EP1040244A1

EP1040244A1 - Rotary latch lock, especially for motor vehicles

Info

Publication number: EP1040244A1
Application number: EP98966281A
Authority: EP
Inventors: Piotr Szablewski
Original assignee: Huf Huelsbeck and Fuerst GmbH and Co KG
Current assignee: Huf Huelsbeck and Fuerst GmbH and Co KG
Priority date: 1997-12-16
Filing date: 1998-12-10
Publication date: 2000-10-04
Anticipated expiration: 2018-12-10
Also published as: JP2002508463A; AU2269699A; EP1040244B1; AU736247B2; PT1040244E; BR9814292A; KR20010033082A; CN1282399A; DE19755695A1; US6419286B1; ES2163309T3; DE59802175D1; WO1999031340A1

Abstract

The invention relates to a rotary latch lock comprising a rotary latch (20) which receives a closing member (10), whereby said latch is spring-loaded (22) in an open position and retained by a pivoting spring-loaded catch (30) in a closed position. The locking catch (30) can also be mechanically shifted from closed position (whereby the latch is retained) to a release position by means of inside handles (24), outside handles (25) and security handles (26) in addition to other, possibly motorised means (70). Said lock encompasses three different states which are differentiated from each other in that all handles (24, 25, 26) or only some of these handles can be actuated from the inside. A release lever (35), acting mechanically upon the catch (30), is used. Said lever is connected to a control lever (28) which can be correspondingly shifted into three pivoting positions. According to the respective pivoting position, a mobile-mounted release-lever (35) driver (44) can be placed by the control lever (28) in a position whereby the various handles can become operative or inoperative according to choice.

Description

Rotary latch lock, especially for vehicles

The invention is directed to a rotary latch lock which can be taken from the claims. A high level of actuation comfort and a high level of security of the lock require a large amount of construction work and increase the weight of the lock considerably.

The invention has for its object to unleash a reliable, simply built lock, which is characterized by a particularly low weight. However, the actuation should be very reliable, even if the electrical power sources used to operate the lock comfortably should fail completely. The solution to this problem results from the measures specified in the claims men.

In the drawings, the invention is shown in one embodiment. Show it:

1 is a top view of one side of a component receiving the components of the lock according to the invention, when the rotary latch is in its closed position receiving a locking member,

2 shows some parts from the top view of FIG. 1, when the lock is in a different working position, namely an open position, the Sch-ießgHed is released, Fig. 3 shows the lock shown in Fig. 1 in top view on the opposite side of the co m ponententrägers where the components are to detect the zugeord ^¬ Neten m echanical device, and, in a first operating position

4 and 5 the same top view as in Fig. 3, when the components are in two other working positions, and

Fig. 6 shows a detail of the castle in schematic representation.

1 and 2 are shown from the German patent application 197 25 416.0-22 removable components. These components are also used in the present invention; to this extent the description of the aforementioned patent application applies, to which reference is made. There is a closing member 10 on the stationary door jamb of a vehicle body, which is shown in section in Figs. 1 and 2, and a rotary latch 20 which sits by means of an axis 21 on a m profiled, plate-like component carrier 11 which is attached to the movable door is. The rotary latch 20 can be rotated between two rotary end positions, one of which is shown in FIG. 1 and the other in FIG. 2. The rotary latch is under the action of a return spring 22 which loads it spring and tends to keep the latch 20 in its open position shown in FIG. 2. The rotary latch 20 has a radial cutout 23, into which the closing member 10 retracts when the door is closed in the direction of arrow 13 of FIG. 2 and the latch 20 against the action of its return spring 22 from the open position of FIG. 2 into the already mentioned closed position of Fig. 1 transferred. The profiled Ko mponentträger 11 has a channel 19 into which m the closing member 10 retracts during its movement 13. This closed position is limited by a stop 12 a m bracket 11. In the closed position of FIG. 1, the closing member 10 is received in the radial cutout 23 and is in the open position of FIG. 2 in its release position, which is indicated there by 10 '.

