EP1455040B1 - Lock with assisted final closing for lids or doors of a vehicle, in particular for a glove compartment - Google Patents

Abstract

The lock for vehicle flaps and doors, and especially at the glove compartment, has a lock section (10) operated by a motor (50) which also pulls the flap into the closed position. The locking unit is a spring-loaded hook (21), in a swing mounting on a slide (22) which, together, form a component unit (20) which can move in two different modes in three different positions. The motor acts through a gearing to give the component unit a movement between in and out (20.1) positions and act with a closing pull. The component unit can be rotated from the in position into a rotary position and release the lock from the hook.

Description

The invention is directed to a lock with a closing aid according to the specified in the preamble of claim 1. Art in the lock housing is a pivotable locking member. This acts together when closing and opening the flap with a closing part. As a closing aid for the flap is a motor that controls the movement of the locking member via a transmission. The engine is turned on and off by sensors that respond to a specific gear position and / or by manual actuators.

In the known lock of this type ( DE 198 41 309 C2 ) The locking member consists of a rotary latch, which is connected to a rotary latch and a driver to a jointly pivoting rotary unit. On the axis of the rotary unit and a driven member of the engine is mounted with a rotationally fixed cam, which cooperates with the driver of the rotary unit. A spring-loaded pawl acts in certain pivot positions of the rotary unit with a pre-locking and with a final detent stage of the catch together. The motor serves as a closing aid and possibly also as an opening aid. For this purpose, the motor is provided with a transmission group which is between an engagement position and a Separation position is adjustable. This lock has proven itself, but consists of many components that make the castle space consuming and expensive.

In another castle of this type ( US 4,796,962 ) a hook head translationally and rotationally used to close a closing part, tighten by engine power and release the same direction of rotation again. However, this lock has no opening aid.

The invention has for its object to develop a reliable lock mentioned in the preamble of claim 1 species, which requires only a few components and is inexpensive to produce. This is achieved by the measures mentioned in claim 1, which have the following special significance.

In the invention, a pivotally mounted on a carriage hook acts as a locking member. The locking member cooperates with the closing part. The special feature of the invention is that the carriage with the hook form a structural unit, which is jointly movable in two different ways. The one movement is translational. The assembly is moved by the engine gearbox between a Ausschublage and a slide-in position and acts as a Zuziehhilfe the flap. The other movement is rotatory. In this case, the assembly located in its insertion position is rotated by the engine gear in a rotational position. In this rotational position of the hook head in the assembly releases the closing part.

As can be seen, the lock according to the invention consists of relatively simple, few parts that require little space. As a result, the lock according to the invention can be produced quickly and inexpensively.

It is recommended by a spring force and a stop on the carriage to press the hook in a rest position, in which the closing part engages behind the hook head of the hook for pulling and in the Zuklapplage the flap. When the carriage is in its Ausschublage, it is also recommended when closing the open flap, the hook against its spring force from a Rest position to pivot in a pivotal position, whereby the closing part is let pass without effect on the head of the hook.

Fig. 1

das erfindungsgemäße Schloss in Aufklappposition der Klappe,

Fig. 2

die Anfangsphase des Eingriffs eines an der Klappe sitzenden Schließteils mit den Schlossgliedern, nachdem der Schließteil in das Schloss eingetreten ist, und wo eine Zuziehhilfe der Schlossglieder gestartet worden ist,

Fig. 3

die Schlossglieder, nach Vollzug der Zuziehhilfe in einer Verschlusslage, wo der an der Klappe sitzende Schließteil im Schloss verriegelt ist,

Fig. 4

die Schlossglieder während der Freigabe des Schließteils, wo in der ersten Phase der Aufklappbewegung der Klappe eine Öffnungshilfe ihre Arbeit gerade beendet hat,

Fig. 5

die Schlossglieder in einer der Fig. 4 folgenden Arbeitsphase, welche derjenigen der in Fig. 1 beschriebenen Aufklappposition wieder entspricht, und

Fig. 6,

ausgehend von der Verriegelungslage von Fig. 3, eine manuelle Betätigung der Schlossglieder im Notfall, in welcher die Öffnungshilfe zum Auswerfen des Schließteils aus dem Schloss geendet hat.

