DE102008049272B4 - Wiper blade - Google Patents

Abstract

Wiper blade (3) for windshield wiper systems for vehicles, with a wiper blade adapter (4a, 4b, 4c) provided on the upper side (3.2) of the wiper blade, which can be releasably fastened in a receptacle (2) of a wiper arm (1) by being pushed in and then locked, whereby for locking on the wiper blade adapter (4a, 4b, 4c) at least one first locking (16) cooperating with a counter locking (17) on a wiper arm top side (3.2) is provided, the wiper blade adapter (4a, 4b, 4c) in addition to the at least one first Detent (16) is designed with at least one second detent (21, 26) for interaction with a counter detent (20, 22) provided on the underside of the wiper arm, characterized in that the at least one first detent (16) and the at least one second detent ( 21, 26) are operatively connected in such a way that at least when the latching connection is released, the release of one latch also causes the other latch to be released.

Description

The invention relates to a wiper blade with the features of the preamble of claim 1.

Wiper blades for windshield wiper systems are known in various designs. In particular, wiper blades with a wiper blade adapter ( EP 1 403 156 A ), which can be pushed into a recess provided on the wiper arm and open towards the free end of the wiper arm and can be locked there by latching. For latching, at least one resilient latch is provided on an adapter part, which can be pushed into the wiper arm-side receptacle with its rear side first in one joining direction and is then positively received there, which engages behind a counter latch formed on the wiper arm when the wiper blade is attached to the wiper arm.

In a known wiper blade design, the resilient detent is provided on the top of the wiper blade adapter, specifically for locking in an opening on the top of the wiper arm that forms the counter-detent. This has i.a. the advantage that the correct locking of the wiper blade adapter on the wiper arm can also be easily checked optically and, furthermore, a comfortable release of the locking connection with it of the wiper blade from the wiper arm is possible. The detent is formed by a projection on a spring or detent tongue, which protrudes beyond the rear of the wiper blade adapter part.

From the DE 102 12 441 A1 a wiper blade with the features of the preamble of claim 1 is known. The known wiper blade is characterized in that, in addition to at least one first catch, at least one second catch is provided which is designed to interact with a counter catch provided on the underside of the wiper arm. It is essential that the two notches are designed or arranged independently of one another. This means that in order to release the wiper blade from the wiper arm, both latching connections have to be released simultaneously. This is particularly difficult when the actuating elements of the latching connections are difficult to see or access.

Wiper blade designs are also known ( WO 2007/033827 A1 ), in each of which a latch is provided at the rear end of the wiper blade adapter which, after the wiper blade adapter has been pushed into the receptacle, engages in counter-latches that are formed on the underside of the wiper arm. The disadvantage here is, among other things, that the wiper blade is secured on the wiper arm only by a single detent or detent or spring tongue, and that in the event of a defect or failure of this single detent or detent tongue, for example, due to aging, damage, including improper use and / or improper assembly can lead to the wiper blade becoming detached from the wiper arm.

The object of the invention is to provide a wiper blade which, while maintaining simplified assembly, ensures a reliable and secure connection to the wiper arm by inserting the wiper blade adapter into a receptacle on the wiper arm side. To solve this problem, a wiper blade is designed in accordance with patent claim 1.

In the wiper blade according to the invention according to the teaching of claim 1, it is provided that the two catches are functionally connected to one another, so that releasing a first catch also causes the second catch to be released.

Developments, advantages and possible applications of the invention also emerge from the following description of exemplary embodiments and from the figures. In this case, all of the features described and / or shown in the figures, individually or in any combination, are fundamentally the subject matter of the invention, regardless of their summary in the claims or their reference back. The content of the claims is also made part of the description.

