EP2279317B1 - Vehicle door lock with inside release lever - Google Patents

Abstract

The invention relates to a vehicle door lock having a rotary latch arrangement for locking doors of motor vehicles, in particular for tractors, having two rotatably mounted rotary latches, wherein for each rotary latch, provision is made of in each case one locking element which interacts therewith, which locking elements can interact with the rotary latches so as to lock the lock, and also having an actuating lever (35) by means of which the locking elements can be actuated so as to release the locking action, wherein the actuating lever (35) can be actuated from a first side of the lock (1) by being pressed, wherein the vehicle door lock (1) has an inside release lever (51) which can be actuated directly from an opposite side by being pressed, and wherein the actuating lever (35) can be driven by means of the inside release lever (51).

Description

The invention relates to a vehicle door lock with a rotary latch assembly for locking and closing doors of motor vehicles, especially doors of agricultural machinery, such as tractors.

Such a door lock, which is nahbetätigbar both from the vehicle interior and from the vehicle outside, is in Fig. 9 shown. This lock 200 has a rotary latch mechanism arranged in a lock case 201, wherein a locking pawl is provided for locking the two rotary latches 202. The pawl in turn is actuated by means of a U-shaped actuating lever 203 such that the lock is releasable. The actuating lever 203 engages in the lock case 201 and is designed in one piece and has a spatial shape, which allows the operating lever 203 in the installed state of the lock 200 both from the vehicle exterior, eg by means of a push-button mechanism, as well as the vehicle outside actuated by pressing is. For this purpose, the actuating lever on a handle 204 for gripping the hand from the vehicle interior. The storage of the actuating lever 203 takes place directly on the lock case 201.

This lock has proven itself. However, due to the relatively massive construction of the operating lever, the actuating forces to be applied for actuating the actuating lever are relatively high.

A similar lock is known from the DE-A1-102006012956 , which lock allows actuation by pushing from one side of the lock and pulling from the other side of the lock.

Another similar lock is known from the DE-U1-202007005292 wherein actuation of both sides of the lock takes place by pulling. These locks have lever mechanisms in which conventional leverage is achieved.

The object of the invention is to provide a vehicle door lock that can be actuated both by the vehicle interior and the vehicle exterior by pressing, which can be manufactured inexpensively and easily, is easy to assemble and in which the opening forces required to open and close are as low as possible ,

These objects are achieved with the features of claim 1. Advantageous developments of the invention are characterized in the subclaims.

Figur 1:

Einen zu einem Schlossdeckel parallelen Schnitt des erfindungsgemäßen Fahrzeugtürschlosses in verriegelnder, geschlossener Stellung

Figur 2:

Eine seitliche isometrische Ansicht des erfindungsgemäßen Fahrzeugtürschlosses ohne ein Halteblech

Figur 3:

Eine isometrische Explosionsdarstellung des efindungsgemäßen Fahrzeugtürschlosses

Figur 4:

Eine .drückerhebelseitige, längsseitige bzw. fanhrzeugaußenseitige Ansicht des erfindungsgemäßen Fahrzeugtürschlosses

Figur 5:

Eine Draufsicht des erfindungsgemäßen Fahrzeugtürschlosses

Figur 6:

Einen Querschnitt des erfindungsgemäßen Fahrzeugtürschlosses entlang der Linie A-A in Figur 5

Figur 7:

Einen, Seitenansicht eines Außenbetätigungsdrückerhebels und eines Innenbetätigungsdrückerhebels in betätigter Stellung

Figur 8:

Eine isometrische, unterseitige Ansicht eines Befestigungsbleches mit Hebelmechanismus

Figur 9:

Eine isometrische Ansicht eines Schlosses nach dem Stand der Technik

In the following the invention will be explained in more detail by way of example with reference to a drawing. Show it

FIG. 1:

A parallel to a lock cover section of the vehicle door lock according to the invention in the locked, closed position

FIG. 2:

A side isometric view of the vehicle door lock according to the invention without a retaining plate

FIG. 3:

An isometric exploded view of the efferungsgemäßen vehicle door lock

FIG. 4:

A lever lever side, longitudinal side or fanhrzeugaußenseitige view of the vehicle door lock according to the invention

FIG. 5:

A plan view of the vehicle door lock according to the invention

FIG. 6:

A cross section of the vehicle door lock according to the invention along the line AA in FIG. 5

FIG. 7:

A side view of an external operating lever and an internal lever lever in the actuated position

FIG. 8:

An isometric, underside view of a mounting plate with lever mechanism

FIG. 9:

An isometric view of a lock of the prior art

The door lock 1 according to the invention comprises for receiving the lock mechanism a cuboid lock case 2 with a, preferably plate-shaped, bottom wall 3, a bottom wall 3 opposite and parallel to this, cover 4, two mutually parallel and perpendicular to the bottom wall 3, preferably plate-shaped, longitudinal walls 5, 6 and two mutually parallel and perpendicular to the longitudinal walls 5,6, preferably plate-shaped, transverse walls 7,8 on ( Fig.1-7 ). The cover 4 also preferably has stiffening ribs 9 and is preferably integrally formed with the longitudinal and transverse walls 5,6,7,8.

