EP1525363B1 - Latch for a mobile part of a vehicle body, such as a flap or a door, especially a rear opening - Google Patents

Abstract

The invention relates to a latch which must enable the locked mobile part (10) of a motor vehicle body to be released if necessary by means of a key-actuated closing cylinder (40), in order to manually open the mobile part (10). A handle (21) is provided on the mobile part (10) for the opening of the same (10), said handle being able to pivot in a vertical plane in relation to the vehicle body. When the handle is in its closed position (20.1), it is essentially flush with the vehicle body. In the outwardly pivoted open position, the handle can be gripped by a hand, also enabling the closing cylinder (40) to be accessed by the key. In order to provide the latch with a compact design, the handle (21) is embodied as a carrier for the closing cylinder (40) and forms a pivotable arrangement (20) therewith. A rotary coupling member (45) which can be actuated by the closing cylinder (40) is located on said arrangement (20) and participates in the pivoting movement. A rotary coupling counter-member (35) is located on a defined region of the mobile part (10) and acts on the lock. In the closed position (20.1) of the arrangement (20), the rotary coupling member (45) is decoupled from the rotary coupling counter-member (35), but in the open position, is in a coupling position which enables the transfer of torque.

Description

The invention is directed to a closure of the kind specified in the preamble of claim 1. In this case, a handset relative to a stationary part of the vehicle body is movable and that is normally pivotable between a closed position and an open position of the handset. The closed position of the handset is secured by a lock. Such locks are normally operated electrically and / or by a remote control. In an emergency, however, if the electrical control fails, the lock can be unlocked mechanically via a lock cylinder by means of an associated key.

In these closures, there is also a handle on the handset, which is movable in a vertical plane to the vehicle body. Normally, in the case of rest, the handle is in its Zuklapplage, which is flush with the vehicle body and thereby protects the lock cylinder. To be able to open the handset manually, the handle is transferred to an outstanding Aufklapplage. Then it can be easily grasped behind to open the handset of the vehicle. In an emergency, the lock cylinder for the key is accessible in the Aufklapplage.

In the known closure of this type ( DE 100 45 224 A1 ), which corresponds to the preamble of claim 1, the lock cylinder is fixedly integrated in a housing which is installed in a tailgate of a vehicle. The housing opening is normally closed by a cover which is hingedly movable about an axis parallel to the plane of the cover. In its Aufklapplage the cover acts as a handle for opening the tailgate. The stationary lock cylinder is oriented with its cylinder axis in the direction of the housing opening. The output of the dormant lock cylinder is permanently coupled to the lock, in order to transfer in an emergency by the inserted key the lock between its safety position and arming position. For safety reasons, the lock cylinder must have a considerable cylinder length in order to position the required plurality of tumblers axially next to one another. This brings an undesirably large depth in the already very tight space in the area of a tailgate.

In a known closure of another kind ( DE 199 29 243 ) is the keyhole of the lock cylinder behind a cover of a provided on the handset emblem of the vehicle. In order to make the lock cylinder accessible to the key, only the cover is pivoted or moved. The emblem does not serve as a handle to open the handset. The lock cylinder rests in the handset behind the movable cover.

There is a lid lock for a trunk lid known ( DE 802 046 ) consists of two directly adjacent lock parts, which overlap the gap between the movable trunk lid and the stationary Kofferrau.mverkleidung. The seated on the panel lock part has a spring-loaded latch, which engages over a bottom plate of the adjacent lock part sitting on the boot lid. At the bottom plate of the actual handle is pivotally mounted and spring-loaded in the direction of its investment position. Although a lock cylinder is mitbeweglich with the handle, but sits its entrance opening for the lock cylinder on the show side of the handle. As a result, the lock cylinder is accessible both in the investment position as well as in the storage position of the handle of the key and therefore always unprotected.

The lock cylinder can therefore easily become dirty and thus unusable. In addition, the lock cylinder only serves to secure the handle in its abutment position on the bottom plate. An emergency situation is not planned. In order to pivot the handle in the Abrageposition, the lock cylinder must be operated by the key. During this pivoting movement, the bolt of the adjacent lock part is pressed far enough away from a profile edge on the handle of the cover-side lock part so that it releases the bottom plate.

