EP1075578B1 - Housing part with an actuating element - Google Patents

Abstract

The invention relates to a housing part (6) made of plastic which is especially used for an electronic key (1) of a closing system in a motor vehicle. The housing part (6) comprises an actuating element (3, 4) for an electric switch (10). The actuating element (3, 4) is constructed in the form of a face (27, 27') which can be elastically deformed for actuation and which optionally extends primarily in the surface (26) of the housing part (6). The actuating element (3, 4) acts upon a plunger (12) or the like of the electric switch (10) in an actuating manner. The actuating element (3, 4) is arranged on a rigid supporting element (13) which is essentially non-deformable when said actuating element (3, 4) is actuated. Both the actuating element (3, 4) and the supporting element (13) are prefabricated as half-parts. The half-parts are extrusion coated with the plastic of the housing part (6) during production of said housing part (6) such that the supporting element (13) faces the electric switch (10).

Description

The invention relates to a housing part made of plastic the preamble of claim 1.

Locking systems for motor vehicles are used to increase the Comfort for the user often with an electronic Key. After actuation by the user will be between the key and the Locking system a code, for example via electromagnetic waves, exchanged so that after positive evaluation of the code the doors that Trunk lid of the motor vehicle can be remote controlled or removed locked and other functions triggered.

Such an electronic key, which comes from the DE 196 05 201 A1 is known, has a housing Plastic. On a housing part are actuators for electrical switches for manual triggering of functions arranged of the locking system. The electrical switch is arranged on a printed circuit board in the housing, wherein the actuator via an opening in the housing part actuating on a plunger of the electrical switch acts. The actuator is in the manner of an essentially running in the surface of the housing part, designed for actuation elastically deformable surface.

To seal the housing against the ingress of Pollutants in the area of the actuators is on Housing part between the actuator and the electrical switch an elastic sealing element arranged, which covers the opening in the housing part. The Sealing element can at the edge of the opening in the housing part be welded or even molded. The production of the additional sealing element is complicated and expensive.

The invention has for its object a safe Sealing the housing part in the area of the actuator to achieve with simple means. In particular, the Manufacture of the housing part can be simplified.

This task is carried out in a generic housing part solved by the characterizing features of claim 1. Furthermore, in claim 11 is a method for producing a specified housing part.

The invention is based on the basic idea To provide support for the actuator, which Support element and the actuator as half parts be prefabricated. The two halves are at production of the housing part by injection molding along at least part of its edge with the Injection molded plastic for the housing part. That’s it Actuator together with the support element in the housing part embedded in such a way that the actuator itself for Sealing of the opening in the housing part is used for Actuation of the electrical switch is movable. Further Embodiments of the invention are the subject of Dependent claims.

For easy handling in the manufacture of the housing part it offers itself such a fastening for that Actuator on the support element to provide that the two Half parts a common component for overmolding with the Form plastic of the housing part. The attachment can be produced by force and / or positive engagement.

For example, pins, snap hooks, snap hooks or the like. on a half in corresponding recordings on intervene in the other half. Furthermore, one of the Half parts, especially the support element, through holes have. The through holes are with the overmolding Plastic of the housing part filled. This will make one particularly good anchoring of the support element together with the Actuator achieved in the housing part.

For actuating action on the plunger of the electrical Switch is the actuator in the direction of assigned electrical switch movable approach. This Approach can be in the manner of a cone approximately in the middle of the actuator on the support element facing Be arranged side. In the support element there is a Appropriate opening in which the approach to Action on the plunger protrudes.

In one embodiment, the use of a Offer soft elastic material for the actuator can, the approach is in one piece with the actuator educated. To this end, the approach in the manufacture of the Half molded on the actuator. In another Embodiment, which is particularly when using a offer hard elastic material for the actuator can, the approach consists of one from the actuator separate part, the actuator with a part its side facing the electrical switch at the base is applied. The approach is expediently by means of a spring-like element at the opening in the support element arranged. The spring-like element can be in the manner of a Torsion spring made of plastic, which spring-like element on the one hand at the opening in the support element and on the other hand is integrally molded on the neck.

Will the support element for the simultaneous recording of trained several actuators, so the Manufacture of a housing part with several Simplify actuators. The actuators are as individual half parts on this support element to one Component attached. Several can do just as well Actuators formed as a one-piece half-part be, which is then attached to the support member, again a component is formed. For overmolding with the Plastic of the housing part is then only this one Handle component. The actuator can be elongated Part with rounded corners and / or rounded sides, as oval part, as a round part or as a circular part be designed or any other desired shape have. The support element in turn has one to that Actuator or to the actuators in about corresponding shape.