Further measures and advantages of the invention will become apparent from the dependent claims of the following description and the drawings. In the drawings, an embodiment of the invention is shown in different stages of work. They show, in each case in plan view, on the opened lock housing,

Fig. 1

the lock according to the invention in the unfolded position of the flap,

Fig. 2

the initial phase of the engagement of a closure member seated on the flap with the lock members after the closure member has entered the lock and where a closing aid of the lock members has been started,

Fig. 3

the lock members, after completion of the closing aid in a closed position, where the closing part sitting on the flap is locked in the lock,

Fig. 4

the lock members during the release of the closing part, where in the first phase of the opening movement of the flap an opening aid has just finished its work,

Fig. 5

the castle links in one of the Fig. 4 following work phase, which of those in Fig. 1 described unfolding position corresponds again, and

6,

starting from the locking position of Fig. 3 , a manual operation of the lock members in an emergency, in which the opening aid has ended for ejecting the closing part of the castle.

In the drawings, the lock is used in a glove box of a vehicle. On the case of the glove compartment a flap is mounted, which is not shown in detail. When the flap is in its open position, the box interior is accessible. If the flap is transferred to its Zuklappposition, the box interior is inaccessible. In the Zuklappposition a seated on the flap closure member 10 is locked by the lock members, which sit in a glove box attached to the lock housing 11. The attachment of the lock housing 11 is effected by screws which engage the attachment points 12. Although the closing part 10 is bow-shaped, only the round cross-section of one of its bow bars can be seen in the drawings.

Inside the lock housing 11 is a unit 20, consisting of a hook 21 which is pivotally connected via a bearing pin 23 with a carriage 22. In the bottom and top wall of the lock housing 11 are elongated holes 13 in which the ends of the bearing pin 23 are both rotatably and slidably received.

The hook 21 is under the action of a spring force 25, which starts from a leg spring 26 and strives to keep the hook pressed against a stop 27. This stop position is in Fig. 2 shown marked by the auxiliary line 21.1 there and will be referred to below as the "rest position" of the hook 21.

The Fig. 1 shows, as has already been said in the description of the figure, the conditions in their unfolded position flap. The closing part 10 is located outside the lock housing 11. Then the hook 21 is in a relation to the rest position 21.1 pivoted, characterized by the auxiliary line 21.2 position, which will be called "pivoting position" of the hook 21 below. The pivot position 21.2 comes, despite the acting spring force 25, by the fact that the tip of the hook head 24 is supported on the one arm end of a eject lever 30.

The ejection lever 30 is formed with two arms 31, 32 and mounted on an axis 14 fixed in the lock housing 11. The ejection lever 30 is under the action of a spring force 35 which is generated by a further leg spring 33. In the unfolded position of Fig. 1 is the one arm 31 from the eject lever 30 in the marked by an auxiliary line 31.1 "support position" where the tip of the hook head 24 is supported at its front end 34. This arm 31 from the eject lever 30 is thus a "support arm". His support position 31.1 comes, despite the spring force acting on him 35, by the fact that the other arm 32 from the ejection lever 30 is supported on the actuator 41 of a first microswitch 40, which is why this second arm 32 proves to be "stop arm". In Fig. 1 the actuator 41 is actuated by the stop arm 32. Then connected to the micro-switch 40 motor 50 is turned off in the lock housing 11. The motor 50 downstream transmission 55 rests.

In the unfolded position of Fig. 1 is the assembly 20 in a marked by the auxiliary line 20.1 "Ausschublage", which also in Fig. 2 is present and will be described with reference to this Fig. closer. On the carriage 22 of the assembly 20 acts a spring load 15, which is generated by a return spring 16 designed as a tension spring. The return spring 16 is at one end, at 17, attached to the lock housing 11 and the other end, at 18, on the carriage 22. By the spring load 15 of the bearing pin 23 is first brought at the upper end 19 of its slot 13 at 19 in abutment. The spring load 15 also ensures that the carriage 22 is held pressed with a longitudinal edge 28 on a shoulder 38. Under the action of the spring load 15 thus the aforementioned components 13, 23 on the one hand and 28, 38 on the other hand act as a two-point guide of the assembly 20 in a reference to the Fig. 3 to be described in more detail translational shift.