Another component of the lock is a pawl 30 consisting of two arms 31, 32, which sits on the support 11 on an axis 34. The pawl 3, 3 is spring-loaded by a spring 33, which it holds against the latch 20 with the one arm 31, the working arm. With this working arm 31, the pawl 30 cooperates with the rotary latch 20. The other arm 32 is used to adjust the pawl 30 in various adjustment movements, which are described in the aforementioned patent application 197 25 416.0-22. This includes a DC motor 50, which interacts via a worm 52 with a worm wheel 53, which carries a control cam 51. The control cam 51 acts, in the manner evident from the aforementioned patent application, not only with the steep arm 32, but also with a further storage lever 40, which is force-loaded by an energy accumulator 41, which here consists of a leg spring . A sensor 15 responds to certain rotational positions of the trap 20, which, as was described in more detail in the aforementioned patent, interacts with the motor 50.

While in FIG. 1 the electrical devices 14 provided on one side 16 of the carrier 11 are arranged next to the rotary latch 20 and the pawl 30, on the opposite side shown in FIG. 3 there are components of a mechanical device 18 which are used for Actuate the ^¬ account the catch 30 is used. The actuations are based on various mechanical and / or electrical manipulations, which are not shown in detail, but are illustrated in FIG. 3 with their points of attack 24 to 27. These points of attack 24 to 27 are to be used subsequently to designate the various manipulations. This includes an inside handle 24 arranged in the vehicle interior, also an outside handle 25 accessible from the outside of the vehicle, then a securing handle 26 that can be actuated inside the vehicle and finally a locking means (not shown in more detail) that can be actuated from the outside of the vehicle, which by its rotating action 70 on a pivot axis 27 one ^¬ control lever 28 act. With 70 of this rotational effect, the closure means are also to be marked below. The control lever 28 is seated in a rotationally fixed ^manner on this pivot axis 27. The control lever can be transferred between three pivot positions labeled 28, 28 ', 28 ". The pivot axis 27 is a rotational axis 51', which is on the opposite one as shown in FIG 1 is a worm wheel 53 'that is rotatably fixed with this axis 51' and is operated by a m D C motor 50 'via a worm 52'. The actuation of the motor 50 'can be carried out via a remote control device or the like. These components 50' to 53 'are the m otor component of the aforementioned closure means 70, but which can still be a mechanical actuation, such as the cylinder core of a key-operable locking cylinder. Instead of a remote control device, a so-called "key-less entry" or the like can be used.

The control lever 28 is connected via a connecting member 42 to a release lever 35 which has an angled release finger 36. The release finger 36 passes through an opening 54 in the component carrier 11 and protrudes on the other side 16 of the carrier 11 according to FIG. 1. The release finger 36 engages behind a nose 39 provided on the pawl 30. The connecting member 42 is articulated on the control lever 28 at 43 and slides with a sliding block 69 at its other end 44 in a longitudinal guide designed as a setting 38, which is in an arm 37 of the Release lever 35 is located.

In addition to the release lever 35, two actuating levers 45, 46 are provided, namely an inner actuating lever 45 connected to the already mentioned inner handle 24 and an outer actuating lever 46 interacting with the outer handle 25. The two levers 45, 46 are, together with the Release lever 35 is rotatably mounted on a lonely pin 47 en. The bearing pin 47 is advantageously coaxial with the pawl axis 34 arranged on the opposite side 16 of FIG. 1.

In Fig. 3, a first pivot position 28 of the control lever is shown, which characterizes a first state of the lock, which is to be referred to as the "closed state". In this case, there is an authorization to access the vehicle both via the inner handle 24 and via the outer handle 25. This access authorization takes place not only via the mentioned electrical devices 14 a K om further actuation, but if it is, for. B. to the failure of the current source ko m mt, also via the mechanical device shown in FIG. 3 m. 18. By actuating one of the two by their handle points 24 and 25 handles the respective actuating lever 45, 46 is pivoted. Both levers 45, 46 have Arbeitsar me 48, 49, which in the counterclockwise pivoting of the levers 45, 46 meet the end of the connecting member 42 and take it with them. This end 44 of the connecting member 42 seated in the longitudinal guide 38 is therefore a “driver”. It then come to a rotation of the release lever 35 in the direction of arrow 55 of FIG. 3. The release finger 36 detects the nose 39 of the pawl 30 shown in FIG. 1 and guides it into the release position shown in FIG. 2. The release lever 35 and the actuating levers 45, 46 are under a spring force, not shown in detail, which strives to bring them back into the starting position in FIG. 3. When the inner and outer handles 24, 25 are actuated, the control lever 28 can remain at rest, although the connecting member 42 articulated on it is moved with its driving end 44 during the rotation 55 of the release lever 35.