In one development, the support element is of the type essentially flat plate and the actuator in the Kind of an elastically deformable, possibly a curvature having designed membrane. The elasticity of the The membrane is then determined by its thickness depending on the Hardness of the plastic set. As a plastic for that Actuator is suitable on the one hand a soft, elastic plastic, such as a thermoplastic elastomer. In particular, it can be the thermoplastic elastomer a block copolymer of polybutylene terephthalate and Act polyether glycol. On the other hand, for that Actuator also a hard plastic, such as polyamide, Polyacetal or the like. The housing part consists of a hard plastic, for example made of polyamide, the can be filled with glass fiber or glass balls.

The support element expediently also consists of a hard plastic. It can offer that a for light in at least a part of the visible Spectrum of largely transparent plastic, such as Polycarbonate, transparent amorphous polyamide or the like, is used. In this case, you can on special easily integrate a lighting element in the housing part. For this purpose, an approximately lenticular or cylindrical section integrally over one Carrier part can be arranged. This section is then like this encapsulated with the plastic of the housing part that the Section an injected into the wall of the housing part Window forms.

In the invention, the actuator itself serves as Sealing, so that an additional sealing element can be dispensed with. Nevertheless, it becomes a reliable one Sealing the housing in the area of the actuators achieved, with which a functionally reliable electronic key is obtained.

Since no additional sealing element is required, the is difficult to manufacture or process Manufacture of the housing part according to the invention simplified. This in turn saves costs. In particular, the support element per se as Item limp actuator and shape stabilized thereby easy to handle in the injection mold at the Production of the housing part to be inserted.

There are further advantages achieved with the invention especially in the fact that there is extensive freedom of choice the materials for the housing part and the actuator consists. In the previously known housing part are due of the necessary manufacturing conditions only certain Material combinations possible, for example a free one Do not allow color selection for the actuators. The actuators of the housing part according to the invention can be colored as desired.

In addition, the actuators are printed with the desired symbols or a laser marking of the Actuators possible. By using partial transparent materials for the actuators this with a functional and / or search lighting be trained to be illuminated. It is immediate evident that now a variety of Design options for the electronic key be opened.

Fig. 1

einen elektronischen Schlüssel in Draufsicht,

Fig. 2

einen Schnitt entlang der Linie 2-2 aus Fig. 1,

Fig. 3

einen Schnitt entlang der Linie 3-3 aus Fig. 1,

Fig. 4

einen Schnitt entlang der Linie 4-4 aus Fig. 1,

Fig. 5

einen Schnitt wie in Fig. 3 entsprechend einem weiteren Ausführungsbeispiel,

Fig. 6

einen Schnitt wie in Fig. 4 entsprechend dem weiteren Ausführungsbeispiel,

Fig. 7

eine Draufsicht auf das Stützelement als Halbteil,

Fig. 8

eine Draufsicht auf die Betätigungsorgane als Halbteil,

Fig. 9

eine Ansicht von der Unterseite auf das Halbteil aus Fig. 8,

Fig. 10

eine Ansicht von der Unterseite auf das Stützelement und die Betätigungsorgane als gemeinsames Bauteil und

Fig. 11

einen Schnitt entlang der Linie 11-11 aus Fig. 10.

Embodiments of the invention are shown in the drawings and are described in more detail below. Show it

Fig. 1

an electronic key in top view,

Fig. 2

2 shows a section along the line 2-2 from FIG. 1,

Fig. 3

2 shows a section along the line 3-3 from FIG. 1,

Fig. 4

2 shows a section along the line 4-4 from FIG. 1,

Fig. 5

3 shows a section as in FIG. 3 in accordance with a further exemplary embodiment,

Fig. 6

4 shows a section as in FIG. 4 in accordance with the further exemplary embodiment,

Fig. 7

a plan view of the support element as a half part,

Fig. 8

a plan view of the actuators as a half part,

Fig. 9

8 shows a view from the underside of the half part from FIG. 8,

Fig. 10

a view from the bottom of the support element and the actuators as a common component and

Fig. 11

a section along the line 11-11 of Fig. 10th

In Fig. 1 is an electronic key 1 for a Locking system shown in a motor vehicle. The Electronic key 1 has a housing 2 on which several actuators 3, 4 for remote-controlled triggering of functions of the locking system are arranged. For example, by manually operating the Actuators 3 the central locking or unlock and open the trunk lid. On the Actuators 3 are these functions appropriate symbols attached. Another one Actuator 4 is used, for example, to trigger a Alarm. The housing 2 has an asymmetrically wedge-shaped Shape that is particularly ergonomic for the user is manageable.

