') on the peripheral surface of the adjusting means (5, 6), which are designed as rectangular recesses. It should be noted, however, that the

Marking means (23, 23 ') of an adjusting

in principle may also be formed in an alternative embodiment in the form of marking projections, wherein the detent spring cooperating therewith for latching has in this case a receiving engagement means corresponding to the marking projections. The base plate of the latching device has a length (L) extending in the y-direction, a width (B) extending in the z-direction, and a thickness (D) extending in the x-direction extends, up. Further, the circuit board (1) has a thickness (D2) extending in the z-direction. The base plate (2) is mounted biased in the circuit board (1) in an elongated recess (8) and is inserted for mounting in this elongated recess (8) along a direction of insertion (El). The elongated one

Recess (8) extends from an outer edge of the printed circuit board (1) in the insertion direction (El) in the x-y direction in the circuit board (1) into it.

To preload the base plate (2) in the elongated

Recess (8) has this one to the insertion direction (El) transversely oriented spring clamping tongue (10). According to Fig. 1, the spring clip (10) in one of the

Adjustment (5, 6) facing away. Further, in Fig. 1, for additional locking, a

Locking arm (38) shown, which has latching means (not shown), which cooperate with corresponding locking means on the circuit board (1). Fig. 2 shows a second embodiment of

Device according to the invention for locking adjustment means (5, 6) arranged on a printed circuit board (1), which in contrast to that shown in FIG

Device has a wider elongated recess (8) with a width (B2) in the circuit board (1). Furthermore, the base plate (2) at both

Broad sides two spring clamping tongues (10, 10 '), which are inclined transversely to the insertion direction (El) and

As a result, allow an improved bias of the base plate (2) of the device according to the invention in the elongated recess (8). In a further modification to Fig. 1, the base plate (2) of the device of FIG. 2 on each side of the circuit board (1) at its one broad side a material extension (11, 11 '), which also inclined transversely to the insertion direction (El) is and the base plate (2) in the elongated

Recess (8) fixed in the z-direction.

Fig. 3 and Fig. 4 show in perspective view, each from a different viewing direction, a third embodiment of the inventive device for locking adjusting means (5, 6), which at

opposite sides of a printed circuit board (1) are mounted and each with a rivet (16) fixedly mounted or fixed thereto.

Fig. 5 shows the embodiment of the device for

Locking of Fig. 3 in a side view, a

Front view and a top view. 6 shows an exploded view of the components of the device according to the invention according to FIG. 3 and FIG. 4 in a perspective view. In Fig. 6 also an electrical pickup (20) is further shown, which in each case on the inside of the adjusting means acting as knurling wheels (5, 6) is arranged and for the transfer of a

electrical current between resistance paths is used, which are respectively arranged on the circuit arrangements (3) on both sides of the printed circuit board (1). Fig. 7 shows this third embodiment in one

Side view without an adjusting means (5, 6), which is why a bore (17) for receiving a bearing axis, a Bearing, a rivet or a journal of the

Adjustment (5, 6) is visible. FIG. 8 shows an enlarged representation of "A" in FIG.

marked part of the third section

Embodiment.

Based on this third embodiment, the base plate (2) further has a spring clip (10) formed out of the base plate so that these

Base plate has an inner recess.

In a further difference from the embodiments according to FIGS. 1 and 2, the third embodiment is shown

Inner surfaces of the elongated recess (8) in the

Printed circuit board, which are provided with a in the x-y-plane step-like or staircase running profile. The inner surfaces are in this case parallel to the

Insertion direction of the base plate extending planes (12 ', 12'',12''), wherein in the insertion direction (El), a first plane (12') in front of a second plane (12 ''), and a third plane (12 ^{1, 1} ) between this first (12 ¹ ) and this second plane (12 ' ¹ ) is located.

Furthermore, the inner surfaces are in the direction of

Adjusting means and / or tangentially to the circumference of a designed as a rotatable adjusting means planes (13 ', 13'',13' ^■ ').

In an alternative embodiment, the elongated recess may also be profiled in a wavelike manner, eg also in a slightly S-shaped manner. As can be seen from the figures, parallel to the insertion direction of the base plate formed planes alternate with planes which are aligned in the direction of the adjusting means and / or tangent to the circumference of a rotatable adjusting means, preferably with both opposite inner surfaces of the elongated recess offset with a are provided to each other arranged profile. The number of planes formed by the inner surfaces are at both opposite inner surfaces of

elongated recess different.

The base plate (2) of the locking device according to the invention again has a length (L) and is in

Essentially completely in the elongated recess (8), with the length (L2) introduced. Also, turn on the base plate in the insertion direction locking springs (4, 4 ') with spring legs (7, V) mounted engagement means (14, 14') for each latching engagement with complementary formed marking means (23, 23 ')

Adjustment means (5, 6).

Furthermore, a spring clamping tongue (10) is attached to the base plate, which rests against the third plane (12 ' ¹ ') aligned in parallel, this plane on the inner side facing the adjusting means (5, 6)

elongated recess is formed. As a result, the spring clamping tongue (10) biases the base plate (2) against the first parallel aligned plane (12 '), which is formed on the inside of the elongate recess facing away from the adjusting means (5, 6), as well as Spring leg of the detent spring against the marking means (23 ') of the adjusting means (6).