The point of attack 26 for the safety handle is located at one end of the control lever 28. By actuating this safety handle 26, which, as has already been said, is located inside the vehicle, the control lever reaches its second pivoting position 28 ', which can be seen in FIG. 4. This corresponds to a second state of the lock, which can be referred to as the "locked state". In this case, the access authorization into the vehicle is withdrawn from the outside handle 25. In this second pivot position 28 'of the control lever, the driver 44 has shifted so far in the longitudinal guide 38 of the release lever 35 that it is no longer aligned with the working arm 49 of the external operating lever 46. When the lever 46 is actuated, the working arm 49 goes into nothing. This adjustment can be in the pivot position 28 'of the control lever via the already mentioned, acting on the pivot axis 27 of closure ^¬ medium 70 out, z. B. via a lock cylinder or a remote control device, which can become effective via the motor 50 '.

The lock according to the invention also has a third state, which can be seen in FIG. 5, where both handles 24, 25 have the access authorization withdrawn; there is a "security status" of the lock. In this locked state, the control lever would have to reach the third pivot position 28 "shown in FIG. 5. This can only be done from the outside of the door via the locking means 70 acting on the pivot axis 27. These locking means 70 also set one from FIG 6 visible rotary stop 56 relative to the control lever. The rotary stop 56 is normally in its effective position shown in FIG. 6 and protrudes into the path 58 of movement of the control lever between the second and third pivot positions 28 ', 28 ". At 57 6 denotes a surface of the component carrier 11 which can serve to slide the control lever z between its various pivot positions 28, 28 ', 28 ". The rotary stop 56 can extend down to the surface 57 and, if necessary, this too With its pivoting movement 58, the control lever 28 'therefore hits the stop 56 with its lever end 59. This is how the further movement becomes

58 to the third pivot position 28 "prevented. This 58 is only possible if an adjusting device 60 sets the rotary stop 56 ineffective. Then the rotary stop 56 is in a spaced position from the surface 57 of FIG. 6, which is why the control lever can easily pass from the second position 28 'to the position 28 ".

The actuating device 60 consists in the present case of an m electric magnet with a lifting or swiveling armature member 61. In the exemplary embodiment of FIG. 6, the armature member consists of an m folding armature member 61 in the direction of arrow 63, which is by a return spring

59 is charged. The return spring 59 pivots the armature member 61 away from the electromagnet 60. On the outside of the anchor member 61 is the rotary stop 56, which, as shown in FIG. 6, can be profiled. The electro magnet 60 is integrated into the plastic material 64 of the carrier. The coil body 62 of the electromagnet 60 is encased by wall parts 65 of the plastic material 64 and has a coil core 66 which interacts magnetically with the armature member 61. Only when the electromagnet 60 is switched on by the closure means which can be actuated from the outside of the vehicle, the armature member 61 is raised against the action of the return spring 59. Only then can the lever end 29 move into the third pivot position 28 ″ of FIG. 5 into the working gap below the electromagnet 50. This is indicated by dash-dotted lines in FIG. 6.

As can be seen, the reversal of the lock from the locking state according to the second pivoting position 28 'into the locking state according to the third pivoting position 28 "is only possible electrically. The electromagnet 60 must be able to be energized However, a mechanical solution is also used, in that, for example, a locking cylinder acts on the pivot axis 27. In the third pivot position 28 ", the lever end can be shaped by the profiling 6, the underside 67 of the rotary stop 56, which can be seen in FIG. the anchor member 61 are held in its ge desired end position. For this purpose, the anchor member 61 is again in its blocked position. By means of the return spring 59, the profiled underside 67 of the anchor member 61 is pressed against the control lever located in position 28 ", which is then supported on the surface 57 of FIG. 6.

Purpose, a return movement of the control lever from the third pivot position 28 "into the second pivot position 28 'illustrated by the arrow 68 in FIG. 6 is possible at any time; regardless of whether the blocking position of the rotary stop 56 shown in FIG. 6 is present The non-effective position of the rotary stop 56 would, as has already been described, be an electromagnetic control of the actuating device

60 require. The latter, however, would require the energization of the electromagnet, which in extreme cases, e.g. B. may fail due to failure of the power source. In the embodiment of Fig. 6, the anchor member

61 on its underside provided with the rotary stop 56, a profile 67 with a kind of casserole. The control lever can then be moved mechanically from its third pivoting position 28 ", for example via the locking cylinder already mentioned several times and engaging on the pivoting axis 27, into the second pivoting position 28 '. The lever end runs onto the oblique profile 67 and thereby lifts the rotary stop 56 sufficiently far against the action of the return spring 59 and slides underneath it. With the same means, the control lever can then also be moved back into a first pivoting position 28 according to FIG Then the vehicle can also be accessed via the outside handle and the door can be opened.