If, starting from the Aufklappposition, the flap initially manually folded in the direction of the stationary housing 11, so the seated on the flap closing member 10 moves in the direction of the arrow 39 of Fig. 1 in a slot 37 of the housing 11 and thereby meets the support arm 31 of the eject lever 30. The support arm 31 is then taken in the further completion of the movement 39 and first passes into the Fig. 2 apparent, characterized by the auxiliary line 31.2 "Intermediate position". The hook head 24 loses its support and passes due to the force acting on it spring force 25 in the determined by the stop 27, already mentioned rest position 21.1 of Fig. 2 , Then the closing part is in an intermediate position, which in Fig. 2 denoted by 10 '. The closing part 10 'is then located between the hook head 24 and the support arm 31.

In the intermediate position 31.2 of Fig. 2 the stop arm 32 has released from the eject lever 30 the actuator 41 from the microswitch 40. Thereby, the motor 50 is turned on and there is a Zuziehhilfe in the lock according to the invention as follows. The motor 50 sets its gear 55 in motion. The gear 55 here comprises a worm 51 at the output of the motor 50, which drives a worm wheel 52. The worm wheel 52 is rotatably connected to a gear 53, which is connected to the toothing of an output gear 54. At the driven gear 54 is seated a first driver 56 which engages in a window 29 of the carriage 22. The hook 21 facing away from the boundary edge 36 from the window 29 forms a cooperating with the cam 56 control cam. When indicated by the arrow 57 in FIG Fig. 2 clarified rotation of the output gear 54 of the driver 56 runs in the carriage window 29. In the course of the rotation 57, the driver 56 abuts on the aforementioned boundary edge 56 in the carriage 22 and takes with the carriage. As a result, the already mentioned guide means 23, 13 on the one hand and 28, 38 on the other hand effective. It finds a translational displacement of the unit in the Fig. 3 apparent "insertion position" instead, which is indicated there by the auxiliary line 20.2. The bearing pin passes as Fig. 3 illustrates the distance to the inner boundary of the housing-side slot 13. The distance of displacement of the assembly 20 is on the bearing pin 23 of Fig. 3 designated by the way arrow 42.

During the motor displacement 42 of the structural unit 20, the closing part 10, which has already been previously grasped in the intermediate position 10 ', is carried along by the hook head 24 and reaches its lowest point Fig. 3 As a result, the support arm 31 is entrained and the leg spring 26 acting on the ejection lever 30 is further tensioned by the motor 50. The support arm 31 comes to lie in the position indicated by the auxiliary line 31.3, which is therefore the "clamping position A sensor can detect the position of the lock members in the insertion position 20.2 of the assembly 20 then the locking part 10 is locked in its retracted position 10 "in the lock housing 11. The flap is in its fully closed position on the ejector lever 30 effective leg spring 33 clamped with a high spring force 35. This prevents rattling noises when moving the vehicle.

As a sensor for the aforementioned stopping of the motor 50 is used in the embodiment, a second microswitch 55 in the lock housing 11, which monitors the rotational position of the driven gear 54 from the motor gear 55. For this purpose, two cams 43, 44, which cooperate with the actuator of this second microswitch 45, are located at its periphery. In Fig. 1 , in the Ausschublage 20.1 of the assembly 20, the first cam 43 cooperates with the switch 45, while the second cam 44 is opposite. After the in Fig. 2 drawn rotation 57 comes in the insertion position 20.2 of Fig. 3 the second cam 44 from the output gear 54 with the micro-switch 45 in contact. Thereby, as described, the motor 50 is stopped.