In the lock case 2 is a continuous through the bottom wall 3, in the lid 4 and in the longitudinal wall 6 extending into groove-shaped locking pin recess or -aussparung 10, which creates space for receiving a door lock pin 11 and the locking pin 11, whereupon will be discussed in more detail below. The locking pin receptacle 10 is symmetrical to a transverse center plane In particular, the Schüeßbolzenaussparung 10 in a view perpendicular to the lid 4 has a V-shaped course on. Conveniently, the lid 4 and the longitudinal wall 6 are formed on both sides of the locking pin receptacle 10 slightly curved outwardly, so that additional guide or Zentrierungsnasen 46 are formed on both sides of the locking pin 10, which facilitates the centering and insertion of the locking pin 11 in the locking pin holder 10.

Furthermore, the lock case 2 has two attachment recesses 47 extending through the lock case 2 from the lid 4 to the bottom wall 3, which are interspersed with u.a. to attach the lock 1 to a vehicle door. The fastening recesses 47 are expediently arranged on both sides adjacent to the locking pin projection 10 and preferably symmetrically with respect to the transverse center plane 12.

Within the lock case 2, two rotary traps or rotary parts 14a, 14b are arranged. The rotary traps 14a, 14b are plate-shaped elements, for example plates made of steel, which extend parallel to the bottom wall 3 and slightly spaced from it, and preferably have an identical spatial form. In addition, the rotary traps 14a, 14b are arranged and formed symmetrically with respect to the transverse center plane 12. At each rotary latch 14a, 14b a locking lug 17 is formed with a groove 18 each. The recesses 18 of the two rotary traps 14a, 14b are arranged facing each other and serve to receive the perpendicular to the bottom wall 3 extending and cylindrically shaped locking bolt 11, which will be discussed in more detail below, in an open lock position, the locking lugs 17 pass through a in which the locking bolt recess 10 having the longitudinal wall 6 provided, perpendicular to the transverse center plane 12 extending slot 19 (FIG. Fig. 3 . 4 ) and project laterally beyond the longitudinal wall 6. The slot 19 is also symmetrical to the transverse center plane. 12 formed and extends parallel to the bottom wall 4 and seen from this approximately more than the amount of the thickness of the two rotary traps 14a, 14b in the longitudinal wall 6 inside. The slot 19 also has, preferably perpendicular to the bottom plate 3 aligned, slot edges 19 a ( Fig.1 . 3 . 4 ), which serve as abutment edges for each one of the respective groove 18 opposite nose rear wall 20 of the locking lugs 17, what later is explained in more detail. Furthermore, a circumferential wall 21 of the rotary traps 14a, 14b each have two adjacent first and second rotary latch noses 22, 23 which are arranged essentially diametrically opposite the locking lugs 17. Between the two rotary latch detents 22,23 also a first, suitably V-shaped, recessed recess 24 is formed, which is preferably formed undercut. A second, likewise expediently V-shaped, rotary latch detent recess 25 is formed by the second rotary latch detent nose 23 and the peripheral wall 21 adjoining the second rotary detent detent nose 23.

The two rotary traps 14a, 14b are also each rotatably mounted in the lock case 2 about a rotary shaft rotation axis 16, which is perpendicular to the bottom wall 3. For this purpose, the rotary traps 14a, 14b each have a central bearing recess 15, with which the rotary traps 14a, 14b are mounted on a lock bushing 2 which extends through the lock case 2, which will be discussed in more detail below. Expediently, the rotary latches 14a, 14b are held close to the longitudinal wall 6 having the locking bolt recess 10 and symmetrically with respect to the transverse center plane 12 of the door lock 1. In addition, a rotary latch spring or rotary coil spring 26 is expediently provided per rotary latch 14a, 14b. The Drehfallenfedem 26, based on both the rotary traps 14a, 14b and on the Schtosskasten 2 from and have a tendency to keep the rotary traps 14a, 14b in the open position, so press the mutually facing locking lugs 17 apart or drive the Rotary traps 14a, 14b against the closing rotational direction S about the rotary shaft pivot axes 16 at.