The housing 2 consists of a hard plastic, such as Example polyamide, glass fiber or glass ball filled Polyamide or the like, and is manufactured by injection molding. As can be seen in more detail from Fig. 2, the housing settles 2 essentially from a in the manner of a base trained housing part 6 and one in the manner of a Cover trained housing part 5 together, which Housing interior 31 in housing part 6 through housing part 5 is closed. In the housing interior 31 is a circuit board 7 to accommodate the for the functions of the electronic Key 1 required electronic and electrical Components 8 arranged. Next is in Housing interior 31 for the voltage supply of the electronic key 1 serving battery 9. Finally are the actuators 3, 4 assigned electrical switches 10 on the printed circuit board 7.

The actuators 3, 4 for the electrical switches 10 are arranged on the housing part 6. For ergonomic reasons and manageability for the electronic key 1 is that Actuator 3, 4 preferably in the manner of a essentially in the surface 26 of the housing part 6 extending surface 27 designed. The user presses the actuator 3, 4, it deforms elastically by the pressure exerted. The actuator acts 3, 4 on a plunger 12 or another Actuator of the electrical switch 10 for Actuation of the switch 10 until the user Release actuator 3, 4 again.

The actuator 3, 4 is on a rigid, at Actuation of the actuator 3, 4 essentially non-deformable support element 13 is arranged. preferably, the support element 13 consists of a hard plastic, a polyamide or the like can be used. Both that Actuator 3, 4 and the support element 13 are as Semi-finished parts 33, 34 prefabricated, shown in Figs. 7 and 8 are. These half parts 33, 34 are at an opening 14 of the Housing part 6 embedded in the housing part 6, the Embedding 37 substantially all around along the edge of the Opening 14 and along at least part of the edge of the half parts 33, 34 runs, as shown in more detail in FIGS evident. For this purpose, the half parts 33, 34 are on the edge area with the plastic of the housing part 6 in the manufacture of the Injection molded housing part 6 such that the support member 13 the electrical switch 10 is facing. How to continue recognizes, the overmolded edge of the half parts 33, 34 is so in the housing part 6 embedded that the support member 13 on the the electrical switch 10 closer side 15 of Housing part 6 and the actuator 3, 4 on the electrical switch 10 remote side 16 of the Housing part 6 are located. Through the along the opening 14 essentially all-round and self-contained Embedding 37 of the actuator 3, 4 in the housing part 6 is thus advantageously a seal of the Housing part 6 achieved at the opening 14.

It is preferred to have the surface 26 substantially of the housing part 6 extending surface 27 for the Actuator 3, 4 in the manner of an elastically deformable Design membrane. If for ergonomic reasons if desired, the membrane can also have a curvature, such as with the surfaces 27 'is also shown in Fig. 2, so that the membrane protrudes slightly beyond surface 26. The Actuator 3, 4 or the membrane consists of Plastic. The elasticity of the membrane is due to its thickness determined depending on the hardness of the plastic. Thus, the membrane deforms elastically under manual Influence of the user and acts on the plunger 12 on. In contrast, this is also made of plastic Support element 13 rigid in the manner of a substantially flat Plate formed as shown in Fig. 7. Thereby the support element 13 also stiffens the housing 2 in the region the opening 14.

In a further embodiment, the actuator 3, 4 is a approach movable towards the electrical switch 10 11 assigned. 2 that the Approach 11 in the manner of a peg approximately in the middle of the Actuator 3, 4 on the support element 13 facing Page 17 is arranged. In the support member 13 is an opening 18 corresponding to the extension 11, into which the Approach 11 protrudes. With manual intervention by the user approach 11 thus engages actuator 3, 4 through the opening 18 and ultimately actuates the Tappet 12 of the electrical switch 10.

In a first embodiment of the invention, which is shown in FIG and can be seen 6, the approach 11 is integral with the Actuator 3, 4 formed. Approach 11 on the actuator 3, 4, approximately in the middle, integrally molded. With such a Design it can offer itself as material for the membrane-shaped actuator 3, 4 a soft, to choose elastic plastic. For example, as Plastic for the actuator 3, 4 a suitable as a thermoplastic elastomer Polybutylene terephthalate and polyether glycol existing Block copolymer.