If the user, starting from the folding position of the flap in Fig. 3 , wants to open the glove box, he manually actuates a not shown in detail electrical actuator, such as an electric button, the output gear 54 in the sense of Fig. 4 visible rotation arrow 58 continues to rotate. In this case, a second driver 59 provided on the output gear 54 comes to effect on a mating surface 49. This counter surface 49 is how out Fig. 3 shows, by the edge of an integrally formed on the slide 22 approach 48, which extends the carriage 22 at its inner end. As Fig. 4 shows, the driver 59 carries the carriage 22 and thereby moves the entire assembly 20 in the direction indicated by the auxiliary line 20.3 "rotational position". The assembly 20 led through the rotation angle 47 in Fig. 4 illustrated "rotary rotation" in the lock housing 11. This rotation 47 takes place around the received in the slot 13 of the lock housing 11 bearing pin 23. It stands out, against the action of the return spring 16, the carriage 22 with its longitudinal edge 28 of the housing-fixed shoulder 38 from. On the slider 22, an increased spring load 15 acts.

In the aforementioned rotation 47 of the assembly 20, of course, the hook 21, which is supported on the carriage-side stop 27, twisted to the off Fig. 4 apparent "forced rotational position", which is marked by the auxiliary line 21.3. Then the hitherto in the described collection position 10 "of Fig. 3 located closing part of the twisted hook head 24 free. This feed sheet 10 "is also in Fig. 4 drawn in dash-dotted lines. From there, the closing part 10 from the arm 31 of the eject lever 30 by means of the high spring force 35 of the tensioned leg spring 33 in the sense of the movement arrow 61 of Fig. 4 out catapulted out of the lock housing 11. The ejection lever 30 and its spring force 35 thus act as an "opening aid" in the opening movement 61 of the flap. The closing part 10 can then, as Fig. 5 clarified to be moved by manually moving the flap in the direction of the arrow 62 of the closing part 10.

In the rotational position 20.3 of the unit 20 of Fig. 4 the motor 50 does not stop yet. The driven gear 54 continues to rotate in the sense of the rotation arrow 58 until it's out Fig. 5 apparent rotational position has, which of those of Fig. 1 equivalent. Now the second cam 44 has the in Fig. 4 still detectable actuator 46 reaches from the second microswitch 45. This will be in Fig. 5 the second microswitch 45 is turned off and thereby the motor 50 is stopped.

At the following Fig. 4 Continuing rotation 58 of the output gear 54, the second driver 59 is finally the flank 49 on the carriage 22 free. This can be done by suitable profiling of the components 49, 59. Then the carriage 22 and with it the whole unit 20 is moved back by the return spring 16. Because in the meantime, the first driver 56, the window boundary edge 36 released, which is why the unit 20 back into its original Ausschublage 20.1. Is in Fig. 5 to recognize. The assembly 20 whose rotational position 20.3 dash-dotted lines in Fig. 5 is indicated, has performed a combined reverse rotation and backward displacement illustrated by the return arrow 63.

Already in Fig. 4 is the eject lever 30 with its support arm 31, as described, moved back by the spring force 35 and therefore decreases in the subsequent working phase of Fig. 5 already the above-described support position 31.1 in the lock housing 11 a. Therefore comes in the case of their Ausschublage 20.1 located Assembly 20 of the hook head 24 in Fig. 5 again in his described support at the front end 34 of the support arm 31. As a result, the castle, as mentioned, back in his Fig. 1 apparent starting position independently attributed. The hook 21 is again in its pivotal position 21.2. The lock is ready to with the closure member 10 at a next Zuklappbewegung 39 according to Fig. 1 co.

The lock according to the invention remains functional even if the electrical control or the drive means in the lock housing 11 should fail. The problem arises when the off Fig. 3 apparent Zuklappposition the flap is present, where the closing part is in its locked infeed position 10 "in the lock Figure 6 "manual emergency operation", which is designated 60.

This emergency operation 60 includes how Fig. 3 shows a slider 64 which is longitudinally movable in a guide track 66. The guideway 66 is integrated in the lock housing 11. At this slide 64 engages a traction means 70. This consists in the present case of a Bowden cable whose pull cable 71 engages the slider 64 at the point marked 73. The Bowden cable jacket 72 is attached to the lock housing 11. The slider 64 is under the action of a compression spring 74, which at one end, at 76, is supported on the lock housing 11 and exerts the pressure force illustrated by an arrow 75 on the slider 64. As a result, the slider 64 is normally positioned with the end face of an upwardly projecting impact wall 65 against a stop 67 delimiting the guide track 66. Then there is an inoperative starting position of the emergency operation 60, which in Fig. 2 marked with an auxiliary line 64.1. This inoperative starting position 64.1 is in accordance with all working phases described so far Fig. 1 to 5 in front.