• 1 in vereinfachter perspektivischer Explosionsdarstellung eine Teilansicht eines Wischarms einer Scheibenwischanlage im Bereich seines wischblattseitigen Wischarmendes, ein Wischblatt in Teildarstellung sowie zwei Adapterteile eines Wischblattadapters zum Verbindung des Wischblattes mit dem Wischarm;
• 2 in vereinfachter Darstellung einen Schnitt durch das wischblattseitige Wischarmende des Wischarms der 1;
• 3 eine Unteransicht des wischblattseitigen Wischarmendes zusammen mit einem in dieses Ende eingesetzten und verrasteten Adapterteil;
• 4 eine Darstellung der 3 in einer perspektivischen Ansicht;
• 5 - 7 das wischarmseitige Adapterteil des Wischblattadapters in verschiedenen perspektivischen Ansichten sowie in Unteransicht;
• 8 das wischblattseitige Ende des Wischarms, zusammen mit in dieses Ende eingesetztem Wischblattadapter bei einer weiteren Ausführung der Erfindung;
• 9 und 10 jeweils in perspektivischer Teildarstellung das in das wischblattseitige Wischarmende eingesetzte und dort verrastete wischarmseitige Adapterteil der 8;
• 11 das wischarmseitige Adapterteil der 8 - 10 in perspektivischer Einzeldarstellung und in Rückansicht;
• 12 in perspektivischer Teildarstellung das in das wischblattseitige Wischarmende eingesetzte und dort verrastete wischarmseitige Adapterteil bei einer weiteren Ausführungsform der Erfindung;
• 13 das wischarmseitige Adapterteil der 12 in perspektivischer Einzeldarstellung und in Rückansicht;
• 14 in vereinfachter Darstellung einen Schnitt durch den Wischarm und durch ein im Wischarm durch Verrasten gehaltenes wischarmseitiges Adapterteil bei einer weiteren Ausführungsform der Erfindung.

The invention is explained in more detail below with reference to the figures using exemplary embodiments. Show it:

• 1 a simplified perspective exploded view of a partial view of a wiper arm of a windshield wiper system in the area of its wiper arm end on the wiper blade side, a wiper blade in partial representation and two adapter parts of a wiper blade adapter for connecting the wiper blade to the wiper arm;
• 2 a simplified representation of a section through the wiper arm end of the wiper arm on the wiper blade side 1 ;
• 3 a bottom view of the wiper arm end on the wiper blade side together with an adapter part inserted and latched into this end;
• 4th a representation of the 3 in a perspective view;
• 5 - 7th the adapter part of the wiper blade adapter on the wiper arm side in various perspective views and in a bottom view;
• 8th the end of the wiper arm on the wiper blade side, together with the wiper blade adapter inserted into this end in a further embodiment of the invention;
• 9 and 10 each in a perspective partial representation of the wiper arm-side adapter part of the wiper arm end inserted into the wiper-blade-side end and latched there 8th ;
• 11 the adapter part on the wiper arm side of 8th - 10 in perspective individual representation and in rear view;
• 12 in a perspective partial illustration of the wiper arm-side adapter part inserted into the wiper arm end on the wiper blade side and latched there in a further embodiment of the invention;
• 13 the adapter part on the wiper arm side of 12 in perspective individual representation and in rear view;
• 14th in a simplified representation a section through the wiper arm and through an adapter part on the wiper arm side held in the wiper arm by latching in a further embodiment of the invention.

In the figures, 1 is a wiper arm of a windshield wiper system, otherwise not shown, for vehicle windscreens. The wiper arm 1 is connected at its end, not shown in the figures, in a manner known per se via a wiper arm joint to a wiper shaft, which is driven by a wiper drive for a reciprocating pivoting movement of the wiper arm 1 is driven in reverse. At the wiper arm end on the wiper blade side 1.1 is the wiper arm 1 with a recording 2 for removable attachment of a flat wiper blade 3 formed using a two-part wiper blade adapter 4th . This consists of the adapter part on the wiper arm side 4.1 which in the recording 2 from the free end of the wiper arm 1 ago in a joining direction A and with its rear end insertable and in this recording 2 can be locked by latching in the manner described in more detail below. The wiper blade adapter 4th still consists of the adapter part 4.2 , which is attached to the upper side of the wiper blade in the middle of the wiper blade or approximately in the middle of the wiper blade.

The wiper blade 3 In the embodiment shown, it is designed as a flat wiper blade and forms on its underside the wiper lip that rests against the vehicle window during the wiping process 3.1 . On the top of the wiper blade 3.2 is the wiper blade 3 at 6th shaped like a spoiler. With 5 denotes two flat spring rails, each extending in the longitudinal direction of the wiper blade.

The two adapter parts 4.1 and 4.2 are about one of the adapter openings 7th and 8th cross-section, not shown, articulated joint bolts, so that the in a recess 9 of the adapter part 4.1 recorded adapter part 4.2 and with it the wiper blade 3 by a reduced angular transmission compared to the adapter part 4.1 or opposite the wiper arm 1 are pivotable.