In a closure according to the not previously published DE 101 23 939 A1 The cover does not serve as a handle for opening a handset, but as a rocker switch for electromotive opening the handset. On the back of the cover, a lock cylinder is arranged, which points in the Zuklappposition of the cover into the interior of the handset. The cover is pivotally mounted in its center about a horizontal axis and is held by a spring in its cover. The cover can be transferred from its cover in three different pivot positions. If the cover acting as a rocker switch is pivoted by a small angle of 15 °, a microswitch is actuated, which opens the lock electronically. In this first pivot position of the rear lock cylinder is not accessible by the key. In an emergency, the cover can be manually pivoted over a larger angle of about 45 ° until a located at the output of the lock cylinder rotary latch abuts a resting nose in the handset. But then the key can be inserted into the lock cylinder, whereby the rotary latch is pivoted away from the nose and a mandrel on the lock cylinder in alignment with an axially movable pin in the interior of the handset comes into alignment. Then, the cover can be manually transferred further into a third pivot position, wherein the mandrel hits the pin and presses it axially. As a result, an unlocking device is mechanically actuated in the interior of the vehicle.

The invention has for its object to develop a reliable closure of the type mentioned in the preamble of claim 1, which is designed to save space in its depth. This is inventively achieved by the measures mentioned in claim 1, which has the following special significance.

In the invention, the handle with the lock cylinder forms a jointly movable in the folding movement combination having a first member of a rotary joint. In the Aufklapplage the combination of the rear lock cylinder is accessible to the key and when turning the lock cylinder by the key, the member is rotated, which is why it should be called "Drebkupplungsglied" below. A second counter member for this rotary joint is arranged at a defined location of the handset and should, upon rotation, act by its rotational movement on the lock. This second counterpart is to be referred to below as a "rotary coupling counterpart".

Normally, in Zuklapplage the combination, the combination of the rotary coupling member is disconnected from the rotary coupling counterpart, and therefore, apart from the inaccessibility of the lock cylinder for the key, a torque between the lock cylinder and the counter element basically can not be transferred. Because the rotary joint mating member is disposed in the same vertical plane in which the rotary coupling member moves during the folding movement of the combination, in the last phase of the unfolding movement, the coupling portion of that member engages the mating coupling portion of the mating member, for which reason a key turn torque transmission the lock cylinder is possible. Therefore, in the Aufklapplage by transferring the torque, the lock can be transferred from its armed position to its secure position or vice versa.

In the invention, therefore, the lock cylinder in the Zuklapplage on the one hand and in the Aufklapplage on the other hand takes two different positions in the handset of the vehicle body. In the Zuklapplage the lock cylinder can advantageously extend parallel to the handle, so may extend substantially in the direction of the course of the vehicle body. The available large height of the handle can be used to arrange a lock cylinder. In the direction of the handle can be arranged numerous tumblers in the lock cylinder, whereby the amount of permutations is increased. The lock cylinder and keys can have a very extensive code that the Breakage security of such closure improved. In the depth direction of the handset of such closure comes out with a surprisingly small depth, which corresponds only to the cross section of the lock cylinder. Because the lock cylinder is always oriented in the direction of travel of the handle, it is accessible to the key even at relatively small Aufklappwinkel. In the Aufklapplage the locking cylinder of the combination protrudes considerably over the vehicle body.

Fig. 1

die Draufsicht auf ein Teilstück einer als Mobilteil fungierenden Heckklappe einer Fahrzeugkarosserie mit Blick auf die Handhabe, wenn sich diese in ihrer Zuklapplage befindet,

Fig. 2,

vor dem Einbau in die strichpunktiert angedeutete Heckklappe, den Verschluss von Fig. 1 mit Blick auf seine Rückseite,

Fig. 3

einen Längsschnitt durch den Verschluss längs der Schnittlinie III - III von Fig. 1,

Fig. 4 + 5

zwei Querschnitte durch den in Fig. 2 gezeigten Verschluss längs der dortigen Schnittlinien IV - IV bzw. V - V,