How out Fig. 3 further, the hook 21 is provided from a side facing away from the hook head 24 with a projection 68 on which there is a downwardly projecting projection 69, which consists of a seated in the neck 68 pin here. The pin 69 engages behind the rear surface of the impact wall 65. Therefore, if the hook 21 in its pivoting position 21.2 of Fig. 1 located or the whole Assembly 20 together with the hook 21 in Fig. 4 recognizable tilt position assumes, so the pin 69 can move away from the resting bump wall 65 undisturbed. As a result, the starting position 64.1 of the slider 64 is not affected.

In Fig. 6 is the traction means 70, according to the arrow 78, manually operated. As a result, the slide reaches the through the auxiliary line 64.2 of Fig. 6 characterized effective actuation position. The slider bumper 65 has faced Fig. 3 , in the Fig. 6 is reproduced by dash-dotted lines, moved about the distance 77 while the entrained behind her 69 pin. It comes forcibly to a tilt position 21 'of the hook. Also, the hook head comes in an inclined position 24 'of Fig. 6 , The according to the previous one Fig. 3 still in its retraction position 10 "located closing part is then released from the hook 24 ', but is first under attacked by the spring-loaded 35 support arm 31. This retraction position 10" is also in Fig. 6 dash-dotted lines. In Fig. 6 however, the inclined hook head 24 'has released the closing part in the position 10 ", as a result of which the closing part is catapulted out of the lock owing to the high clamping force 35 of the ejection lever 30 and is located in Fig. 6 already outside the lock housing 11. In Fig. 6 is the lever 30 with his arm 31 already returned to its determined by the stop at 41 from the first microswitch 40 position 31.1.

Because of the already in Fig. 3 described driving action of the first driver 56 on the output gear 54 is the carriage 22 in Fig. 6 still in the insertion position 20.2, therefore, in Fig. 6 was marked by the corresponding auxiliary line. In Fig. 6 yes, as I said, the electric drive failed. Lets the in Fig. 6 the pull actuation force illustrated by the arrow 78 on the cable 71, the slider 64 is moved back into its starting position 64.1 at the stop 67 illustrated by dashed lines by the high pressure force 75. Then, although the tip of the hook head due to the described translational displacement 42 does not hit the front end of the lever arm 31. This is irrelevant at first, because, as I said and by the dashed line of movement 61 in Fig. 6 is clarified, the closing part 10 has already been thrown out of the lock housing 11.

However, the lock is not impaired in its future operation, if the motor 50 should be set by the mentioned electrical button later still running successfully. Then arise that is already on the basis of Fig. 4 and 5 The then delayed put back into running motor 50 brings the unit 20 namely properly in the Fig. 5 shown Ausschublage 20.1, where the tip of the hook 24 then again learns the support described at the front end 34 of the support arm 31. The lock is ready for use again.

List of reference numbers:

10

closing part

10 '

Interlayer of 10 ( Fig. 2 )

10 "

Collection position of 10 ( Fig. 3 )

11

lock housing

12

Attachment points for 11 ( Fig. 1 )

13

Slot for 23 ( Fig. 2 )

14

Axis for 30 to 11 ( Fig. 1 )

15

Spring load of 16

16

Return spring for 20

17

Connection for 16 to 11

18

Connection for 16 to 20

19

upper stop end for 23 in 13 ( Fig. 2 )

20

unit

20.1

Discharge of 20 ( Fig. 2 )

20.2

Insertion position of 20 ( Fig. 3 . 6 )

20.3

Rotational position of 20 ( Fig. 4 )

21

Hook on 20

21 '

Inclination of 21 ( Fig. 6 )

21.1

Rest position of 21 ( Fig. 2 . 3 )

21.2

Swivel position of 21 ( Fig. 1 . 5 )

21.3

Forced rotation of 21 at 20.3 ( Fig. 4 )

