EP1952480B1 - Fastening of a vehicle roof antenna by means of a clamping part - Google Patents

Description

The invention relates to a roof antenna, having in particular a base plate for receiving antenna elements, which are covered by an antenna hood that can be connected to the base plate, according to the features of claim 1.

The state of the art is a roof antenna, as shown in Figure 10 is shown as an example. A roof antenna is usually attached to the body of a motor vehicle by a threaded pin formed on the bottom of the base plate, which when the roof antenna is placed on the vehicle body from above or outside through a correspondingly shaped hole in the same and then from below or a special toothed ring nut is screwed tight inside the body. Here, the body sheet is clamped between the base plate and the teeth of the toothed ring nut and the roof antenna is firmly connected to the body with no play. At the same time, when the toothed ring nut is tightened, a sealing contour running around the roof cutout between the base plate and the outer roof surface is pre-tensioned in a defined manner to such an extent that no moisture from the space between the base plate and the outer roof surface into the area of the roof cutout and thus into the interior of the body and the roof antenna can get. Furthermore, when the toothed ring nut is screwed tight, the teeth of the toothed ring nut press slightly into the underside of the body panel, which creates a secure ground connection between the roof antenna and the body. The threaded pin and the hole are designed in such a way that the roof antenna can only be installed when it is correctly aligned with the vehicle.

The disadvantages of the method of fastening described are as follows: The overall height of the hard and angular metal parts, consisting of threaded pin and toothed ring nut, is, for example, 20 mm below the roof plate. Although protected by the plastic parts of the roof lining underneath during normal vehicle operation, these parts pose a risk to rear passengers in the event of an accident, as they can hit these protruding parts in the event of a crash, causing serious head injuries. The toothed ring nut is an at least two-part composite part, the nut body being rotatably attached to the toothed ring. As such, it is therefore a complex and expensive part to manufacture. The threaded pin on the base plate is also complex to manufacture and the external thread is prone to damage. The toothed ring nut is a separate part that the fitter has to plan and make available at the installation site. During assembly, this part has to be fetched separately and screwing onto the threaded pin from below is difficult in confined spaces. In addition, the toothed ring nut has a large wrench size and requires a correspondingly voluminous and unwieldy tool to tighten it. The toothed ring nut can only be tightened and tightened from below. This means that two handling steps are always required when assembling the roof antenna, namely first placing the roof antenna from above the body and then screwing the nut tight from below or within the body, which makes assembly complex overall. The roof antenna must also be unscrewed from below, whereby the headliner must first be removed.

the end DE 102 10 593 A1 Another fastening arrangement is known, this arrangement also having various disadvantages: Due to the V-shaped spring hook contour of the locking hooks of the spring sleeve, an annoying height of the hard parts below the roof plate cannot be avoided here either. The spring sleeve that is screwed to the base plate is a complicated one Elaborate special part that has to be made of expensive spring steel or high-quality composite plastic to achieve the necessary strength. The screw with the shoulder is also an expensive special part, which makes the construction complex and expensive overall. A possibility to dismantle the roof antenna exclusively from above is not given here either, since before removing the locking support vertically upwards from the roof cutout, the outer locking hooks must first be compressed below the roof (in the direction of the screw axis) so that they can be raised again can be passed through the roof cutout.

the US-A-2005/0024280 discloses a structure for attaching an antenna device to a first side of a panel body, the structure having a first attachment member comprising a tubular body having a first end having a first width, a second end and a slot joining the first end and the second end and a plurality of resilient claw members including a pair of claw members extending from the first end of the tubular body so that a distance between the distal ends thereof has a second width greater than a third width of one formed in the plate body Opening, further a protrusion protruding from the antenna device and fitted into the first end of the first fastening element, further a second fastening element fitted into the second end of the first fastening element while being coupled to the protrusion in a screw manner, wherein the ers th width is smaller than the third width when the projection and the second fixing element are in a first screw position, so that the projection, the first fixing element and the second fixing element can pass through the opening from the first side to a second side, while bending the pair of claw members inward, restoring the pair of claw members to prevent the protrusion, the first fixing element and the second fixing element pass through the opening from the second side to the first side, and wherein the slot is widened such that the first end of the first fastening element has a fourth width which is greater than the third width when the Projection and the second fastening element are in a second screw position.