For locking the two rotary latches 14a, 14b, the door lock 1 according to the invention has two latching locking elements, in particular latching levers or pawls 27a, 27b, which hold the rotary latches 14a, 14b in a closed position (FIG. Fig.1 ) or a pre-locked position (not shown) or release the two rotary latches 14a, 14b (not shown). The two pawls 27a, 27b are also plate-shaped, for example made of steel, and extending parallel to the bottom wall 3 extending and also have a substantially elongated and preferably identical spatial form, one end each a latch actuating portion 28 and the other end a storage portion 29 is provided. The storage section 29 in each case has a continuous recess with which the pawls 27a, 27b are rotatably mounted on, preferably hollow-cylindrical, pawl storage bolts 30. Here are the two Ratchet pin 30 expediently firmly connected to the bottom wall 3. The pawls 27a, 27b are thus rotatably mounted about a pawl rotation axis 31, which is perpendicular to the bottom wall 3, in particular pivotable about the pawl rotation axis 31. In addition, the two Klirikenlagerungsbotzen 30 preferably in each of the transverse walls 7,8 and the longitudinal wall 5 formed corner areas symmetrically with respect to the transverse center plane 12 of the door lock 1 spaced from each other, so that the pawls 27a, 27b designed and arranged symmetrically to the transverse center plane 12 are.

The pawl actuating portion 28 of the two pawls 27a, 27b each have an integrally formed pawl latching nose 32, which is designed to the rotary trays 14a, 14b indicative and is formed substantially in the manner of a sawtooth. In addition, the pawls 27a, 27b are arranged spring-loaded so that their gegenbetiegend arranged Klinkenbetätigungsabschnitte 28 are pressed in the direction of the rotary traps 14a, 14b or against these. For this purpose, for example, a respective pawl spring 33 is provided, which is supported both on the lock box 2 and on the respective pawl 27a, 27b.

At the actuation section end of the pawls 27a, 27b, there is respectively provided an actuation projection or support projection 34, which likewise extends in the direction of the rotary traps 14a, 14b. This actuating projection 34 serves as a support and engagement surface for an actuating lever 35 with which the pawls 27a, 27b can be driven about the pivot axis 31 in a direction K kinkbetätigungsrichtung. So that the actuating lever 35 can engage in the lock case 2, an engagement recess 36 is provided in the lid 4, which is dimensioned such that an operating portion 39 of the operating lever 35 reach through and the operating lever 35 can perform its pivotal movement unhindered.

The actuating lever 35 is also a preferably plate-shaped element, whose expediently parallel actuating lever side walls 37 are perpendicular to the bottom wall 3 of the lock case 2. In addition, the operating lever 35 has a circumferential Betätigungshebelumfangswandung 42 with a front wall 42 a and a rear wall 42 b. Expediently, the actuating lever 35 also has lateral stiffening ribs 40. Furthermore, the actuating lever 35 is preferably formed substantially elongated. The actuating lever 35 also has at one end an actuating portion 39. Ande Mendig On the one hand, a protruding stop lug 38 directed away from the actuating section 39 is provided, which is designed as an extension of the front wall 42a and has a stop lug rear edge 43 facing away from the front wall 42a. Furthermore, two entrainment pins 44 are provided at the other end, which protrude on both sides laterally, expediently perpendicular, from the actuating lever side surfaces 37. The two driving pins 44 are arranged adjacent to the rear wall 42b. The driving pins 44 are also arranged opposite or adjacent to the stop lug 38.

The operating portion 39 is widened with respect to the Betätigungshebelseitenwandungen 37a, 37b or laterally projecting on both sides thereof formed by the actuating lever 35 is on the actuation side end T-shaped. The operating portion 39 serves to operate the pawls 27a, 27b. For this purpose, the actuating portion 39 is in operative connection with the two actuating projections 34 of the pawls 27a, 27b. The pawls 27a, 27b are thereby directly drivable by means of the actuating lever 35 in the pawl actuating direction K or are directly drivable with this in the pawl actuating direction K in combination. In particular, the actuating portion 39 abuts against the two actuating projections 34 ( Fig. 1 ), which will be discussed in more detail below.

The actuating lever 35 is rotatably mounted about an actuating lever pivot axis 41, which is perpendicular to the pawl rotation axes 31 and parallel to the longitudinal walls 5,6, ie perpendicular to the transverse center plane 12. The operating lever pivot axis 41 is also perpendicular to the actuating lever side surfaces 37th Therefore, the actuating lever 35th one of the one to the other Betätigungshebelseitenwandung 37 continuous storage recess 49 which is provided between the actuation side and the stop end of the actuating lever 35. Conveniently, at least one, preferably two Betätigungshebeifernern 45 are present, which have the tendency to rotate the actuating lever 35 against an operating lever actuating direction B. In addition, the front wall 42a is slightly widened in the region of the bearing recess 49, so that two stop wings 50 are formed laterally on both sides of the actuating lever side walls 37, expediently perpendicularly. The stop wings 50 serve as an abutment for the rotational movement of the actuating lever 35 against the Betätigungshebelbetätigungsrichtung B or to the rotational movement of the actuating lever 35 against the Betätigungshebelbetätigungsrichtung B to limit what will be discussed later.