To form the free end of the wiper arm 1 open recording 2 is the wiper arm 1 at the end on the wiper blade side 1.1 as one to the underside of the wiper arm and with the wiper blade installed 3 running towards this open US profile, with two legs 10 and 11 and a yoke section connecting the legs 12 on the top of the wiper arm.

Like in particular the 1 shows, this U-profile sits at least in one of the recording 2 or to the end 1.1 subsequent section 1.2 of the wiper arm 1 continue, in such a way that in the area of this subsection 1.2 on which the wiper arm 1 is cranked in plan view or has a slightly Z-shaped profile on the leg 10 a leg section running obliquely to this 10a and then a parallel or roughly parallel to the leg 10 running leg section 10b connect. In a similar shape close to the leg 11 a leg section oriented obliquely to this 11a and a leg portion thereon 11b on, which in the illustrated embodiment again parallel or substantially parallel to the leg 11 is oriented. To the yoke section 12 a yoke section closes 12a that of the leg sections 10a , 10b , 11a and 11b formed U-profile of the subsection 1.2 completed. It goes without saying that the wiper arm 1 at least at the end of the wiper arm 1.1 and the subsequent section 1.2 is made in one piece from a suitable material, for example from sheet metal or sheet steel.

In the area of recording 2 are the two legs 10 and 11 Over a partial length of this recording, each with at least one inwardly directed bend 10.1 or. 11.1 provided, in such a way that that in the recording 2 in the joining direction A. inserted adapter part 4.1 with a section 4.1.1 form-fitting in the receptacle 2 is included and here in particular the two bends 10.1 and 11.1 the section 4.1.1 on the wiper blade 3 Engaging behind the underside facing, while another section 4.1.2 of the adapter part 4.1 at the wiper arm 1 attached adapter 4th the opening of the recording 2 also optically closes.

As the 5 - 7th show is the adapter part 4.1 especially in his section 4.1.1 to form the adapter part 4.2 partially receiving opening 9 executed as a U-profile, which to the rear, the section 4.1.2 turned away End of the adapter part 4.1 and is also open to the underside of this adapter part. The adapter part 4.1 consists of two leg sections 13 and 14th and from a yoke section connecting them 15th , the leg sections 13 and 14th as well as the yoke section 15th on the front of the adapter part 4.1 in the section there 4.1.2 pass over. With the adapter installed 4th lie the leg section 13 the inner surface of the leg 10 , the leg section 14th the inner surface of the leg 11 and the yoke section 15th the inner surface of the yoke section 12 immediately adjacent.

After inserting the adapter part 4.1 in the recording 2 is the adapter part 4.1 secured there by double locking. This is on the top of the adapter part 4.1 the yoke section 15th on part of the length as a spring tongue 15.1 formed, which at its free end with one over the top of the adapter part 4.1 above, in the embodiment shown in cross-section square projection or detent 16 is provided. This thus resilient rest 16 is at the recording 2 a counter-rest 17th in the form of a locking opening assigned to the square cross section of the locking 16 accordingly also has a square cross-section and in which the latch 16 engages latching. The spring tongue 15.1 is against its spring action about axes parallel to the top of the adapter part 4.1 resiliently deformable.

To achieve the further locking connection between the wiper blade adapter 3 and the recording 2 is on the back of the adapter part 4.1 the leg section 13 integral with a spring tongue 18th manufactured around axes perpendicular to the top of the adapter part 4.1 Is resiliently deformable and in continuation of the leg 13 via the back of the adapter part 4.1 stands away. The spring tongue is at its free ends 18th with a rest 19th provided in the form of a projection that extends over the leg portion 14th remote side of the spring tongue 18th stands away. When completely in the recording 2 inserted adapter part 4.1 engages behind the resilient rest 19th a counter-rest 20th that, as in particular from the 3 visible at the bottom of the oblique to the thigh 10 extending leg section 10a is formed. The lower edge of the leg section has for this purpose 10a a stepped course in such a way that it is in the area of the transition between the leg 10 and the leg portion 10a in a common plane with the lower edge of the leg 10 then to form the counter-rest 20th or of the edge region forming this counter-latching step in the direction of the upper side of the wiper arm and then in a plane with a compared to the lower edge of the leg 10 reduced distance from the top of the wiper arm.