Fig. 6

eine perspektivische Rückansicht des in Fig. 2 gezeigten Verschlusses, wobei das Anfangsstück eines Bowdenzuges gezeigt ist, der Bestandteil einer zum nicht näher gezeigten Schloss der Heckklappe führenden Gliederkette ist,

Fig. 7

zeigt eine Seitenansicht eines Ausführungsbeispiels des erfindungsgemäßen Verschlusses in Blickrichtung des Pfeiles VII von Fig. 2 und

Fig.8

einen der Fig. 3 entsprechenden Längsschnitt durch den Verschluss, wenn sich die Handhabe in ihrer Aufklapplage befindet und der mit ihr klappbewegliche Schließzylinder für einen Schlüssel zugänglich ist.

Further measures and advantages of the invention will become apparent from the dependent claims, the following description and the drawings. In the drawings, the invention is shown in one embodiment. Show it:

Fig. 1

the top view of a portion of a function as a tailgate tailgate of a vehicle body with a view of the handle when it is in its Zuklapplage

2,

prior to installation in the dash-dotted line indicated tailgate, the closure of Fig. 1 facing his back,

Fig. 3

a longitudinal section through the closure along the section line III - III of Fig. 1 .

Fig. 4 + 5

two cross sections through the in Fig. 2 shown closure along the section lines IV - IV and V - V,

Fig. 6

a perspective rear view of the in Fig. 2 shown closure, wherein the initial part of a Bowden cable is shown, which is part of a chain of links leading to the lock of the tailgate, not shown in detail,

Fig. 7

shows a side view of an embodiment of the closure according to the invention in the direction of arrow VII of Fig. 2 and

Figure 8

one of the Fig. 3 corresponding longitudinal section through the closure when the handle is in its Aufklapplage and accessible with her folding lock cylinder for a key.

In the drawings, only a fragment of serving as a handset of the body tailgate 10 is shown. In the tailgate 10, a unit 11 is fixed, consisting of a cup-shaped housing 30 and a housing opening 31 normally closing handle 21. Fastening means 39 are made of Fig. 2 to recognize. How very good Fig. 4 shows, the housing 30 is traversed by a dash-dotted lines indicated axis 15, via which the handle 21 hingedly movable in the housing in the direction of the arrow 25 of Fig. 3 is stored. This axis 15 will be referred to hereinafter as "folding axis". The folding movement takes place in the drawing planes of Fig. 3 and 8th , It follows that this folding movement 25 takes place in a vertical plane to the course of the vehicle body of the tailgate 10 at the location of the unit 11.

Out Fig. 4 shows that the handle 21 is formed as a two-ply plate; it includes a base plate 22 and a curved ornamental plate 23. The ornamental plate 23 carries a company emblem 24. Firmly connected to the handle 21 is a lock cylinder 40, which therefore participates in the folding movement 25 of the handle 21. This assembly 20 from the handle 21 and the lock cylinder 40 is to be referred to below, as already mentioned, "combination". The lock cylinder 40 is integrated into the material of the handle 21 and is located on its in Fig. 4 with 26 marked back. A cylinder housing 42 serves to receive the lock cylinder 40 and is formed integrally with the base plate 22 of the handle 21. The dash-dotted in Fig. 3 illustrated cylinder axis 44 extends substantially parallel to the plane of the base plate 22 and lies in that vertical plane in which the folding movement 25 of the combination 20 takes place. In the Fig. 1 to 7 the collapse situation of the combination 20 is shown what is in Fig. 3 is illustrated by the auxiliary line 20.1. In this case, the combination 20 is on the show side substantially flush with the body of the tailgate 10. The lock cylinder 20 is protected inside the housing.

The output 43 of the lock cylinder is generally non-rotatably connected to a first member 45 of a rotary coupling via a plurality of per se known members comprehensive one-way clutch 46, whose end-side coupling point consists of the interior 47 of a fork. This rotary coupling member 45 is also part of the combination 20 and is moved in their folding movement 25 with. It shall be referred to as "movable rotary coupling member 45".