The actuating lever 35 is an external release lever, which is actuated in the installed state of the door lock from the vehicle exterior by pressing. When not installed, the vehicle exterior represents a first (longitudinal) side 81 of the lock 1, in particular the side on which the longitudinal edge 5 of the lock case 2 is arranged. For this purpose, an unillustrated, known per se push-button mechanism is present, by means of which the actuating lever 35 in the actuating lever actuating direction B can be driven. In particular, the push-button mechanism engages in a push-button operation direction D at a suitable position of the front wall 42a of the operation lever 35.

Furthermore, the door lock 1 according to the invention has an internal release lever 51, which can be actuated from the vehicle interior by pressing in the installed state of the door lock. When not installed, the vehicle interior is a second, the first side opposite (longitudinal) side 82 of the lock 1, in particular the side on which the longitudinal edge 6 of the lock case 2 is arranged. The Innenauslösehebel 51 is also suitably elongated and has two mutually parallel Innenauslösehebelseitenflächen 52 and to the side surfaces 52 perpendicular, circulating Innenauslösehebelumfangswandung 53. The Innenauslösehebel 51 also has a front 54 and one of these opposite back 55. The Innenauslösehebel 51 has at one end an Innenauslösehebelbetäti, transmission section 56 and the other end, a handle 57 on. The gripping part 57 serves to grasp by hand and pivot the Innenauslösehebels 51 in a Innenauslösehebelbetätigungsrichtung 1, which will be discussed in more detail below. For this purpose, the Innenauslösehebel 51 in the region of the actuation-side end, ie in the Innenauslösehebelbetätigungsabschnitt 56 a Innenauslösehebellagerungsbohrung 58, so that the Innenauslösehebel is rotatably mounted in the Innenauslösehebelbetätigungsabschnitt 56. A Innenauslösehebeldrehrehachse 59 is parallel to the actuating lever pivot axis 41, but not coaxial with this. In particular, the inner release lever 51 is mounted with respect to the bottom wall 3 above the Betätigungshebeis 35. Conveniently, there is also one, preferably, two internal release lever pivoting springs 60 which tend to rotate the inside release lever 51 against an inside release lever actuating direction 1. Of the Interior trip lever 51 is thus with the Innenauslösehebeifedern 60 to the Innenauslösehebeldrehachse. 59 against the Innenauslösehebelbetätigungsrichtung 1 drivable in conjunction.

On the front side 54 of the inner release lever 51, a fork 61 with two parallel fork arms 62 is provided in the region of the Innenauslösehebelbetätigungsabschnitt 56. The fork arms 62 are formed projecting from the Innenauslösehebelumfangswandung 53 and arranged spaced apart such that between them, the actuating lever 35 received, in particular laterally guided, can be. In particular, the fork arms 62 are formed with respect to the Innenauslösehebeldrehachse 59 substantially radially projecting. In addition, the feed arms 62 each have an actuating edge 63 facing the rear side 55 of the inner trigger lever 51. Conveniently, a lever receiving recess 64 for receiving the actuating lever 35 is provided between the two fork arms 62, the fork arms 62 are used to actuate the operating lever 35 by means of the Innenauslösehebels 51, which will be discussed in more detail below.

Furthermore, the internal release lever 51 in the region of the Innenauslösehebelbetätigungsabschnitt 56 on a stop lug 65, which is arranged in the circumferential direction adjacent to the actuating edge 63 and also with respect to the Innenauslösehebefdrehachse 59 is arranged substantially radially projecting. The stop lug 65 is also expediently arranged centrally with respect to the width of the inner trigger lever 51. The width of the Innenauslösehebels 51 corresponds to the distance between the two side surfaces 52 from each other.

As already explained, the two levers 35, 51 are connected rotatably about their respective axes of rotation 41, 59 with the lock case 2. For this purpose, the levers 35, 51 are connected, for example, directly to the cover 4 by mounting lugs (not shown) projecting from the cover 4 on the cover 4 in a manner known per se, the bearing bores for mounting the levers 35, 51 and bearing bolts inserted therein have, on which the levers 35, 51 are mounted.

According to a further aspect of the invention, however, the levers 35, 51 are not mounted directly on the lock case 2, but on a sheet metal 66 (FIG. Fig. 3 ).