The particular advantage of the springy rest 19th and the counter-rest 20th The latching connection formed is that this latching connection or its elements and in particular the resilient latching 19th from the rest 16 spatially separated and also in the area of the underside of the wiper arm 1 or the wiper blade adapter 4th and are thereby provided at least largely protected against undesired loosening, for example by functional elements of a car wash, such as cleaning rollers and / or brushes, etc.

For loosening the wiper blade 3 from the wiper arm it is necessary in this embodiment of the invention, both notches 16 and 19th or their locking or spring tongues 15.1 or. 18th to be operated to the locking connection between the wiper blade adapter 4th and the wiper arm 1 or the recording 2 to solve.

The 8th - 11 show a wiper blade adapter 4a which in turn after being inserted into the receptacle 2 of the wiper arm 1 is locked there twice by latching, namely through the one with the opening 17th interacting resilient rest 16 on the top of the adapter part 4a.1 as well as by another resilient rest 21st that with a counter rest 22nd interacts which in the area of inclusion 2 on the underside of the wiper arm 1 is formed, namely by one in a plane transverse or perpendicular to the longitudinal extension L of the receptacle 2 or to the joining direction A. arranged surfaces of the subsection 1.1 facing end of the bend 11.1 on the thigh 11 .

The rest 21st consists essentially of a bridge 23 the one with its upper end with the spring tongue 15.1 is connected or formed on the spring tongue and of the spring tongue 15.1 protrudes downwards. At the bottom is on the bridge 23 one standing away to the side and with the counter-rest 22nd cooperating latching section 24 provided with the wiper blade adapter installed 4a the counter-rest 22nd engages behind latching.

In the embodiment shown, the web is 23 designed like a fork, with a web section 23.1 , the one with the spring tongue 15.1 is connected and with a further shortened web section 23.2 in or on a guided tour 25th of the adapter part 4a.1 is guided to rest between the 21st and the counter-rest 22nd forces acting reliably on the adapter part 4a.1 to transfer and in particular the section 23.1 and the spring tongue 15.1 to relieve of such forces.

Unlocking the from the rest 21st and the counter-rest 22nd The latching connection formed is therefore carried out by moving the latch 21st perpendicular or approximately perpendicular to the top of the adapter part 4a.1 down, against the spring action of the Spring tongue 15.1 around axes parallel to the top of the adapter part 4a.1 is resiliently deformable. The latching section 24 is on its the front of the adapter part 4a.1 facing away from the side beveled so that when inserting the wiper blade adapter 4a in the recording 2 the latching section 24 first on the underside of the bend 11.1 and then at the end of the bend 11.1 behind which the counter-rest 22nd forming surface of the bend 11.1 latched.

The 12 and 13 show a wiper blade adapter 4b with one of the adapter parts 4.1 corresponding adapter part 4b.1 which in turn is in the recording 2 can be locked by latching twice, through the one with the opening 17th interacting rest 16 on the top of the adapter part 4b.1 and by one with the counter-rest 22nd interacting resilient rest 26th . This essentially consists of one on the leg section 14th molded spring tongue 27 around axes perpendicular to the top of the adapter part 4b.1 Is resiliently deformable, and from a latching portion formed on the free end of the spring tongue 28 that at in the recording 2 mounted wiper blade adapter 4b behind the counter-rest 22nd or the surface forming this counter-lock engages.

The latching section 28 is on its the front of the adapter part 4b.1 remote side beveled in such a way that when inserting the adapter part 4b.1 in the recording 2 initially with elastic deformation of the spring tongue 27 on the edge of the bend 11.1 and then at the end of the bend 11.1 behind the counter-rest there 22nd latched.

Unlocking the latch 26th takes place in this embodiment by pivoting the locking portion 28 with elastic deformation of the spring tongue 27 inward, ie in an axial direction perpendicular or approximately perpendicular to the leg section 14th in the direction of the other leg section 13 . To unlock the latch 26th simultaneously with unlocking the catch 16 to reach is at the break 26th or on an extension of the locking section 28 a control surface designed as an inclined surface 29 provided with a wedge or inclined surface 30th at the free end of one on the spring tongue 15.1 molded and over the underside of this spring tongue 15.1 downward protruding web 31 is formed, in such a way that when unlocking the latch 16 , ie when pressing the locking or spring tongue 15.1 down the locking section 28 via the cooperating sloping surfaces 29 and 30th against the action of the spring tongue 26th moved inwards and thereby that of the rest 26th and the counter-rest 22nd formed locking connection is unlocked.