From the DE-A-196 40 110 A fastening device, in particular for a vehicle antenna, is known which has a latching support element, which can be inserted into a receiving opening of a fastening surface in one direction of insertion, and a support element that interacts with the latching support element, the latching support element having at least one latching support that is inserted into the receiving opening inserted state of the fastening device on the opposite side of the fastening surfaces from the support element, wherein the locking support element and the support element of the fastening device are mechanically connected by a locking element acting in the insertion direction, and wherein between the locking support element and the support element of the fastening device at least one acting in the insertion direction, on the latching support element and the support element engaging spring element is provided.

In the US-A-2003/231140 discloses an antenna mounting device comprising: a housing, the housing adapted to reside on a panel, the housing including at least one housing opening that is substantially aligned with at least one panel opening when on the panel and at least one mounting unit extending from the housing through the at least one housing opening such that the mounting unit is adapted to exert a compressive force on the housing when tightened on the plate, each of the at least one mounting units comprising: at least one threaded section, at least one threaded nut that can be coupled to the at least one threaded section, at least one to the at least one threaded section and / or the at least one threaded nut coupled pressure cone and / or an anchor that is coupled to the at least one threaded section and / or the at least one threaded nut, whereby by screwing the at least one threaded section onto the at least one threaded nut a relative movement of the at least one pressure cone and the at least one armature is effected to provide a compressive force.

The invention is therefore based on the object of avoiding the disadvantages outlined at the beginning. In particular, a fastening arrangement for roof antennas is to be implemented which, by means of bracing (preferably by screwing), enables the roof antenna to be fastened firmly and watertight to a vehicle body without any play.

This object is achieved by the features of claim 1.

According to the invention it is provided that the connecting means are designed as a clamping part that can be moved axially and radially between the base plate of the roof antenna and the body surface (= fastening surface), in particular the roof. The hard parts of the fastening below the roof surface require a minimum overall height, ideally approx. 5 mm, since this height is generally regarded as uncritical with regard to the risk of head injuries for rear passengers. They are preferably designed with rounded or beveled edges in order to further reduce the risk of injury. The fastening can be produced with the simplest and most cost-effective fastening elements. In particular, the screw connection element is made as simple and short as possible, and the holding element can be manufactured from inexpensive material by means of inexpensive mass production (for example zinc die-casting). The fastening elements can be preassembled on the base plate in a simple manner and thus form an assembly unit that is easy to use. This eliminates the laborious provision, Picking up and attaching additional fasteners and tools. The fastening concept is suitable both for conventional assembly and disassembly (placing the roof antenna from above or outside the body and then fastening, usually by screwing from below or from inside the body), but also exclusively for assembling and disassembling the roof antenna from above or outside the body (placing the roof antenna from above or from outside the body and then fastening, usually by screwing, also from above or from outside the body). The fastening concept is implemented with an easy-to-implement coding for the installation of the roof antenna in the clearly correct orientation in relation to the body surface of the vehicle. Furthermore, it is designed with an easy-to-implement pre-locking function of the roof antenna on the body, which is particularly important when using the usual assembly method with screwing from below, so that the roof antenna, which is preassembled from above, cannot be accidentally pushed back up out of the roof cutout .