The plate 66 is preferably plate-shaped and preferably cuboid-shaped and has a, suitably flat, top surface 67, a perpendicular and expediently also flat bottom plate 68, and two vertical longitudinal edges 69a, b and two transverse to the longitudinal edges of the plate 69 and the top plate 67 vertical transverse edges 70 on. Furthermore, the sheet 66 has means for the rotatable mounting of the two levers 35, 51, in particular a bearing block or bearing block 71, on. The bearing block 71 has two mutually parallel bearing lugs or plates 72 which extend perpendicular to the sheet metal top 67 and away therefrom and parallel to the transverse edges of the sheet metal 70. In addition, the bearing block 71 has a likewise perpendicular to the top plate 67 and extending away from this end plate 73. The end plate 73 connects to the bearing tabs 72 to this and closes the bearing block 71 to the one sheet longitudinal edge 69a down. For opposite sheet longitudinal edge 69b out of the bearing block 71 is open, where two stops 74 are arranged there, which also extend away from the top plate 67. The stops 74 serve as an abutment for the rotational movement of the actuating lever 35 against the Betätigungshebelbetätigungsrichtung B. They thus limit the rotational movement of the actuating lever 35 against the Betätigungshebelbetätigungsrichtung B. Furthermore, the bearing block 71 with the plate 66 is fixed and preferably releasably connected. In particular, the bearing block 71 is screwed to the plate 66, preferably two countersunk screws 83 (FIG. Fig. 9 ) be used. For this purpose, the bearing block 71, for example, a mounting plate 84, which extends perpendicular to the two plates 72, 73 at this bottom side, at the thus the sheet 66 facing side of the bearing block 71, closes. In the mounting plate 84 also two fastening threads 85 and in the sheet 66 two further mounting recesses 86 are provided, on which the heads of the countersunk screws 83 are supported.

The bearing block 71 is preferably made of plastic and is preferably produced by casting or extrusion. Conveniently, the plates 72, 73 84 and the stops 74 are firmly connected to each other, in particular in one piece or in one piece.

Each support plate 72 also has a continuous operating lever mounting recess for supporting the actuating lever 35 and a continuous inner trigger lever mounting recess for supporting the inner trigger lever 51.

The Innenauslösehebellagerungsaussparungen are preferably disposed adjacent to the end plate 73 and the Betätigungshebellagerungsaussparungen are preferably disposed adjacent to the stops 74. The Innenauslösehebellagerungsaussparungen are arranged with respect to the top sheet 67 obliquely above the Betätigungshebellagerungsaussparungen. In the storage recesses in each case a bearing pin or a bushing for the storage of the levers 35, 51 is introduced, on which the levers 35, 51 are mounted. The levers 35, 51 are arranged between the two bearing plates 72. In particular.- the levers 35, 51 are guided laterally between the bearing plates 72. For this purpose, the bearing plates 72 in the area of Innenauslösehebellagerungsaussparungen and where the Innenauslösehebel 51 is pivoted or pivoted by the amount of the width of the Innenauslösehebels 51 from each other and in the range of Betätigungshebellagerungsaussparungen by the amount of width of the actuating lever 35 from each other. The distance between the bearing plates 72 thus decreases towards the actuating lever 35, for which purpose the bearing plates 72 preferably converge towards one another in a kink. The width of the actuating lever 35 corresponds to the distance between the two side walls 37 from each other.

In addition, the levers 35, 51 are arranged so that the front wall 42a of the operation lever 35 faces the front side 54 of the inside release lever 51. Furthermore, the two actuating edges 63 of the fork arms 62 bear on the two driving pins 44. As a result, the actuating lever 35 is via the fork arms 62 and the driving pins 44 with the Innenauslösehebel 51 in Betätigungshebelbetätigungsrichtung B drivable in direct operative connection. The operating lever 35 is thus drivable by means of the Innenaustösehebels 51 in Betätigungshebelbetätigungsrichtung B.

So that the actuating lever 35 can pass through the plate 66 from the upper side 67 to the lower side 68 with its actuating section 39, the plate 66 also has a, in particular groove-shaped, through-passage recess (not shown). The. Passage recess is e.g. introduced into the sheet longitudinal edge 69b, where the stops 74 are provided.

Furthermore, the fastening plate 66 has two fastening recesses 75, which extend from the sheet metal upper side 67 to the underside of the metal sheet 68 and are expediently arranged adjacent to the bearing plates 72. The mounting recesses 75 serve to receive fastening bushes 48 which are in the Mounting recesses 75 are introduced. The mounting bushings 48 have an internal thread and a bushing edge 76, with which they are supported on the sheet metal top 67.

Furthermore, the sheet 66 is preferably made of metal, preferably steel.

The attachment of a door lock is usually done by attaching the lock to a provided in the door holding plate 77 (FIG. Figure 3 ). In the present case, the holding plate 77 also has fastening recesses 78 for receiving the fastening bushes 48 and a passage recess 79 for the actuating lever 35.

By means of the mounting plate 66, the entire lever mechanism consisting of the actuating lever 35 and the inner trigger lever 51 can now be fastened to the lock case 2 and the retaining plate 77 as a compact unit on the cover side. For this purpose, the mounting recesses 75; 78; 47 arranged in pairs aligned with each other and the mounting sockets 48 in the mounting recesses 75; 78: 47 introduced. The retaining plate 77 is thereby positioned between the cover 4 and the mounting plate 66. From the bottom wall 3 forth screws 80 are then screwed into the mounting sockets 48 and the mounting plate 66, the retaining plate 77 and the lock case 2 firmly but detachably connected.