This movable rotary coupling member 45 is in the housing 30 associated with a "stationary rotary coupling counter-member 35", which has a flat profile piece 37 as a coupling point. In the coupling case, the flat profile piece 37 fits into the fork interior 47 of the movable rotary coupling member 45. The stationary rotary coupling counter member 35 is rotatably mounted at a defined position of the housing wall 33 with a pin 36. On the outside of the housing 31 via an intermediate member 34 and a return spring 38 rotatably connected to a driver 16. At the driver 16 engages a lock of the tailgate 10 leading link chain 50, which consists in the present case of a Bowden cable. The strand 51 of the Bowden cable is, as at 17 in Fig. 6 can be seen suspended in an end claw of the driver 16. The jacket 52 of the Bowden cable 50 is attached to the housing 30 at 18. When the lock is in its secured position, the driver 16 takes the in Fig. 6 drawn drawn starting position, which is illustrated there by the auxiliary line 16.1. The aforementioned return spring 38 determines this starting position 16.1. Dash-dotted in Fig. 6 is also denoted by 16.2 actuating position of the driver 16. If the driver 16 is pivoted into this operating position 16.2, then the strand 51 of the Bowden cable is taken and unlocked the lock of the tailgate 10. Then the tailgate 10 can be opened as in Fig. 8 will be described in more detail.

In the Zuklapplage 20.1 of the combination 20, the described movement of the driver 16 is not possible. Because the movable rotary coupling member 45 with its cylinder axis 44 from the axis of rotation of the stationary counter-member 35 around a Fig. 3 removable angular amount 19 is spaced. Incidentally, would be one Rotary movement of the lock cylinder 40 is not possible because the handle 21 of the combination 20 makes the housing interior 32 inaccessible. But that changes when the combination in their out Fig. 8 apparent Aufklapplage 20.2 is transferred. Then, the cylinder axis 44 is aligned with the axis of the stationary counterpart 35 and therefore the movable rotary coupling member 45 with the counter-member 35 in rotary engagement. The flat profile piece 37 of the counter member 35 is located in the fork interior 47 of the movable rotary coupling member 45. In addition, the lock cylinder 40 is in the Aufklapplage 20.2 in a position where the keyhole is conveniently accessible to the key 41. If the correct key 41 is inserted in the lock cylinder 40, then a rotation leads to the described movement of the driver 60, which has an effect on the lock. A torque is transmitted between the lock cylinder and the cam 16 leading to the lock. By rotation of the inserted key 41, the lock can be adjusted between its safety position and arming position in an emergency.

The in Fig. 8 Marked with 19 hinged angle is determined by a stop 28 on the combination 20 and a counter-stop 48 on the housing 30.

Part of the combination 20 is namely how Fig. 3 shows, still a protective sleeve 27, 29, which is also integrally formed on the base plate 22 and has a special sleeve profile. The sleeve has a narrow portion 27 which receives in the Zuklapplage 20.1 serving for coupling flat profile piece 37 from the stationary rotary coupling counter-member 35. This narrow sleeve portion 27 is particularly good Fig. 5 to recognize. The dimensions of this narrow sleeve portion 27 are chosen so that the flat profile piece 37 with a slight clearance just fits between them. This results in a double guiding effect. The flat profile piece 37 of the counter member 35 is secured in a defined rotational position. In addition, even during the folding movement 25, this rotational position of the stationary rotary coupling counter-member 35 is maintained until the flat profile piece 37 in the fork interior 47 of the movable rotary coupling member 45 retracted. This rotary coupling member 45 is located in an extended region 29 of the protective sleeve.