22

Sleigh of 20

23

Bearing pin for 21 on 22

24

Hook head of 21

24 '

Inclination of 24 ( Fig. 6 )

25

Spring force for 21

26

Leg spring for 25

27

Stop for 21

28

Longitudinal edge of 22

29

Windows in 22 ( Fig. 2 )

30

Ejector lever for 10

31

Support arm of 30

31.1

Support position of 31 ( Fig. 1 . 5 )

31.2

Intermediate position of 31 ( Fig. 2 )

31.3

Tension position of 31 ( Fig. 3 )

32

Stop arm of 30

33

Leg spring for 35

34

Forehead of 31

35

Spring force of 33 at 30

36

Control cam for 56, boundary edge of 29 ( Fig. 2 )

37

Housing slot in 11

38

Shoulder to 11 for 28 ( Fig. 2 )

39

Zuklapp-Bewegungspfeil of 10 ( Fig. 1 )

40

first microswitch ( Fig. 1 . 2 )

41

Actuator for 40 ( Fig. 2 )

42

translational displacement path of 20 ( Fig. 3 )

43

first cam on 54

44

second cam on 54

45

second microswitch ( Fig. 3 )

46

Actuator of 45 ( Fig. 4 )

47

rotative rotation of 20, rotation angle at 20.3 ( Fig. 4 )

48

Approach to 22 ( Fig. 3 )

49

Counterface for 59, flank of 48 ( Fig. 3 )

50

electric motor ( Fig. 1 )

51

Snail of 55 ( Fig. 1 )

52

Worm wheel of 55 ( Fig. 1 )

53

Gear of 55 ( Fig. 1 )

54

Output gear from 55 ( Fig. 1 )

55

Gearbox of 50 ( Fig. 1 )

56

first driver at 54 for 36 ( Fig. 2 )

57

Rotation arrow of 54 ( Fig. 2 )

58

another rotation arrow of 54 ( Fig. 4 )

59

second driver at 54 for 49 ( Fig. 3 )

60

Emergency operation ( Fig. 3 . 6 )

61

Arrow of the ejection movement of 10 ( Fig. 4 . 6 )

62

Arrow of the unfolding movement of 10 ( Fig. 5 )

63

Return arrow of 20 from 20.3 ( Fig. 5 )

64

pusher

64.1

ineffective starting position of 64 ( Fig. 3 )

64.2

effective actuation position of 64 ( Fig. 6 )

65

Bumper at 64 ( Fig. 3 )

66

Guideway for 64 ( Fig. 3 )

67

Stop in 66 for 64 ( Fig. 6 )

68

Approach to 64 ( Fig. 3 )

69

Projection on 68, pin ( Fig. 3 )

70

Pulling means of 60, Bowden cable ( Fig. 3 )

71

Traction rope of 70 ( Fig. 3 )

72

Coat of 70 ( Fig. 3 )

73

Attack point of 71 at 64 ( Fig. 3 )

74

Compression spring for 64 ( Fig. 3 )

75

Arrow of the pressure force from 74 to 64 ( Fig. 3 )

76

fixed end of 74 at 11 ( Fig. 3 )

77

Longitudinal movement distance between 64.1 and 64.2 ( Fig. 6 )

78

Pulling arrow of 71 ( Fig. 6 )

Claims (20)