Expediently, the distance in the xy plane between the first parallel aligned plane (12 ') which is formed on the in the elongated recess (8) the adjusting means (5, 6) facing away from the inner surface, and the second parallel aligned plane (12 ^{1 1} ), which at the in the elongated recess (8) the adjusting means (5, 6)

facing inner surface is formed, the minimum

Distance in x-y plane and corresponds substantially to the thickness (D) of the base plate (2).

A fourth embodiment of the invention is in the

Figures 9 to 13 shown. FIGS. 9 and 10 show this embodiment in a perspective view from a different angle. Fig. 11 shows this

Embodiment of the device for locking in a side view, a front view and a plan view. Fig. 12 shows an exploded view and Fig. 13 a

Side view of this embodiment of the invention without an adjusting means (5, 6), wherein Fig. 12 also an electrical pickup (20) corresponding to FIG. 6, which in each case on the inside of the adjusting means

acting knurling wheels (5, 6) is arranged, shows.

The base plate (2) shown in the fourth embodiment is mounted in a slot-shaped elongated recess (8) of the printed circuit board (1) and has at its two longitudinal sides in each case a transverse to the plane of the base plate (2) angled material extension (11, 11 ') which is substantially parallel to. Plane of the circuit board is aligned and the adjusting means (5, 6) leads and preferably fixed. Furthermore, the two material extensions (11, 11 ') are each formed like a flight and overlap on each side of the circuit board in each case the sides of

Adjustment means (5, 6). The outer ends of the wing-shaped material extensions (11, 11 ') each have a bore for receiving and for guiding a bearing (15) of

Adjustment on. The adjusting means (5) are over

Bearing journals 18 stored in a bore (17) of the circuit board ..

To mount this embodiment of a device for locking the wing-shaped material extension in the z-direction of the circuit board is bent away from the circuit board side and far into the elongated recess of the

Printed circuit board inserted in the direction of insertion or

inserted until the flight-like material extension overlaps the adjustment. The base plate is pushed so far into the elongated recess until the wing-shaped material extension is centered in overlapping with the bore above the annular bearing and this surrounds the guide from the outside, preferably with the bearing of the

Locking means locked to guide. It is the

Spring leg of the detent spring, which latching

Intervene with the markers of this

Adjusting means is used, so far deflected against the spring force that engage the arranged on the spring leg engagement means with the marking means on the circumference of the adjusting latching engage with each other. The device is fixed in this position in the circuit board and preferably held by means of the spring leg under bias. In an alternative embodiment, instead of a bore for receiving and guiding a bearing, a guide pin may also be formed on the wing, which can be inserted into this bearing upon overlapping of the flight-shaped material extension above the annular bearing, so that the rotatable adjusting means is not only guided but also is rotatably supported and fixed simultaneously by means of the guide pin.

In all the above-described embodiments, which on the opposite sides of the circuit board

Have adjusting and correspondingly two detent springs, may also be advantageously provided that the distance between the two detent springs on the base plate in

Substantially corresponds to the thickness of the circuit board, so that the base plate can already be fixed by the locking springs in the z-direction.

Of course, only on one side of the circuit board, an adjustment can be arranged and

Consequently, already be a base plate with only one detent spring sufficient.

List of reference numbers:

1 circuit board

2 base plate

3 circuit arrangement

4 First detent spring

4 'Second detent spring

5 First adjustment means

6 Second adjustment means

7, 7 ¹ spring legs

8 elongated recess

9 trace contact parts

10, 10 'Spring clip

11, 11 'material extension

12 'first parallel aligned plane

12 'second parallel aligned plane

12 ¹ third parallel aligned plane

13 ¹ , 13 '', 13 '''tangentially oriented plane

14, 14 'engaging means

15, 15 'camp

16 rivet

17 hole

18 journals

20 customers

21 mark

23 markers

26 Outer peripheral surface

27 Verstellmittelkante

38 detent arm

B Width of the base plate

B2 width of the elongated recess

D thickness of the elongated recess D2 thickness of the printed circuit board

L Length of the base plate

L2 length of the elongated recess

El insertion direction of the base plate

Claims

Claims:

1. latching device for latching an on an extending in an x- and y-direction printed circuit board (1) adjusting means (5), in particular an electrical addressing device, wherein the

Device comprises: a substantially planar base plate (2) having a length (L), a width (B) and a thickness (D) at which, for latching engagement with marking means (23) of the

Adjusting means (5), a detent spring (4) is mounted, which preferably has an elongated spring leg (7), wherein in the assembled state, the base plate (2) on the

Printed circuit board (1) is mounted.

2. Device according to claim 1, wherein the spring force of the first detent spring (4) substantially perpendicular to the plane of the base plate (2), which is defined by its length and width, acts.