The fastening arrangement according to the invention has the following features: A clamping part is captively fastened to the underside of the base plate by means of a fastening element (preferably a screw) so that by twisting, shifting or other radial and / or axial movement on the fastening element (preferably by twisting the screw) the distance between the clamping part and the base plate can be changed. The fastening element can optionally be actuated from below the base plate or from above the base plate or from both directions. The changeable distance between the base plate and the clamping part makes it possible to first take up the thickness of the fastening surface (usually a body panel) with sufficient play between the base plate and the clamping part during the assembly process (distance dimension set before installation) and then by reducing it the distance to clamp the fastening surface between the base plate and the clamping part. The clamping part has an outer contour that enables it to be guided through a corresponding roof cutout in the mounting surface when the roof antenna is placed on it and then, by rotating and / or moving the clamping part by a defined amount, to bring it into engagement under the mounting surface so that the clamping part (and with it the roof antenna) cannot be removed from the roof cutout again against the direction of insertion. For this purpose, for example, triangular or polygonal, oval, elliptical or other polygonal or also splined-wave-shaped outer contours of the clamping part are suitable. The clamping part can be brought into engagement under the fastening surface after it has been passed through the roof cutout, preferably by rotating the clamping part over or together with the roof antenna, if the fastening element is fastened to the base plate in a suitable manner secured against rotation. The engagement of the clamping part under the fastening surface can preferably also take place by direct rotation by hand, if for this purpose the clamping part is attached to the base plate so that it can be rotated by the appropriate amount (angle and / or path) relative to the base plate. The engagement of the clamping part under the fastening surface can preferably also be done by rotating it over or together with the screw, if there is sufficient defined friction between the screw and the clamping part and a mechanical stop to the base plate or to the roof cutout reduces the angle of rotation of the clamping part to the limited to the extent necessary to bring about the overlap. For example, the first quarter turn of the screw, during which the clamping part rotates with it, the engagement overlap can be established and then, if the clamping part cannot be rotated further by the stop, further turning of the screw leads to a reduction in the distance between the clamping part and the base plate, up to the intended clamping of the fastening surface. The fastening arrangement can accordingly also be designed with more than one clamping part and fastening element. The clamping part and / or the Base plates contain a thread for receiving the fastening element if it is designed as a screw. If only one of the parts is equipped with a thread, the screw in the other part can be rotated, but is mounted in an axially fixed manner. The clamping part can have feed-through openings for cables or for connectors (plug geometries) molded onto the base plate or protruding outward through openings in the base plate. The clamping part can contain geometric elements that penetrate a layer of paint on the body when screwed tight and ensure electrical ground contact (points, mandrels, cutting edges). The clamping part can contain elements (e.g. molded, clipped-on plastic parts or the like) through which a deflection, preferably a 90 ° deflection (from vertical to horizontal direction), of cables coming from inside the roof antenna is effected. The clamping part can advantageously be designed in the form of a simply designed flat clamping plate, which can be produced inexpensively (massive forming, die casting or the like). The clamping part can be designed with rounded or beveled edges to avoid the risk of accidents. The fastening arrangement can be provided with a position coding which prevents the roof antenna from being mounted in a position other than the intended position. For this purpose, the shape of the roof cutout and the clamping part can be designed in such a way that the clamping part can only be inserted in the intended position and the subsequent rotation and / or displacement is only possible in the intended direction and with the intended amount. The fastening arrangement can be provided with a pre-latching function that securely fixes the roof antenna in the correct position before and when it is screwed on. For this purpose, the clamping part and / or the base plate are provided with shaped projections which only fit into the roof cutout in the correct position and which snap into place through spring force preloading, for which at least one resilient element is provided (e.g. sheet metal spring, disc spring, resilient areas on the sealing pad or like). Exemplary embodiments of the invention, to which it is not limited, are described below and explained with reference to the figures.

Figur 1:

Dachantenne komplett vormontiert, Klemmteil mit notwendigem Abstand zur Bodenplatte voreingestellt,

Figur 2:

Einzelteile gemäß Figur 1 von unten (ohne Kabel),

Figur 3:

Einzelteile gemäß Figur 1 von oben mit Dachausschnitt,

Figur 4:

Montageschritt 1: vertikales Einführen des Klemmteils in das Dachausschnitt, um 45° verdreht zur Fahrtrichtung,

Figur 5:

Montageschritt 2: Verdrehen des Klemmteils zusammen mit der Dachantenne zur Fahrtrichtung hin,

Figur 6:

Montageschritt 3: Dachantenne mit Klemmteil in Fahrtrichtung, Vorverrastung Klemmteil im Loch,

Figur 7:

die Dachantenne im Schnitt, lose vormontiert und vorverrastet im Dachausschnitt,

Figur 8:

Montageschritt 4: Schraube von oben (nötige Öffnung in Haube für Werkzeug nicht dargestellt) oder von unten festgezogen, damit Dachantenne fertig montiert und Lochdichtung vorgespannt,

Figur 9:

Dachantenne fertig montiert im Dachausschnitt, Ansicht von unten,

Figur 10:

Dachantenne nach dem Stand der Technik.