Through the protective sleeve 27, 29 manipulation of the counter member 35 is excluded not only in each phase of the folding movement 25, but applies both to the Zuklapplage 20.1 of Fig. 3 , as well as for the Aufklapplage 20.2 of Fig. 8 , In Fig. 8 is the two engaging members and mating members 35, 45 in the wide sleeve portion 29th

The narrow sleeve portion 27 has on its side facing in the direction of the folding movement a flattening 28, which justifies the above-mentioned stop for the housing-side counter stop 48. This counter-attack 48 arises as Fig. 3 illustrated by a stepped profile 48, 49 in the housing wall 33. The counter-stop 48 is as it were the tread surface of this stage. But the impact surface 49 of the stage also has the function in the Zuklapplage 20.1 to act as a stop for the combination 20. This purpose is preferably a buffer 14 made of elastomeric material, which is anchored in a bore of this abutment surface 49 and cooperates with a suitable flattening 54 of the cylinder housing 42.

As Fig. 4 illustrated, the cylinder axis 44 is set against the perpendicular thereto folding axis 15 into the housing interior 32. The folding axis 15 is otherwise generated by two separate axle pins 12, 13, which consist of cap screws here. The two cap screws 12, 13 are passed from opposite sides 61, 62 of the assembly 11 through housing bores 53, where they pass through bearing sleeves 55, 56. The threaded parts of the two cap screws 12, 13 are anchored in threaded holes 57. The ends of the two tightened screws 12, 13 are at a distance 58 to each other. This spacing region 58 can be used for the arrangement of the lock cylinder 40. If the screws 12, 13 are made of steel pins, forcible tearing out is largely prevented.

As seen from the side view of Fig. 7 can be seen, located on the outside of the housing 30, a working arm 59 which cooperates with a micro-switch 60.

How out Fig. 4 it can be seen, the arm 59 is integrally formed with the one bearing sleeve 56. By tightening the cap screw 12, the rotationally fixed connection between the combination 20 and the arm 59 comes about.

Out Fig. 5 shows that pin 63, which are integrally formed with the base plate 22 and project on both sides of the cylinder housing 42, serve to attach two leg springs 64. The torsion springs 64 are based on one end of the housing and the other on the back 26 of the combination 20 and ensure with their spring force that the combination 20 normally in its Zuklapplage 20.1 of Fig. 3 is held.

List of reference numbers:

10

Body of the tailgate, handset

11

Assembly from 20, 30

12

first axle pin, cap screw ( Fig. 4 )

13

second axle pin, cap screw ( Fig. 4 )

14

Buffer to 49 ( Fig. 3 )

15

Axle, folding axis ( Fig. 4 )

16

takeaway

16.1

Starting position of 16 ( Fig. 6 )

16.2

Operating position of 16 ( Fig. 6 )

17

Hanger for 51 to 14 ( Fig. 6 )

18

Mounting from 52 to 30 ( Fig. 6 )

19

folding angle

20

combination

20.1

Zuklapplage of 20

20.2

Aufklapplage of 20

21

Handle of 20

22

Base plate of 21

23

Ornamental plate of 20

24

Company emblem on 23

25

Arrow of the folding movement of 20

26

Back of 20

27

Protective sleeve, narrow sleeve area

28

Flattening of 27, stop ( Fig. 3 )

29

Protective sleeve, wide sleeve area

30

casing

31

housing opening

32

housing interior

33

housing wall

34

intermediary

35

stationary rotary coupling counterpart

36

Bearing journals of 35

37

Coupling point of 35, flat profile piece ( Fig. 3 )

38

Return spring for 45 ( Fig. 3 )

39

Fasteners for 30 to 11 ( Fig. 2 )

40

lock cylinder

41

Key for 40

42

cylinder housing

43

Output of 40

44

cylinder axis

45

movable rotary coupling member at 43

46

Overrunning clutch between 40, 45

47

Coupling point of 45, fork interior ( Fig. 3 )

48

Tread of the level of 30, counter-attack

49

Shock of the level of 30

50

Link chain, Bowden cable

51

Strand of 50

52

Coat of 50

53

Housing bore for 12, 13 ( Fig. 4 )

54

Flattening of 42 ( Fig. 3 )

55

first bearing sleeve for 13 ( Fig. 4 )

56

second bearing sleeve for 12 ( Fig. 4 )

57

Thread hole in 22 for 12, 13 ( Fig. 4 )

58

Distance between 12, 13 ( Fig. 4 )

59

Working arm ( Fig. 4 )

60

Microswitch ( Fig. 7 )