The mode of operation and the actuation of the door lock 1 according to the invention are explained in more detail below:

In an open position of the door lock 1 (not shown) is the locking pin 11 outside of the lock case 2 between the grooves 18 of the two rotary traps 14a, 14b. The locking lugs 17 penetrate the slot 19 and are pressed by the force of Drehfallenfedem 26 with their Riegeinasenrückwändungen 20 against serving as a stop and the bottom wall 3 perpendicular slot edges 19a. Furthermore, the pawls 27a, 27b bear against the circumferential wall 21 adjacent to the first latching lugs 22 under the pressure of the pawl torsion springs 33 with their pawl latching noses 32.

The actuating lever 35 engages with its actuating portion 39 through the two Durchgriffsausparungen 79 and the Einriffsaussparung 36 in the lock case 2 a and is in the open position of the door lock 1 according to the invention spring loaded with its stop wings 50 on the stops 74 and with its operating portion 39 on the rounded actuating projections 34 of the pawls 27a, 27b. The Innenauslösehebel 51 is also spring-loaded with the Gabelarmbetätigungskanten 63 to the driving pin 44, without operating the operating lever 35, however. The inner release lever 51 is also due to the force of the Innenauslösehebelfedem 60 with its rear Innenauslösehebelumfangswandung 53 inside of the end plate 73 at ( Fig. 1 . 6 ).

If the door is closed, then the locking pin 11 presses against the grooves 18 of the rotary traps 14a; 14b and the rotary traps 14a; 14b are pivoted counter to the pressure of the rotary latch springs 26 and partly the pawl torsion springs 33 in the closing direction S about the rotary pivot axes 16, so that the Locking lugs 17 are moved toward each other and partially enclose the locking pin 11, wherein the. Riegelinasen 17 then with the Söhließbolzen 11 partially innehalb the Schüeßbolzenaussparung 10 of the lock case 2 are. Due to the rotational movement also reach the latch detents 32 in the first recesses 24 and latch there due to the spring pressure of Klinkendrehfedem 33 (safety catch), In this position, the two rotary traps 14a, 14b locked and can no longer by the force of Drehfallendrehfedem 26 opposite Closing direction S are turned. In this case, the locking lugs 17 are arranged turned towards each other so far that the locking pin 11 can no longer escape from the region between the grooves 18. The actuating lever 35 remains spring loaded in its previous position. However, since the pawls 27a, 27b are spaced slightly farther from the rotary latches 14a, 14b than in the open position of the door lock 1, the actuating lever 35 is not necessarily located with its operating portion 39 on the actuating projections 34.

Will the rotary latches 14a; 14b further rotated by the pressure of the locking pin 11 on the grooves 18 in the closing direction of rotation S, reach the latch pawls 32 in the respective second recesses 25 of the rotary trays 14a; 14b and engage there due to the spring force of Ktinkendrehfedern 33 a. The rotary latches 14a, 14b are then in the fully closed position (FIG. Fig.1 ), in which the two rotary traps 14a: 14b are again locked and can not be rotated by the force of the rotary shaft torsion springs 26 opposite to the closing direction of rotation S. This will the lock 1 held in the closed position. The actuating lever 35 is in the closed position expediently again with its actuating portion 39 on the actuating projections 34.

For opening the door lock 1 according to the invention from the pre-latched safety catch or from the closed position ( Fig.1 ), the operating lever 35 is actuated by being pivoted about the operating lever pivot 41, for example against the force of the operating lever springs 45, in the operating lever operating direction B, so that the operating portion 39 is moved away from the rotary latches 14a, 14b. This is done either directly from the vehicle exterior by operating the push-button mechanism or indirectly from the interior of the vehicle by pressing the handle portion 57 of the Innenauslösehebels 51 so that it is pivoted in Innenauslösehebelbetätigungsrichtung I. In this case, the actuating edges 63 of the fork arms 62 engage the driving pin 44, slide along it, and take it with, so that the operating lever 35 is pivoted in Betätigungshebelbetätigungsrichtung B. The operating lever 35 and the Innenauslösehebel 51 are thereby pivoted toward each other, wherein the operating lever 35 is partially received between the fork arms 62 and is guided between them.

The pivoting of the operating lever 35 causes the Botätigurngsvorsprünge 34 are taken from the applied thereto operating portion 39 and thereby the pawls 27a, 27b far against the pressure of the pawl torsion springs 33 and, due to the undercut execution of the Drehfallenrastnasen 22,23 against the pressure of the rotary latch springs 26 are rotated in Klinkendrehrichtung K until the latch lugs 32 are completely pushed out of the first and second recesses 24,25. Then, the rotary traps 14a, 14b snap under the pressure of the rotary latch springs 26 in their open position back until the Nasenrückwandungen 20 abut the slot edges 19a of the slot 19. The locking pin 11 is pushed out of the lock case 2 by the grooves 18. After releasing the operating lever 35 and the Innenauslösehebels 51 snap this by the pressure of the respective springs 45; 60 back to their original positions.