In a second embodiment, shown in Figs. 2-4 is, the approach 11 consists of an actuator 3, 4th separate part. The membrane-shaped actuator 3, 4th lies with a part 32 of page 17, the electrical Switch 10 is facing to the approach 11. The approach 11 is again by means of a spring-like element 28 on the Opening 18 arranged in the support member 13, whereby the Approach 11 with a restoring force in the direction of the plunger 12 of the switch 10 is movable. For example, that spring-like element 28 in the manner of a torsion spring Be plastic, as shown in FIG. 7 to is recognizable. The spring-like element is expedient 28 on the one hand at the edge of the opening 18 in the support element 13 and on the other hand, integrally molded onto the neck 11. At a Such a configuration can be used as material a hard for the membrane-shaped actuator 3, 4 Plastic, such as polyamide, polyacetal or the like to choose. How already executed, then the elasticity of the membrane-shaped actuator 3, 4 by the thickness of the Membrane set.

The two lie when embedded in the housing part 6 Half parts 33, 34 on one another at an edge region. to Simplification of the manufacture of the housing part 6 can do that Actuator 3, 4 attachable to the support member 13 be designed, whereby the two half parts 33, 34 an in 10 and 11 form common component 19 shown. The attachment by force and / or is expedient Form-fit between the two half parts 33, 34 produced.

An example of such a force and / or positive connection can be seen in Fig. 7 and 9, where the periphery or other suitable places of the one Half part 33, namely on the actuator 3, 4, useful distributed pins 20 are attached. The other half 34 namely the support element 13, in turn, now has it corresponding recordings 21. The actuator 3, 4 is attached to the support member 13 such that the pin 20 on one half part 33 in the receptacles 21 on the other half part 34 engage what is shown in Fig. 10 and 11 with the pin-receptacle connections 35 is indicated. Of course they can Pin 20 also on the support member 13 and the receptacles 21 on Actuator 3, 4 may be arranged. Instead of pin 20 can also use snap hooks, snap hooks or the like.

The component 19 is then along part of it Injection molded around the edge of the plastic of the housing part 6, so that the component 19 is embedded in the housing part 6. It is to emphasize that thereby in the area of the actuators 3, 4 a seal on the housing part 6 is achieved so that the penetration of pollutants into the housing 2 avoided becomes. A further improvement can be made by this achieve by at least one half part 33, 34 at the edge of the support element 13 and / or at the edge of the Actuator 3, 4 through holes 29 are provided. The through holes 29 are made during the encapsulation of the component 19 filled with plastic from the housing part 6, whereby a additional anchoring of the support element 13 and / or the Actuator 3, 4 is effected in the housing part 6.

As can be seen from Fig. 1, the Actuators 3, 4 an expedient, the housing 2nd adapted and ergonomically designed shape. That's how it is Actuator 3 as an elongated part with rounded corners designed. The sides of this part can also be rounded his. The further actuator 4 is a round, approximately circular part designed. If desired, it can Actuator 4 also have an oval shape. The Support element 13 has an essentially to the shape of the Actuators 3, 4 corresponding shape, as from Fig. 7 emerges. It can still offer that Support element 13 for receiving several actuators 3, 4, as can also be seen in FIG. 7. The support element 13 then consists of a single plate, with several actuators 3, 4 on this plate be attached. The actuators can each as individual, separate half-parts are formed, which is based on the Actuator 4 can be seen in Fig. 8. on the other hand can also have multiple actuators as one piece Half part be formed, which is based on the actuators 3 can be clearly seen in FIG. 10. 10 and 11 that is Actuator 4 and the associated part of the support element 13 omitted.

As can also be seen from FIG. 1, the housing can 2, a window 22 may be arranged, one of which is shown in FIG Visible function indicator for key 1 LED 30 is assigned to the circuit board 7. It can then offer the window 22 together with the half part 34 form, which is shown in Fig. 7 in more detail. This is on the support element 13 an approximately lenticular, cylindrical or other appropriate Shape-holding section 23 arranged. Section 23 is integral with the support element 13 via a carrier part 24 connected. Overall, the support element 13 together with the Section 23 from one for light in at least one Part of the visible spectrum, which is characterized by that of the Light emitting diode 30 emitted radiation is largely determined made of transparent plastic. As a plastic for that Support element 13 is in this case, for example Polycarbonate, transparent amorphous polyamide or the like suitable. When molding around the component 19, the section 23 then simultaneously with the plastic of the housing part 6 overmolded in such a way that the section 23 a in the wall 25th of the housing part 6 forms injected window 22, as in Fig. 2 can be seen.