61

first page of 11 for 12 ( Fig. 4 )

62

second page of 11 for 13 ( Fig. 4 )

63

Tenon for 64 ( Fig. 5 )

64

Leg spring ( Fig. 5 )

Claims (23)

1. Latch for a mobile part (10) of a vehicle body, such as a flap or door, especially a rear opening,
   with the mobile part (10) being lockable, by means of a lock, in a closed position with respect to a stationery part of the vehicle body,
   with a locking cylinder (40) with a key (41) that can be inserted therein, with the locking cylinder (40) rotating when the key is rotated and the lock in emergency being moved from an unlocking position to a locking position,
   with a handle (21) that can be mounted on a mobile part (10), which in the mounted state can be folded in a plane vertical to the vehicle body
   and from a folded closed position (20.1) flush with the vehicle body where the locking cylinder (40) is protected,
   being moveable to an extended folded open position (20.2) in which the handle (21) can be manually gripped at the back to open the mobile part (10),
   with the key (41) for the locking cylinder (40) being accessible in the folded open position (20.2) and rotatable in emergency, in order to move the lock between the locking position and the unlocking position,
   characterized in that
   the locking cylinder (40) is arranged on the back (6) of the handle (21) and together with said handle (21) forms a combined assembly (20) that can be moved between the folded closed position (20.1) and the folded open position (20.2)
   with the locking cylinder (40) having the combined assembly (20) in the inside of the mobile part (10) in the folded closed position (20.1),
   and that the element (45), designated as a rotary coupling-element, that rotates with the key rotation of the locking cylinder (40) is arranged on the combined assembly (20),
   and that in the assembled state a stationery opposing element (35), that acts on the lock and is designated a rotary coupling-opposing element, is arranged at a defined position of the mobile part (10),
   which although in the folded closed state (20.1) the combined assembly (20) is decoupled from the rotary decoupling element (45) it is rotationally engaged with this element (45) when the combined assembly (20) is in the folded open position (20.2)
   that the stationery rotary coupling opposing element (35) is arranged in the same vertical plane in which the rotary coupling element (45) moves during a folding open movement (25) of the combined assembly (20),
   and that during the final phase of the folding open movement (25) of the combined assembly (20) the rotary coupling element (45), that has a coupling position (47), moves its coupling position (47) into an opposing coupling position (37) of the rotary coupling opposing element (35).
2. Latch according to Claim 1, characterized in that the locking cylinder (40) is integrated into the material of the handle (21, 22) of the folding combined assembly (20).
3. Latch according to Claim 1 or 2, characterized in that the axle (44) of the locking cylinder (40) is arranged in that vertical plane in which the folding movement (25) of the combined assembly (20) takes place.
4. Latch according to one of Claims 1 to 3, characterized in that a cylinder housing (42) that serves to accommodate the locking cylinder (40) is designed as a single piece with the handle (21, 22) of the combined assembly (20).
5. Latch according to one of Claims 1 to 4, characterized in that the handle (21) consists of a flat and/or curved plate (22, 23)
   and that the axle (44) of the locking cylinder (40) runs essentially parallel to the plane of the plate.
6. Latch according to one of Claims 1 to 5, characterized in that the handle (21) of the combined assembly (20) consists of a two-layered plate (22, 23),
   i.e. a back base plate (22) having the mounting means (12, 13, 57) for the folding movement (25) and a decorative plate (23) on the visible side.
7. Latch according to one of Claims 1 to 6, characterized in that the handle (21) of the combined assembly (20) has a company emblem (24) on the visible side.
8. Latch according to one of Claims 1 to 7, characterized in that a protective sleeve (27, 28) is arranged on the back (26) of the handle (21),
   which encloses the circumference of the coupling element (45), that moves with it, and is seated on the combined assembly (20)
   and that the protective sleeve (27, 29) in each phase of the folding movement (25) adopts at least the coupling position (37) of the stationery opposing coupling element (35) and protects against manipulation.
9. Latch according to Claim 8, characterized in that the stationery opposing coupling element (35) is also the guiding means for the protective sleeve (27) during the folding movement (25) of the combined assembly (20).