The wiper blade adapter 4th , 4a and 4b or the adapter parts 4.1 , 4a.1 and 4b.1 such as 4.2 are each preferred molded parts made of a suitable material, for example plastic, with all the elements described above, in particular with the notches 16 , 19th , 21st and 26th are made in one piece.

All the embodiments described have in common that the locking of the respective wiper blade adapter 4th , 4a or 4b in the recording 2 occurs twice, namely through the rest 16 on the top of the wiper arm and through the additional detent 19th , 21st or. 26th each with a counter rest 20th or. 22nd cooperates on the underside of the wiper arm, specifically to achieve a high level of security in the fastening of the wiper blade 3 on the wiper arm 1 .

With the wiper blade adapters 4th and 4b the resilient notches 16 , 19th and 26th when locking and releasing the locking connection each moved in axial directions that are oriented perpendicular to each other, ie the locking 16 in an axial direction perpendicular or substantially perpendicular to the top of the wiper blade adapter 4th or. 4b and the rest 19th or. 26th in an axial direction perpendicular or substantially perpendicular to the leg sections 13 and 14th . With the wiper blade adapter 4a the notches are swiveled 16 and 21st when locking and releasing the locking connection in a common axial direction and in the same direction.

In the 14th are again in a simplified representation and in section the end of the wiper arm 1.1 and the recording there 2 with an adapter part inserted into this receptacle 4c.1 shown, which the adapter parts in terms of its function and training 4.1 - 4b.1 corresponds to and also in addition to that in the 14th rest shown 16 which has at least one further detent, which, however, is omitted in this figure for the sake of clarity. The specialty of the adapter part 4c.1 , which in turn together with the adapter part 4.2 the wiper blade adapter 4c for fastening the wiper blade 3 on the wiper arm 1 forms, is that at the rear end of the adapter part 4c.1 at least one resilient tongue 32 is provided, the free end of which is at the wiper arm 1 mounted adapter part 4c.1 resiliently deformed against a contact surface 33 on the wiper arm 1 supported, namely generating a between the adapter part 4c.1 and the wiper arm 1 acting spring force that the adapter part 4c.1 in a direction B opposite to the joining direction A. biases. In this way, when the locking connection is released manually, ie intentionally, the wiper blade is removed 3 from the wiper arm 1 made much easier, in particular by the fact that when the locking connection is manually released by the spring action of the tongue 32 the adapter part 4c.1 is shifted so far that a renewed automatic locking of the notches 16 , 19th , 21st and 26th not possible.

For removing the wiper blade 3 from the wiper arm 1 is therefore initially only necessary to release the locking connection manually. The wiper blade adapter can then be used without further actuation of the catches 16 , 19th , 21st and 26th from the mounting of the wiper arm 1 be led out.

Another important advantage is that with the at least one tongue 32 generated spring force that for the function when locking as well as when releasing the locking connection between the notches 16 , 19th , 21st and 26th and the associated mating notches 17th , 20th , 22nd necessary play when the wiper blade is installed 3 is compensated or ineffective and thus during the wiping operation also noises caused by this play or the movement of the wiper blade adapter 4c relative to the wiper arm 1 are conditional, are effectively avoided.

The tongue 32 is for example on the adapter part 4c.1 molded or an element connected to this adapter part. In principle, there is also the option of using the tongue 32 to be designed in several parts, for example made of plastic with a spring element made of metal that generates or supports the spring force.

It goes without saying that instead of the tongue 32 other spring elements can also be provided which increase the spring force between the mounted wiper blade adapter 4c and the wiper arm 1 generate, for example in the form of at least one on the wiper arm 1 provided spring element, for example in the form of a spring tongue, which with a corresponding counter surface on the wiper blade adapter 4c interacts and in turn generates the spring force oriented against the joining direction A.

The invention was described above using exemplary embodiments. It goes without saying that numerous changes and modifications are possible without departing from the inventive concept on which the invention is based.