The pivoting movement of the internal release lever 51 in the lifting release actuating direction 1 is limited by the fact that the stop lug 65 of the inside release lever 51 abuts the end plate 73 on the inside. Also the pivoting movement the operating lever 35 in Betätigungshebelbetätigungsrichtung B is limited in this position, since the operating lever 35 in an overstroke in which it is further pivoted in Betätigungshebelbetätigungsrichtung B than necessary for actuation pivots into the lever receiving recess 64 and abuts with its Anschlagagnasenrückkante 43 on the lever receiving trough 64 ,

The Innenauslösehebel 51 and the actuating lever 35 are thus coupled to each other in operative connection, that the rotational movement of the Innenauslösehebelbetätigungsrichtung I on the operating lever 35, in particular without delay, is transferable such that the actuating lever 35 is pivoted in Betätigungshebelbetätigungsrichtung B. The Innenauslösehebelbetätigungsrichtung I and the Betätigungshebelbetätigungsrichtung B are in opposite directions. In particular, the operating lever 35 is driven by the rotational movement of the Innenauslösehebels 51 in Innenauslösehebelbetätigungsrichtung I in Betätigungshebelbetätigungsrichtung B. Furthermore, the coupling is designed so that the rotational movement of the operating lever 35 in the operating lever operating direction B is not transferable to the Innenauslösehebel 51. In particular, the inside release lever 51 is not drivable in the inside release lever operation direction 1 by the rotational movement of the operation lever 3.5 in the operation lever operating direction B. Only the operating lever 35 is therefore drivable with the push-button mechanism in connection. As a result, only small forces are necessary for pressing the actuating lever 35.

The coupling on the driving pins and the fork arms has the advantage that the direction is reached for pressing, so the lock from the outside and inside can be actuated by pressing on the one hand. Characterized in that the actuating lever is pivoted into the Innenauslösehebel telescopically, the arrangement is very compact: In addition, the operating lever is additionally positively guided in the Innenauslösehebel, since its width preferably corresponds to the distance of the fork arms from each other. In addition, the lever construction is symmetrical to the center plane, so that the assembly is facilitated. Furthermore, the symmetrical arrangement has the advantage that tilting of the lever is avoided.

It is also advantageous that the entire lever mechanism, which is necessary for actuating or unlocking the lock according to the invention, by the external storage on a specially provided mounting plate as an entire unit can be attached to the lock case. This type of storage is of course not limited to the described, twice nahbetätigbaren lever mechanism. This makes it possible for differently actuable locks to use uniform lock cases with uniform components arranged therein and, depending on the desired type of actuation, to secure the respective lever mechanism to the lock case without any additional adjustments being required. Only the actuating portion of the actuating lever must be designed so that it can interact with the components arranged in the lock case. The rest of the lever mechanism can be designed arbitrarily. For example, a remote control device may be present, by means of which the actuating lever from a distance, eg from the vehicle interior, can be actuated. In addition, of course, only a rotary latch with a pawl may be present or only a pawl for both rotational positions may be present. However, the construction described has the advantage that only small forces for actuating the lock are necessary and a symmetrical structure is possible, which considerably simplifies the production and also the assembly, since there is no longer the risk that the two rotary traps will be installed interchanged ,

Another advantage is that the vehicle door lock according to the invention has only a small number of individual components and still only small forces to operate the lock are necessary. Because the coupling points or areas of the two levers, so e.g. the distance of the driving pins from the axis of rotation of the actuating lever, are chosen so that the lever mechanism is very smooth.

Claims (20)

1. A vehicle door lock having a rotary-latch arrangement for locking doors of motor vehicles, in particular for tractors, having

   a. two rotatably mounted rotary latches (14a; 14b), wherein for each rotary latch (14a; 14b) there is provided a respective catch-type blocking element (27a; 27b) cooperating therewith, these elements (27a; 27b) being able to cooperate with the rotary latches in a manner so as to lock the lock,
   characterised by

   b. an actuating lever (35) rotatable about an actuating lever rotational axis (41), wherein the blocking elements (27a; 27b) are actuatable directly by means of the actuating lever (35) by rotation of the actuating lever (35) in an actuating lever actuating direction (B), so that the locking is releasable, wherein the actuating lever (35) can be actuated, from a first side (81) of the lock (1), by pushing, and

   c. an inner release lever (51), rotatable about an inner release lever rotational axis (59) parallel to but not coaxial with the actuating lever rotational axis (41), which is actuatable directly, from a second side (82) opposite the first side (81), by pushing, namely is rotatable in an inner release lever actuating direction (I),
   wherein

   d. the actuating lever (35) is drivable in the actuating lever actuating direction (B) by means of the inner release lever (51) through rotary motion of the inner release lever (51) in the inner release lever actuating direction (I), wherein the actuating lever actuating direction (B) and the inner release lever actuating direction (I) are counter to one another,

   e. one end of the actuating lever (35) has an actuating portion (39) for actuation of the blocking elements (27a, 27b) and the other end thereof has means for coupling to the inner release lever (51),