In the invention, opening the rotary latch is normally possible by means of the electrical devices 14 shown in FIG. 1. If necessary, however, mechanical components can be used for this purpose, which can be seen from the device 18 shown in FIGS. 3 to 6. One is therefore not dependent on the power supply of the vehicle, which is normally used for the convenience operation of the rotary latch lock; Even if the electrical supply fails, a rotary latch in the closed position can be easily moved mechanically via the direction 18 in its open position of FIG. 2 can be transferred. What is significant here is the compact design and the inexpensive manufacture and assembly of the components, which results in particular from integration of the actuating device 60 when producing the component carrier 11 from plastic 64. The rotary latch lock according to the invention is characterized by a surprisingly low weight, although it has the aforementioned diverse motor-driven actuation.

Reference symbol list:

Closing member (recording position in 20) 'release position of 10 (Fig. 2) component carrier stop for 20 in 11 part of the closing movement of 10' in 10 (Fig. 2) electrical devices on 16 of 11 sensor for 20 one side of 11 for 17 other side of 11 for 18 m echanic device on 11 channel in 11 for 10 rotary latch axis of 20 return spring for 20 radial breakout in 20 for 10 point of attack for inside handle point of attack for outside handle point of attack for securing handle inclined axis of 28 control levers, (first swivel position) '' second pivot position of 28 "third pivot position of 28 lever end of 28 pawl working arm of 30 adjusting arm of 30 spring for 30 axis of 30 release lever for 18 release finger of 35 for 18 arm of 35 Longitudinal guide, backdrop N ase of 30 for 36 storage levers, energy storage for 40 connecting link between 28, 35 linkage of 42 at 28 end of 42, driver internal actuating lever for 44 external actuating lever for 44 bearing pins of 45, 46, 35 working arm of 45 working arm of 46 D C -Motor for 32 and 40 'D CM otor for 27 control cams on 53' axis from 53 'worm on 50' worm on 50 'worm wheel to 50' worm wheel to 50 'breakthrough in 11 for 36 arrow of the rotary movement from 35 through 45 resp. 46 Rotating stop on 61 (Fig. 6) sliding guide effective surface on 11 for 28 movement path from 28 'in 28 "return spring for 61 actuating device, electro magnet armature element from 60 coil former from 60 arrow of the folding movement from 61 plastic material from 11 wall part from 64 for 60 spool core of 60 underside profile of 56 arrow of the return movement from 28 "in 28 'sliding block with 44 medium closure on 27

Claims

P at e n t a n spr u c h e:

Rotary latch lock, in particular for vehicles, which is arranged between a movable part, such as a vehicle door, and a stationary part, such as a door spar,

with a rotary latch (20) on one part and a closing member (10) on the other part,

the rotary latch (20) being rotatable between a closed position receiving the closing element (10) and an open position releasing the closing element (10 '),

and the catch (20) is spring-loaded (22) in the direction of its open position, but is normally held in its closed position by a pivotable pawl (30),

and the closing effective pawl (30) is also spring-loaded (33) in the direction of its locking position holding the catch (20),

but optionally via one of several handles (24, 25, 26) by means of a mechanical device (18) and / or by means of a motorized, in particular electric motorized device (14), into a release position releasing the catch (20),

the handles consist of an inside handle (24) arranged inside the vehicle, an outside handle (25) accessible from the outside of the vehicle, a securing handle (26) which can be actuated from the inside of the vehicle and / or a lock (70) which can be actuated from the outside of the vehicle, such as one m shooting cylinder, a remote control device, a key-less entry, or the like ~,

the securing handle (26) and the closure means (70) their actuation act on a common control lever (28) which reverses the lock between three states, namely

a first state allowing access to the vehicle both via the inner handle (24) and via the outer handle (25), de m the closed state of the lock, in the first pivoting position (28) of the control lever,

a second state that only withdraws the access authorization from the external handle (25), de m the locked state of the lock, in the second swivel position (28 ') of the control lever,

and a third state which withdraws the access authorization from the outside handle (25) and the inside handle (24), the locked state of the lock, in the third pivot position (28 ") of the control lever,

where the control lever (28) is connected (42) to a release lever (35) which, when an access-authorized handle (24 to 26) is actuated, transfers the pawl (30) to its release position with respect to the rotary latch (20) (55) .