1. Lock for lids or doors of vehicles, especially a glove compartment lock,
   with a swivelable locking element in the lock housing,
   with a closing part (10) which interacts with the lid during the closing and opening of the lid and with a motor (50) which serves as an assisted final closure for the lid,
   which controls the movement of the locking element by means of a gear unit (55) and which can be switched on and off by sensors which respond to specific gear unit positions and/or by manual actuators,
   with a hook (21), which is mounted (23) in a slide (22), functioning as a locking element
   with the slide (22) together with the hook (21) forming an assembly (20) which can move in two different manners,
   in that on one hand the assembly (20) can be translatorily slid (42) by the motor gear unit (55) between a withdrawn position (20.1) and an inserted position (20.2) to lock the lock and functions as an assisted final closure of the lid,
   and on the other hand the assembly (20) in the inserted position (20.2) can be rotated (47) by the motor gear unit (55) to a rotated position (20.3) in which the hook head (24) in the assembly (20) releases the closure part (10) to unlock the door
   characterised in that
   a spring-loaded (35) ejection lever (30) is mounted, fixed, (14) in the lock housing (11) and normally held in a supported position (31.1) by an end stop (41),
   when the flap is being closed (39) the free end of the ejection lever (31.1) projects into the path (39) of the closure part (10),
   in the withdrawn position (20.1) of the assembly (20) the ejection lever (30) supports the hook (21) in its swivelled position (21.2) until the closure part (10) strikes the lever end during closing (39), carries the ejection lever (30) against its spring loading (35) and removes the supporting effect of the ejection lever (30) on the hook (21),
   and the hook (24) is then swivelled back to its at-rest position (21.1) by its spring force (25) and during the complete translatory movement (42) of the assembly (20) up to its inserted position (20.2), keeps the closure part (position 10' and 10" ) between its hooked head (24) and the end of the lever,
   with the closure part (position 10' and 10" ) being pressed by the spring force (35) of the ejection lever (30) against the hook head (24),
   and in the rotated position (20.3) of the assembly (20) the ejection lever (30) acts as an opening assistance and the closure part (position 10") is pushed out (61) by the spring force (35) acting on it past the hook head (24) of the hook (21) out of the lock housing.
2. Lock according to Claim 1, characterised in that the hook (21) is normally held in an at-rest position (21.1) by a spring force (25) and a stop (27) on the slide (22),
   in which the closure part (10) grips behind the head (24) of the hook (21) during closure and also in the closed position of the lid.
3. Lock according to Claim 1 or 2, characterised in that during the closure (39) of the open lid the hook (24) is in the withdrawn position (20.1) and is swivelled by its spring force (25) from its at-rest position (21.1) to a swivelled position (21.2) in order to permit the closure part (10) to pass the hook head (24).
4. Lock according to Claim 1, characterised in that the actuator (41) of a microswitch (40), arranged, fixed, in the lock housing (11), acts as an endstop and determines the supported position (31.1) of the ejection lever (30)
   and when the ejection lever (30) is carried by the closure part the actuator (41) is released and the microswitch (40) switches on the motor (50),
   with the motor gear unit (55) translatorily moving (42) the assembly (20) from its withdrawn position (20.1) to its inserted position (20.2).
5. Lock according to Claim 1 or 4, characterised in that the ejection lever (30) is designed as an ejection lever (30) with two arms (31, 32),
   consisting of a supporting arm (31) for the hook (24) and a stop arm (32) for the actuator (41) of the microswitch (40).
6. Lock according to one of Claims 1 to 5, characterised in that the bearing pin (23), which serves as a swivel mounting of the hook (24) on the slide (22), is guided in an elongated hole (13) of the lock housing (11) and, furthermore, performs two other functions,
   one of which acts as a guide means of the assembly (20) during the translatory movement (42)
   and the other is that it acts as a rotary axis of the assembly (20) during its rotation (47) in the lock housing.
7. Lock according to one of Claims 1 to 6, characterised in that the assembly (20) is under spring pressure (16), which
   moves the assembly (20) from its inserted position (20.2) on one hand and on the other hand from its rotated position (20.3) back to its withdrawn position (20.1).
8. Lock according to Claim 7, characterised in that a single return spring (16) serves for the return movement of the assembly both from the inserted position (20.2) and also from the rotated position (20.3).
9. Lock according to one of Claims 6 to 8, characterised in that the bearing pin (23) performs a further, fourth, function,
   which is to act as a stop means (19) and limit the withdrawn position (20.1) of the assembly (20) in the elongated hole (13) of the lock housing (11).
10. Lock according to one of Claims 6 to 9, characterised in that the assembly (20) has a two-point guide (13, 23) and (28, 38) for its translatory movement (42),