A preferred method for producing the housing part 6 thus proceeds as follows. First of all Actuator 3, 4 and the support element 13 as half parts 33, 34 of the appropriate plastic in itself prefabricated in a known manner. Then the Half parts 33, 34 arranged together to form a component 19 and / or attached. The component 19 is in the injection mold introduced for the housing part 6. This introduction takes place so that the support member 13 between the actuator 3, 4 and the support element 13 located in FIG. 11 clearly visible cavity 36, which is responsible for the deformation of the Surface 27, 27 'of the actuator 3, 4 for actuating the Switch 10 is required in the injection mold largely seals. Then the plastic for the Housing part 6 injected into the injection mold, the Support element 13 penetration of the plastic in the Cavity 36 prevented. Simultaneously with the spraying of the The housing part 6 is molded around the component 19 at least part of its edge with the plastic for the housing part 6, after which the component 19 at its edge in Housing part 6 is embedded.

The invention is in the above embodiments described using a housing part, the use as Housing for an electronic key finds. Of course, the invention is not based on this preferred use as well as on the described and illustrated embodiments limited. It includes rather all professional training within the framework of the inventive concept. So an inventive Housing part also on remote controls for television or Audio devices, on keyboards, on control panels in Motor vehicles and household appliances or the like. Use Find.

Reference numeral list:

1:

electronic key

2:

casing

3,4:

actuator

5,6:

housing part

7:

circuit board

8th:

Component (on circuit board)

9:

battery

10:

electrical switch

11:

Approach (to actuator)

12:

Plunger (from electrical switch)

13:

support element

14:

Opening (in housing)

15.16:

Side (from housing part)

17:

Side (of actuator)

18:

Opening (in the support element)

19:

Component (from actuator and support element)

20:

spigot

21:

admission

22:

window

23:

Section (for windows)

24:

support part

25:

Wall (from housing part)

26:

Surface (of housing part)

27.27 ':

Area (of actuator)

28:

feather-like element

29:

Through Hole

30:

led

31:

housing interior

32:

Part (of actuator)

33:

Half part (actuator)

34:

Half part (support element)

35:

Pin-receiving-type interconnect

36:

cavity

37:

embedding

Claims (21)