3. Device according to one of claims 1 to 2, wherein the base plate (2) is introduced in the assembled state with at least a portion of its length (L) in an elongated recess (8) extending from an outer edge of the printed circuit board (1). in an insertion direction (El) in the xy direction in the circuit board (1) extends into it. , Device according to claim 3, wherein the plane of the

Base plate (2) transversely, preferably perpendicular to

Board level of the circuit board (1) is aligned.

5. Apparatus according to claim 3 or 4, wherein the elongated recess (8) over a substantial part of its length (L2) penetrates the circuit board (1) in the z-direction, in particular in the manner of a slot or a

through groove in the circuit board (1).

6. Device according to one of claims 3 to 5, wherein the length (L2) of the elongate recess (8) at least the length (L) of the base plate (2), and / or the width (B) of the base plate (2) at least the Thickness (D2) of the printed circuit board, and / or the width (B2) of the elongated recess (8) in the printed circuit board (1) at least the thickness (D) of the

Base plate (2) has. 7. Device according to one of claims 3 to 6, wherein the adjusting means as a rotatable adjusting means (5),

in particular as a thumbwheel, is formed and the

Insertion direction (El) of the elongate recess (8) is aligned substantially tangentially to the circumference of the rotatable adjusting means (5).

8. Device according to one of claims 3 to 7, wherein at least a portion of the base plate (2) has a transversely to the plane of the base plate (2) angled material extension (11, II ¹ ).

9. Apparatus according to claim 8, wherein the material extension (11, 11 '), the adjusting means (5, 6) leads and / or stores. 10. Apparatus according to claim 9, wherein the guide an angled on a longitudinal side of the base plate

Material extension is formed in the form of a wing, which extends substantially parallel to the plane of the circuit board on one side such that the wing overlaps an adjusting means arranged on this side and wherein the wing has a bore for receiving and guiding a bearing of this adjusting means.

11. The device according to claim 9, wherein an angled on a longitudinal side of the base plate for guiding

Material extension is formed in the form of a wing, which extends substantially parallel to the plane of the circuit board on one side such that the wing overlaps an arranged on this side adjusting means and wherein the wing has a guide pin, which overlaps the wing-shaped material extension over the annular Bearings in this camp is insertable.

12. Device according to one of claims 1 to 11, wherein the marking means (23) in the form of

Marking recesses are formed and the detent spring (4) has a corresponding to the Markierungsausnehmungen, protruding engagement means (35) or the

Marking means (23) are formed in the form of marking projections, wherein the detent spring (4) one to the

Marking projections corresponding, receiving engaging means (35) has, and / or

the detent spring (4) including the base plate (2) and the engaging means (35) are designed as a stamped and bent part, in particular of a sheet metal. 13. Device according to one of claims 3 to 12, wherein the base plate (2) aligned transversely to the insertion direction (El) spring clamping tongue (10) for bias in the elongated recess (8) of the printed circuit board (1), said spring clamping tongue (10) preferably from the

Base plate (2) is shaped, so that this base plate (2) has a central recess (8).

14. The apparatus of claim 13, wherein the spring clamping tongue (10) facing away from the adjusting means (5, 6)

Direction, preferably in the x and / or y direction, points. 15. Device according to one of claims 3 to 14, wherein the inner surfaces of the elongate recess (8) in the

Circuit board with a stepped or staircase-like or wave-like, e.g. are also provided in a slightly S-shaped type, running profile, wherein such a profile is arranged in particular along the x-y plane of the circuit board.

16. The device according to claims 15, wherein both

opposite inner surfaces of the elongate recess are provided with a staggered profile.

17. Device according to one of claims 15 to 16, wherein the profile of the elongated recess be developed such that the inner surfaces of planes (12 ', 12'', 12 ^{1 1 1} ) parallel to the insertion direction of the base plate and preferably also form levels ( 13 ', 13' ¹ , 13 ^{1 1} ) form, which are aligned in the direction of the adjusting means and / or tangentially to the circumference of a rotatable adjusting means.

18. The apparatus of claim 17, wherein the minimum

Distance between two offset from each other, however, parallel to the insertion direction at opposite inner surfaces of the elongated recess formed levels substantially corresponds to the thickness of the base plate.

19. Device according to one of claims 15 to 18, wherein the number of levels at the two opposite inner surfaces of the elongate recess (8) is different.

20. Device according to one of claims 15 to 19, wherein the width (B2) of the elongate recess (8) in the insertion direction (El) decreases and / or the depth of the step levels of the stages in the insertion direction (El) different, and / or the step edges are rounded.

21. Device according to one of the preceding claims, wherein on the base plate (2) a second detent spring (4 ¹ ) for a second adjusting means (6) is mounted, which on the first adjusting means (5) opposite side of the printed circuit board (1) is and wherein the second detent spring is disposed on the opposite side to the first detent spring side of the base plate and with

Marking means (23 ') of the second adjusting means (6) cooperates for latching engagement.

22. Device according to claim 21, wherein the detent springs (4,

4 ¹ ) are formed substantially identically and / or the distance between the detent springs (4, 4 ') on the base plate (2) substantially corresponds to the thickness (D2) of the printed circuit board (1).