    in addition to the guiding effect of the bearing pin (23) in the elongated hole (13) of the lock housing (11) it has a fixed shoulder (38) in the lock housing (11),
    against which the long edge (28) of the assembly (20) is pressed by the return spring (16) both in the withdrawn position (20.1) and also as a guiding function during the translatory movement (42) and in the inserted position (20.2)
    and that the long edge (28) of the assembly is lifted by the motor gear unit (55) from the shoulder (38) against the return force (15) both during the rotational movement (47) of the assembly (20) and also in the rotated position (20.3).
11. Lock according to one of Claims 1 to 10, characterised in that a first dog (46), to which a control curve (36) on the slide (22) is assigned, is seated on an output drive wheel (54) of the motor gear unit (55),
    although the dog (46) releases the control curve (36) in the withdrawn position (20.1) of the assembly (20)
    it moves against the control curve (36) when the motor (50) starts and carries the slide up to the inserted position (20.2) of the assembly (20),
    and that a sensor (45, 46), which then responds to this position, stops the motor (50).
12. Lock according to Claim 11, characterised in that the slide (22) has a window (29) in which the dog (56) circulates during the rotation (57) of the output drive wheel (54),
    and that the inner limiting edge of the window (29) functions as a control curve (36).
13. Lock according to one of Claims 1 to 12, characterised in that a second dog (59), to which an opposite surface (49) on the slide (22) is assigned, is seated on an output drive wheel (54) of the motor gear unit (55),
    to open the lid when it is in its closed position the motor (50) is started by a manual actuator,
    which causes the second dog (59) to move against the opposite surface (49) and the assembly (20) to be rotated (47) from its inserted position (20.2) to its rotated position (20.3),
    so that the output drive wheel (54) continues to rotate and the second dog (59) thus releases the opposite surface (49),
    which causes the return spring (16) to move back (63) the assembly (20) from its rotated position (20.3) to its withdrawn position (20.1),
    so that the motor (50) continues to run (58) until the output drive wheel (54) has reached a rotated position, which determines the withdrawn position (20.1) of the assembly (20),
    and that then a sensor (45, 46) responding to this position stops the motor (50).
14. Lock according to Claim 13, characterised in that the slide (22) has a lug (48) whose face forms the opposite surface (49).
15. Lock according to one of Claims 11 to 14, characterised in that although the first and second dogs (56, 59) are seated on the same output drive wheel (54) they each have a different radial distance from the axis of the wheel.
16. Lock according to one of Claims 11 to 15, characterised in that the sensor, which stops the motor (50) in the inserted position (20.1) and/or in the withdrawn position (20.2) of the assembly (20) responds to the particular rotational position of the output drive wheel (54).
17. Lock according to Claim 16, characterised in that the actuator (46) of a single microswitch (45) is the same sensor for the inserted position (20.2) and for the withdrawn position (20.1) of the assembly (20)
    and that the output drive wheel (54) has two cams (43, 44) spaced apart in the direction of rotation of the wheel,
    of which the first cam (43) interacts with the switch actuator (46) in the withdrawn position (20.1) and of which the second cam (44) interacts with the switch actuator (46) in the inserted position (20.2).
18. Lock according to one of Claims 1 to 17, characterised in that in an emergency a manually actuated pull means (70) engages on the hook (21) of the assembly in order to open the lid which is in the closed position,
    with the actuation (78) releasing the hook from its at-rest position (21.1), where it holds the closure part (10'') in the lock, and causing it to swivel to an inclined position where its hook head (24') releases the closure part (10").
19. Lock according to Claim 18, characterised in that the pull means (70) engages indirectly on the hook (21) through a slider (64) which moves lengthwise (77) in the lock housing (11),
    and in that the pull means (70) is attached to the slide (64) and the slide has an impact wall (65) behind which a projection (69), seated on the hook (21), engages,
    so that the slide (64) is normally held in an inoperative starting position (64.1) by a spring pressure (75),
    where the hook projection (69) can move freely behind the slide impact wall (65) during a motorised (50) changeover of the hook (21),
    so that, however, the slide (64) can, in an emergency, be moved to an effective actuated position (64.2) by actuation of the pull means (70) against its spring pressure (75),
    where the slide impact wall (65) engages the hook projection (69) and moves the hook head of the hook (21) to an inclined position (24') at which the closure part (10) is released.
20. Lock according to Claim 19, characterised in that the pull means is a Bowden cable assembly (70).

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