Show it:

Figure 1:

Roof antenna completely pre-assembled, clamping part preset with the necessary distance to the base plate,

Figure 2:

Individual parts according to Figure 1 from below (without cable),

Figure 3:

Individual parts according to Figure 1 from above with roof cutout,

Figure 4:

Assembly step 1: vertical insertion of the clamping part into the roof cutout, rotated by 45 ° to the direction of travel,

Figure 5:

Assembly step 2: twisting the clamping part together with the roof antenna towards the direction of travel,

Figure 6:

Installation step 3: Roof antenna with clamping part in the direction of travel, pre-locking of the clamping part in the hole,

Figure 7:

the roof antenna in section, loosely pre-assembled and pre-locked in the roof cutout,

Figure 8:

Assembly step 4: screw from above (necessary opening in the hood for tools not shown) or tightened from below so that the roof antenna is fully assembled and the hole seal is pre-tensioned,

Figure 9:

Roof antenna fully assembled in the roof cutout, view from below,

Figure 10:

State-of-the-art roof antenna.

In the Figures 1 to 9 is, as far as shown in detail, 1 denotes a roof antenna which has a base plate 2 and an antenna hood 3 and a clamping part 4 according to the invention. In this example, the clamping part 4, which is designed to be square in its basic shape, is fastened to the base plate 2 in a manner secured against rotation via two pins 5 on the base plate 2. The clamping part 4 and the base plate 2 are equipped with an internal thread 6, 7, the thread 6 of the clamping part 4 being a left-hand thread and a symmetrical screw 8 being correspondingly equipped with a right-hand and a left-hand thread. For position coding, the clamping part 4 has at least one lug, here preferably two lugs 9. The fastening surface (body surface), here a roof of the vehicle, is designated by 10, which has a cutout, roof cutout 11. The roof cutout 11 has recesses 12 corresponding to the noses 9. Antenna elements (antenna radiators) are denoted by 13, 14, a GPS module is denoted by 15 and a connection for an antenna rod is denoted by 16. A twisting of the clamping part 4 or the roof antenna 1 in the wrong direction is prevented by stops 4.1 on the clamping part 4 to the wall of the roof cutout. For pre-locking, the contour of the roof cutout 11 is formed on top of the clamping part 4 (see reference number 4.2). Elastic elements on the sealing support of the base plate 2 (here the outer sealing lip 2.1, additional elements are possible and advantageous, however) generate the necessary pretension to push the roof antenna 1 together with the clamping part 4 slightly upwards and thus the clamping part 4 in the pre-latching position to hold in the roof cutout 11. The clamping part 4 is provided at the top with four cutting edges 4.3, which cut into the edges of the roof cutout 11 when screwed tight and thus establish a ground contact. 17, 18 and 19 denote cables over which the signals of the antenna elements are transmitted.

In the Figures 4, 5 , 6th and 8th are assembly step 1 (vertical insertion of the clamping part 4 into the roof cutout 11, rotated by 45 ° to the direction of travel), Assembly step 2 (turning the clamping part 4 together with the roof antenna 1 towards the direction of travel), assembly step 3 (roof antenna 1 with clamping part 4 in the direction of travel, pre-locking of the clamping part 4 in the roof cutout 11), and assembly step 4 (screw 8 from above (necessary opening in Hood for tool not shown) or tightened from below so that roof antenna 1 is fully assembled and hole seal is pre-tensioned).

The invention thus provides a roof antenna 1 in a preferred embodiment, having a base plate 2 for receiving antenna elements 13, 14, 15, 16 which can be connected to the base plate 2 (the base plate 2 may or may not be present) Antenna hood 3 are covered, and having at least one connecting means consisting of at least one clamping part, which is attached to the base plate by means of at least one fastening element (preferably a screw) protruding downwards and whose distance to the base plate can be changed by actuating the fastening means (preferably the screw) The roof antenna 1 can be mounted on a vehicle body surface, in particular a roof 10, having at least one cutout, in particular a roof cutout 11, of a vehicle by means of the connecting means, it being provided that the clamping part and the cutout have such a matching shape, so that the clamping part in the course of placing the roof antenna on the body surface in the direction essentially perpendicular to the body surface in at least one intended assembly position through the cutout under the body surface and that the clamping part in the course of lifting the roof antenna from the body surface in the opposite direction at least one same intended assembly position can be easily guided up through the cutout again by hand and without further measures of unlocking or the like and that the clamping part can be brought into at least one fastening position different from the assembly position by twisting, shifting or other suitable measure under the body surface can, in the Cover the clamping plate and cutout at least in partial areas so that it is no longer possible to guide the clamping plate upwards and that in this fastening position by actuating the fastening element (preferably by tightening the screw) the distance between the clamping part and the base plate is reduced to such an extent that the body surface between Floor plate (or any other lower part of the roof antenna) and clamping part is clamped and the roof antenna is thus attached to the body surface.