10. Latch according to Claim 8 or 9, characterized in that the protective sleeve (27, 29) is formed as a single piece with a handle (21, 22) of the combined assembly (20).
11. Latch according to one of Claims 8 to 10, with a housing (30) having an opening wherein the handle (21) is folding mounted (25) by means of an axle, designated as a folding axle (15) that traverses the housing (30),
    with the handle (21) in the folded closed position (20.1) closing the housing opening (31) and with the housing (30) as a whole forming a unit (11) to be attached in the mobile part (10) of the vehicle body,
    characterized in that
    the stationery rotary coupling opposing element (35) is rotationally mounted (36) at a defined position on the housing wall (33), its coupling position (37) pointing to the inside of the housing (32) and aligned against the combined assembly (20)
    and that a carrier (16), that rotates with the rotary coupling opposing element (35) is located on the outside of the housing (30) and can be connected to the lock by a further element (50).
12. Latch according to Claim 11, with a stop (28) on the handle (21) and with an opposing stop (48) on the housing (30),
    with the moveable stop (28) moving against the stationery opposing stop (48) in the folded open position (20.2) and limiting the opening angle (19),
    characterized in that
    the protective sleeve (27) forms the stop (28) in the area pointing in the direction of the flap movement (25).
13. Latch according to Claim 12, characterized in that the housing wall (33) has a step (48, 49) pointing towards the interior of the housing (32),
    with the striking face (48) whereof aligned towards the stationery opposing coupling element (35) acting as an opposing stop interacts with the protective sleeve (27) and limits the opening position (20.2) of the combined assembly (20).
14. Latch according to Claim 13, characterized in that the impact surface (49), aligned towards the housing opening (31), of the housing step (48, 49) serves as a stop for the folded closed position (20.1) of the combined assembly (20).
15. Latch according to Claim 14, characterized in that the impact surface (49), is provided with a resilient buffer (14).
16. Latch according to one of Claims 11 to 15, characterized in that the folding axle (15) of the combined assembly (20) is created by two separate axle pins (12, 13),
    that from opposite outer sides (61, 62) are first inserted into two holes (53) of the housing (30) and then into two blind holes (57) of the combined assembly (20).
17. Latch according to Claim 16, characterized in that the pin ends pointing towards each other of the two assembled axle pins (12, 13) are spaced apart from each other (58)
    and that the locking cylinder (40) is arranged in this clearance area (58).
18. Latch according to Claim 16 or 17, characterized in that the cylinder axle (44) runs from the locking cylinder (40) vertically to the folding axle (15) but is set back further in the housing interior (32) relative to the folding axle (15).
19. Latch according to one of Claims 16 to 18, characterized in that the axle pins consists of two headed screws (12, 13) which pass through two bearing sleeves (56, 55) located in the area of the two housing holes (53) and are anchored in two threaded holes (57) of the combined assembly (20).
20. Latch according to one of Claims 11 to 19, characterized in that a working arm (59) is located on the outside of the housing (30), with the working arm (59) being connected, rotationally fixed, to the combined assembly (20) and swinging with the folding movement (25)
    and that the working arm (59) acts on other functional parts, such as microswitches (60) and/or damping elements, during its swinging movement.
21. Latch according to Claim 20, characterized in that the rotationally fixed connection between the working arm (59) and the combined assembly (20) is achieved by means of a screw (12) that determines the folding axis (15).
22. Latch according to Claim 20 or 21, characterized in that the working arm (59) is seated, rotationally fixed, on the bearing sleeve (56) and forms an arm-sleeve unit (59, 56)
    and that the arm-sleeve unit (59, 56) is anchored in the combined assembly (20) by means of a screw (12) that passes through its mounting sleeve (56).
23. Latch according to one of Claims 1 to 22, characterized in that a free-running coupling (46) that moves with the combined assembly (20), is arranged between the locking cylinder (40) and the rotary coupling element (45)
    which (46) on a forceful rotation of the locking cylinder (40) releases a rotationally fixed connection between the locking cylinder (40) and the rotary coupling element (45).

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