List of reference symbols

1

Wiper arm

1.1

Wiper arm end

1.2

Section of the wiper arm 1

2

admission

3

Wiper blade

3.1

Wiper lip

3.2

Wiper blade top

4, 4a, 4b

Wiper blade adapter

4.1, 4a.1, 4b.1, 4c.1

Adapter part

4.1.1, 4.1.2

Section of the adapter part 4.1

4.2

Adapter part

5

Spring rail

.6

spoiler

7.8

opening

9

Recess

10, 11

leg

10a, 10b, 11a, 11b

Leg section

10.1, 11.1

Angulation

12, 12a

Yoke section

13, 14

Leg section

15th

Yoke section

15.1

Spring tongue

16

Rest or lead

17th

Counter catch or catch opening

18th

Spring tongue

19th

Rest or lead

20th

Counter rest

21st

Rest

22nd

Counter rest

23

web

24

Locking section

25th

guide

26th

Rest

27

Spring tongue

28

Locking section

29, 30

Inclined or wedge surface

31

web

32

resilient tongue

33

Contact surface for tongue 32

A.

Joining direction

B.

Direction of spring preload through the tongue 32

L.

Longitudinal extension of the wiper blade adapter 4th , 4a and 4b

Claims (9)

Wiper blade (3) for windshield wiper systems for vehicles, with a wiper blade adapter (4a, 4b, 4c) provided on the upper side of the wiper blade (3.2), which can be releasably fastened in a receptacle (2) of a wiper arm (1) by being pushed in and then locked, wherein for locking on the wiper blade adapter (4a, 4b, 4c) at least one first locking (16) cooperating with a counter locking (17) on a wiper arm top side (3.2) is provided, the wiper blade adapter (4a, 4b, 4c) in addition to the at least one first Detent (16) is designed with at least one second detent (21, 26) for interaction with a counter detent (20, 22) provided on the underside of the wiper arm, characterized in that the at least one first detent (16) and the at least one second detent ( 21, 26) are operatively connected in such a way that at least when the latching connection is released, the release of one latch also causes the other latch to be released. Wiper blade after Claim 1 , characterized in that the wiper blade adapter (4a, 4b, 4c) is in two parts with a first adapter (4a.1, 4b.1, 4c.1) for fastening in the receptacle (2) of the wiper arm (1) and with a second adapter part (4.2), which is articulated to the first adapter part (4a.1, 4b.1, 4c.1) and is provided on the wiper blade (3), and that the catches (16, 21, 26) on the first adapter part ( 4a.1, 4b.1, 4c.1) are provided. Wiper blade after Claim 1 or 2 , characterized in that the wiper blade adapter (4a, 4b) or the first adapter part (4a.1, 4b.1, 4c.1) is designed to be pushed into the wiper arm-side receptacle (2) open to a free end of the wiper arm (1) is. Wiper blade after one of the Claims 1 to 3 , characterized in that the first and second catch (16, 21, 26) each for cooperation with counter catches (17, 20, 22) formed by openings and / or surfaces and / or projections of the wiper arm (1) and / or resilient are trained. Wiper blade after one of the Claims 1 to 4th , characterized in that when the wiper arm (1) is designed as a U or C profile open to the underside of the wiper arm, at least in the region of the receptacle (2) the at least one second detent (21, 26) is designed to interact with a counter detent which is formed by a step-shaped section on a free edge of a leg (10, 10a) of the U- or C-profile or by a projection or an angled portion (10.1, 11.1). Wiper blade after one of the Claims 1 to 5 , characterized in that at least one first detent (16) and the at least second detent (21, 26) for locking and releasing the detent connection in a common axial direction or in different axial directions. are movable. Wiper blade after one of the Claims 1 to 6th , characterized in that the at least one first detent (16) and the at least one second detent (21) have at least one common spring tongue (15.1), which for locking and unlocking with their free end, for example in an axial direction perpendicular or substantially perpendicular to Top of the wiper blade adapter (4a) is pivotable. Wiper blade after one of the Claims 1 to 7th , characterized in that the at least one first catch (16) and the at least one second catch (26) are connected to one another via control surfaces (29, 30). Wiper blade after one of the Claims 1 to 8th , characterized by spring means (32) and / or by a contact surface for spring means (32) for preloading the wiper blade adapter (4c) received in the wiper arm-side receptacle (2) or its adapter part (4c.1) against the latched catches (16, 21, 26) formed locking connection.

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