• das Verbindungsmittel als ist Bajonett-Klemmteil 4 ausgebildet, das mittels eines Befestigungselements an der Unterseite der Dachantenne befestigt ist,
• das Bajonett-Klemmteil passt in den Ausschnitt der Karosseriefläche und kann durch dieses hindurchgeführt werden,
• das Bajonett-Klemmteil kann nach dem Hindurchführen durch den Ausschnitt der Karosseriefläche unter dieser in überdeckenden Eingriff gebracht werden,
• das Bajonettklemmteil und die Dachaussparung weisen eine im wesentlichen dreieckige, viereckige, polygonale, keilwellenförmige, elliptische oder in anderer Weise geeignete unrund ausgeführte Kontur auf,
• das Ineingriffbringen erfolgt durch ein Verdrehen des Bajonett-Klemmteils unter der Karosseriefläche,
• das Ineingriffbringen erfolgt durch ein Verschieben des Bajonett-Klemmteils unter der Karosseriefläche,
• das Verdrehen oder Verschieben des Bajonett-Klemmteils erfolgt zusammen mit der Dachantenne, wofür das Bajonett-Klemmteil verdreh- bzw. verschiebefest mit der Dachantenne verbunden ist,
• das Verdrehen oder Verschieben des Bajonett-Klemmteils erfolgt unabhängig von der Dachantenne, wofür das Bajonett-Klemmteil an der Dachantenne verdrehbar oder verschiebbar befestigt ist,
• das unter der Karosseriefläche in überdeckenden Eingriff gebrachte Bajonett-Klemmteil kann über die Betätigung des Befestigungselements zur Karosseriefläche hin verschoben werden, bis die Karosseriefläche zwischen Bajonett-Klemmteil und Dachantenne eingespannt wird,
• die Betätigung des Befestigungseilements kann von unten bzw. von innerhalb der Karosserie erfolgen,
• die Betätigung des Befestigungseilements kann von oben bzw. von außerhalb der Karosserie erfolgen,
• das Befestigungselement ist als Schraube ausgeführt,
• das Gewinde der Schraube hat in dem Bajonett-Klemmteil sein Gegengewinde und die Schraube ist in der Dachantenne drehbar gelagert,
• das Gewinde der Schraube hat in der Dachantenne, üblicherweise in deren Bodenplatte, sein Gegengewinde und ist im Bajonett-Klemmteil drehbar gelagert,
• die Schraube ist als Stiftschraube mit rechts-links-Gewinde ausgeführt und hat in der Dachantenne und im Bajonett-Klemmteil ihr Gegengewinde,
• die Betätigung des Befestigungselements ist von oben bzw. von oberhalb der Karosseriefläche und/oder von unten bzw. unterhalb der Karosseriefläche her möglich.

Furthermore, the following options can be implemented alone or in a suitable combination:

• the connecting means is designed as a bayonet clamping part 4, which is fastened to the underside of the roof antenna by means of a fastening element,
• the bayonet clamping part fits into the cutout of the body surface and can be passed through it,
• the bayonet clamping part can be brought into overlapping engagement after passing through the cutout of the body surface below this,
• the bayonet clamping part and the roof recess have an essentially triangular, square, polygonal, spline-shaped, elliptical or otherwise suitable non-circular contour,
• the engagement takes place by twisting the bayonet clamping part under the body surface,
• the engagement takes place by moving the bayonet clamping part under the body surface,
• the bayonet clamping part is rotated or shifted together with the roof antenna, for which the bayonet clamping part is connected to the roof antenna so that it cannot rotate or move,
• the twisting or shifting of the bayonet clamping part takes place independently of the roof antenna, for which the bayonet clamping part is attached to the roof antenna in a rotatable or displaceable manner,
• the bayonet clamping part brought into overlapping engagement under the body surface can be shifted towards the body surface by actuating the fastening element until the body surface is clamped between the bayonet clamping part and the roof antenna,
• the fastening cable element can be operated from below or from within the body,
• the fastening cable element can be operated from above or from outside the body,
• the fastening element is designed as a screw,
• the thread of the screw has its mating thread in the bayonet clamping part and the screw is rotatably mounted in the roof antenna,
• the thread of the screw has its mating thread in the roof antenna, usually in its base plate, and is rotatably mounted in the bayonet clamping part,
• the screw is designed as a stud screw with a right-left thread and has its mating thread in the roof antenna and in the bayonet clamping part,
• the actuation of the fastening element is possible from above or from above the body surface and / or from below or below the body surface.