2. Lock according to claim 1, characterized in that in addition to the release lever (35) two actuating levers (45, 46) are arranged, namely an inner actuating lever (45) connected to the inner handle (24) and one connected to the outer handle (25) External operating lever (46),

and a driver (44) is guided (38, 69) on the release lever (35) and connected (42) to the control lever (28),

that the control lever in its three pivot positions (28, 28 ', 28 ") brings the driver (44) in three positions,

in which the driver (44), corresponding to the three states of the Lock, with both, or with one or with neither of the two actuating levers (45, 46),

and that in the alignment case of the driver (44) the working movement of the respective actuating lever (45 or 46) aufnim mt and transfers to the release lever (35), which then pivots the pawl (30) into its release position (55).

3. Lock according to claim 1 or 2, characterized in that the

Release lever (35) has a link guide (38, 69) for one end (44) of a connecting member (42), which is the driver for both actuating levers (45, 46),

and that the other end of the link (42) is articulated (43) on the control lever (28).

4. Lock according to one or more of claims 1 to 3, characterized in that both actuating levers (45, 46) and possibly also the release lever (35) sit on the same bearing journal (47).

5. Lock according to claim 4, characterized in that the bearing pin (47) is coaxial with the axis (34) of the pawl (30).

Lock according to one or more of claims 1 to 5, characterized in that the mechanical device (18) on one side (17) and the latch (20) and the pawl (30) on the other side (16) of an m ulri unktLonal component carrier (11) are arranged

and that the release lever (35) with an angled release finger (36) passes through an opening (54) in the component carrier (11)

and that the release finger (36) is provided on the pawl (30) Engages behind nose (39).

Lock according to claim 6, characterized in that the motor device (14) for releasing the pawl (30) is also arranged on the side (16) of the component carrier (11) which has the catch (20) and the pawl (30) is

wherein the motorized device (14) also transfers the pawl (30) back into a standby position, from which the pawl (30) returns to its locked position holding the catch (20) when the door is closed.

Lock according to one of the claims 1 to 7, characterized in that the locking means (70) which can be actuated from the outside of the door, such as a locking cylinder which can be actuated by a key, acts on the pivot axis (27) of the control lever (28) and the control lever swiveled (58)

and that the control lever (28) is connected at its one lever end to the safety handle (26) inside the vehicle and can be blocked with its other lever end (29) in some cases.

Lock according to one or more of claims 1 to 8, characterized in that a rotary stop (56) can be set to be effective and ineffective via an adjusting device (60)

and that the effective rotary stop (56) protrudes into the movement path (58) of the control lever (28), as a result of which pivoting of the lever between certain pivot positions (28 ', 28 ") is blocked,

and that when the rotary stop (56) is ineffective, the pivoting movement (58) of the control lever is released.

10. Lock according to claim 9, characterized in that the control lever from the effectively set rotary stop (56) is prevented from its locking state determining the second pivot position (28 ') into its corresponding locking position of the lock third position (28 " ) to get.

11. Lock according to claim 10, characterized in that the control lever can be moved back (68) from its third position (28 ") to the second (28 ') even when the rotary stop (56) is set effectively.

12. Lock according to one or more of claims 9 to 11, characterized in that the rotary stop (56) is loaded in the direction of its blocking position in the path of movement (58) of the control lever and that the actuating device (70) against the rotary stop (56) the force load (59) moves in its ineffective position.

13. Lock according to one or more of claims 9 to 12, characterized in that the actuating device is an electromagnet (60) with an armature member (61) and the rotary stop (56) on the armature member (61) of this electromagnet ( 60) sits.

14. Lock according to claim 13, characterized in that the electric magnet (60) in the com ponent carrier (11) is integrated.

15. Lock according to claim 14, characterized in that the Ko mponentträger (11) made of plastic material (64) and the coil body (62) of the electric magnet in de m plastic material (64) formed wall parts (65) of Carrier (11) sits.