1. Housing part made of plastics material, in particular for an electronic key (1) of a locking system of a motor vehicle, comprising a housing interior (31), in which an electrical switch (10) is located, and comprising an actuating member (3, 4) for the electrical switch (10), the actuating member (3, 4), for acting in an actuating manner on the electrical switch (10), characterised in that the actuating member (3, 4) is arranged on a rigid supporting element (13) which is substantially undeformable when the actuating member (3, 4) is actuated in such a way that the supporting element (13) is facing the electrical switch (10), in that the actuating member (3, 4) and the supporting element (13) consist of prefabricated half parts (33, 34) and in that the half parts (33, 34) are encapsulated with the plastics material of the housing part (6) at least along a part of their edge, during production of the housing part (6).
2. Housing part according to claim 1, characterised in that the actuating member (3, 4) is designed in the manner of a face (27, 27') which is elastically deformable for actuation and extends optionally substantially in the surface (26) of the housing part (6), and in that the actuating member (3, 4) acts in an actuating manner on the electrical switch (10) by means of a plunger (12).
3. Housing part according to claim 1 or 2, characterised in that the edge of the half parts (33, 34) encapsulated with the plastics material of the housing part (6) is embedded in the housing part (6) in such a way that the supporting element (13) is located on the side (15) of the housing part (6) located closer to the electrical switch (10) and the actuating member (3, 4) is located on the side (16) of the housing part (6) remote from the electrical switch (10).
4. Housing part according to claim 1, 2 or 3, characterised in that the half parts (33, 34) are adjacent to one another at an edge region, the actuating member (3, 4) being fastenable to the supporting element (13) in such a way that the two half parts (33, 34) form a common component (19), which is encapsulated with the plastic material of the housing part (6) along at least a part of its edge.
5. Housing part according to claim 4, characterised in that fastening is produced by frictional or positive connection, in that pegs (20), latching hooks or snap hooks engage on one half part (33) in receivers (21) corresponding thereto on the other half part (34).
6. Housing part according to claim 4 or 5, characterised in that at least one of the half parts (33, 34) has through holes (29) which are filled during encapsulation with plastics material of the housing part (6), in such a way that an additional securing at least of the one half part (33, 34) in the housing part (6) is brought about.
7. Housing part according to any one of claims 1 to 6,
   characterised in that an attachment (11) for actuating engagement on the plunger (12) of the electrical switch (10) and movable in the direction of the electrical switch (10) is associated with the actuating member (3, 4), in that the attachment (11) is arranged in the manner of a peg approximately in the centre of the actuating member (3, 4) on the side (17) facing the supporting element (13), and in that an opening (18) corresponding to the attachment (11) is arranged in the supporting element (13), into which opening (18) the attachment (11) projects.
8. Housing part according to claim 7, characterised in that the attachment (11) is designed integrally with the actuating member (3, 4), in that the attachment (11) is integrally moulded onto the actuating member (3, 4).
9. Housing part according to claim 7, characterised in that the attachment (11) consists of a part which is separate from the actuating member (3, 4), the actuating member (3, 4) resting with a part (32) of the side (17) facing the electrical switch (10) on the attachment (11).
10. Housing part according to claim 9, characterised in that the attachment (11) is arranged on the opening (18) in the supporting element (13) by means of a spring-like element (28).
11. Housing part according to claim 10, characterised in that the spring-like element (28) is designed in the manner of a torsion spring made of plastics material, and in that the spring-like element (28) is integrally moulded, on the one hand, on the opening (18) in the supporting element (13) and, on the other hand, on the attachment (11).
12. Housing part according to any one of claims 1 to 11, characterised in that the supporting element (13) is designed to receive a plurality of actuating members (3, 4), a plurality of actuating members (3) being designed as an integral half part and/or the actuating members (4) being designed as individual half parts.
13. Housing part according to any one of claims 1 to 12, characterised in that the actuating member (3, 4) is designed as an elongate part with rounded corners and/or rounded sides, as an oval, round or as a circular part, and in that the supporting element (13) has a design approximately corresponding to the actuating member (3, 4).
14. Housing part according to any one of claims 1 to 13, characterised in that the supporting element (13) is designed in the manner of a substantially flat plate.
15. Housing part according to any one of claims 1 to 14, characterised in that the actuating member (3, 4) is designed in the manner of an elastically deformable membrane optionally having a curvature, the elasticity of the membrane being established by the thickness thereof as a function of the hardness of the plastics material.
16. Housing part according to any one of claims 1 to 15, characterised in that the actuating member (3, 4) consists of a soft, elastic plastics material, such as of a thermoplastic elastomer or of a block copolymer of polybutylene terephthalate and polyether glycol, or of a hard plastics material, such as polyamide or polyacetal, and in that the housing part (6) consists of a hard plastics material, such as polyamide or glass fibre-filled or glass bead-filled polyamide.
17. Housing part according to any one of claims 1 to 16, characterised in that the supporting element (13) consists of a hard plastics material.
18. Housing part according to claim 17, characterised in that the plastics material for the supporting element (13) is a plastics material which is largely transparent to light at least in a partial region of the visible spectrum, such as polycarbonate or transparent amorphous polyamide.
19. Housing part according to claim 18, characterised in that a section (23) which is approximately lenticular or cylindrical is arranged on the supporting element (13), the section (23) being encapsulated with plastics material of the housing part (6) in such a way that the section (23) forms a window (22) moulded in the wall (25) of the housing part (6).
20. Housing part according to claim 19, characterised in that the section (23) is arranged integrally on the supporting element (13) via a carrier part (24).
21. Method for producing a housing part (6) made of plastics material according to any one of the preceding claims, characterised in that the actuating member (3, 4) and the supporting element (13) are prefabricated as half parts (33, 34) made of plastics material, in that the half parts (33, 34) are arranged and/or fastened on one another to form one component (19), in that the component (19) is introduced into the injection mould for the housing part (6) in such a way that the supporting element (13) largely seals the cavity (36) serving to actuate the actuating member (3, 4), and located between the actuating member (3, 4) and the supporting element (13), and in that the component (19) is then encapsulated at least along a part of its edge, with the plastics material for the housing part (6) during injection of the housing part (6).

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