Figure 10 finally shows a roof antenna according to the prior art.

List of reference symbols

1.

Roof antenna

2.

Base plate

2.1

Sealing lip

3.

Antenna hood

4th

Clamping part

4.1

attack

4.2

contour

4.3

Cutting edge

5.

Cones

6th

inner thread

7th

inner thread

8th.

screw

9.

nose

10.

roof

11.

Roof cutout

12th

Recess

13th

Antenna radiator

14th

Antenna radiator

15th

GPS module

16.

Connection antenna rod

17th

cable

18th

cable

19th

cable

Claims (12)

1. Body of a vehicle with a roof antenna (1), the roof antenna having a base plate (2) for receiving antenna elements (13, 14, 15, 16) which are covered by an antenna hood (3) that can be connected to the base plate (2), wherein the roof antenna (1) can be mounted on a roof (10), having a roof cutout (11), of the vehicle by means of connecting means, characterized in that the connecting means are formed as a clamping part (4) that can be moved axially with respect to the base plate (2) and rotatably with respect to the roof (10) below the base plate (2) of the roof antenna (1) and the roof (10) and are arranged below the roof (10) after being mounted, wherein the clamping part (4) has an outer contour, by way of which it can be guided through the cutout (11), and comes to bear against the roof (10) with an overlap when it has been rotated through a defined amount, and the clamping part (4) can be secured to the base plate (2) in a movable manner by means of a screw (8).
2. Body according to Claim 1, characterized in that the clamping part (4) has at least one lug (9) which corresponds to a notch (12) of the roof cutout (11), or vice versa.
3. Body according to either of the preceding claims, characterized in that the clamping part (4) and/or the base plate (2) each have an internal thread (6, 7) into which the screw (8) can be inserted and can be turned in order to be able to change the distance between the base plate (2) and the fastening surface, in particular the roof (10).
4. Body according to one of the preceding claims, characterized in that the clamping part (4) has passage openings for cables (17, 18, 19) or for plug-in connectors that are integrally formed on the base plate (2) .
5. Body according to one of the preceding claims, characterized in that the clamping part (4) has geometric elements such as points, spikes, cutting edges or the like which, during tightening, penetrate a layer of paint on the fastening surface and establish an electrical contact-connection to earth.
6. Body according to one of the preceding claims, characterized in that the clamping part (4) has elements, in particular integrally formed or clipped-on plastic parts or the like, by way of which a deflection, preferably a 90° deflection, from a vertical to a horizontal direction of the cables (17, 18, 19), which arrive from the interior of the roof antenna (1), takes place.
7. Body according to one of the preceding claims, characterized in that the clamping part (4) is configured as a flat clamping plate which can be produced by massive forming, pressure die-casting or the like.
8. Body according to one of the preceding claims, characterized in that the clamping part (4) has rounded and/or bevelled edges.
9. Body according to one of the preceding claims, characterized in that the fastening arrangement has a position coding means which prevents the roof antenna (1) from being able to be mounted in a position other than the intended position.
10. Body according to Claim 9, characterized in that the shape of the roof cutout (11) and of the clamping part (4) are designed in such a way that insertion of the clamping part (4) is possible only in the intended position and the subsequent relative movement, in particular rotation and/or displacement, is possible only in the intended direction and with the intended angle and/or travel.
11. Body according to Claim 10, characterized in that the fastening arrangement has a preliminary latching function which securely fixes the roof antenna (1) in the correct position before and during securing, in particular tightening, wherein the clamping part (4) or/and the base plate (2) has/have shaped attachments which fit into the roof cutout (11) only in the correct position and latch into the said roof cutout by virtue of pretensioning by means of spring force, for which purpose at least one resilient element is provided.
12. Body according to Claim 11, characterized in that the at least one resilient element is a sheet spring, a plate spring or the like and/or is designed as an elastically resilient region on a sealing substrate of the base plate (2).

Images