   f. wherein one end of the inner release lever (51) has an inner release lever actuating portion (56) for actuation of the actuating lever (35) and the other end thereof has a handle (57) for manual pivoting of the inner release lever (51) in the inner release lever actuating direction (1).
2. A vehicle door lock according to claim 1, characterised in that the inner release lever (51) and the actuating lever (35) are uncoupled from one another in such a manner that the inner release lever (51) is not drivable in the inner release lever actuating direction (I) by the rotary motion of the actuating lever (35) in the actuating lever actuating direction (B).
3. A vehicle door lock according to any one of the preceding claims, characterised in that the actuating lever (35) has two parallel actuating lever lateral walls (37) and a circumferential actuating lever peripheral wall (42) with a front wall (42a) and a rear wall (42b).
4. A vehicle door lock according to claim 3, characterised in that at the other end, the actuating lever (35) additionally has a projecting stop lug (38) directed away from the actuating portion (39), which stop lug (38) is in the form of an extension of the front wall (42a) and has a stop lug rear edge (43) remote from the front wall (42a).
5. A vehicle door lock according to any one of the preceding claims, characterised in that two entrainment pins (44) are provided as means for coupling, which entrainment pins (44) project laterally on either side, advantageously perpendicularly, from the actuating lever lateral surfaces (37).
6. A vehicle door lock according to any one of the preceding claims, characterised in that the actuating lever rotational axis (41) is perpendicular to catch rotational axes (31) about which the blocking elements (27a; 27b) are rotatable.
7. A vehicle door lock according to any one of the preceding claims, characterised in that the inner release lever (51) has two parallel inner release lever lateral surfaces (52) and a circumferential inner release lever peripheral wall (53) perpendicular to the lateral surfaces (52).
8. A vehicle door lock according to any one of the preceding claims, characterised in that the inner release lever (51) has a front side (54) and a rear side (55) opposite thereto.
9. A vehicle door lock according to any one of the preceding claims, characterised in that the inner release lever (51) is rotatably mounted in the inner release lever actuating portion (56).
10. A vehicle door lock according to any one of the preceding claims, characterised in that the inner release lever (51) is mounted above the actuating lever (35) in relation to a base wall (3) of a lock case (2) of the lock (1).
11. A vehicle door lock according to one or more of the preceding claims, characterised in that in the region of the inner release lever actuating portion (56), the inner release lever (51) has a fork (61) with two parallel fork arms (62), wherein
    the actuating lever (35) is advantageously driveable by means of the inner release lever (51) via the fork arms (62) and the entrainment pins (44), wherein preferably
    the fork arms (62) project from the inner release lever peripheral wall (53) and are arranged at a distance from one another in such a manner that the actuating lever (35) partially is received therebetween, in particular partially is laterally guided therebetween.
12. A vehicle door lock according to claim 11, characterised in that the fork arms (62) each have an actuating edge (63) facing the rear side (55) of the inner release lever (51), wherein the actuating edges (63) are in an operative connection with the entrainment pins (44).
13. A vehicle door lock according to any one of the preceding claims, characterised in that the inner release lever (51) has a stop lug (65), in particular in the region of the inner release lever actuating portion (56), which stop lug (65) is preferably arranged adjacent to the actuating edge (63) in the circumferential direction and is preferably arranged to project substantially radially in relation to the inner release lever rotational axis (59).
14. A vehicle door lock according to any one of claims 11 to 13, characterised in that a lever receiving depression (64) is present between the two fork arms (62), the actuating lever (35) being able to pivot into the depression (64) upon actuation.
15. A vehicle door lock according to any one of the preceding claims, characterised in that the actuating lever (35) and the inner release lever (51) are pivotable towards one another upon actuation of the inner release lever (35).
16. A vehicle door lock according to any one of claims 12 to 15, characterised in that the inner release lever (51) contacts the entrainment pins (44) by means of the fork arm actuating edges (63) in the non-actuated state, without however actuating the actuating lever (35).
17. A vehicle door lock according to one or more of claims 13 to 16, characterised in that the pivoting motion of the inner release lever (51) in the inner release lever actuating direction (I) can be restricted by means of the stop lug (65) of the inner release lever (51), which stop lug (65) contacts the inner side of the end plate (73) in the event of maximum pivoting.
18. A vehicle door lock according to one or more of claims 4 to 17, characterised in that the pivoting motion [of the] actuating lever (35) in the actuating lever actuating direction (B) can be restricted in that the actuating lever (35) contacts the lever receiving depression (64) by means of a stop lug rear edge (43) in the event of maximum pivoting.
19. A vehicle door lock according to any one of the preceding claims, characterised in that the vehicle door lock (1) has a metal sheet (66) on which there is mounted a lever mechanism having the inner release lever (51) and the actuating lever (35), and by means of which metal sheet (66) the lever mechanism is secured as a unit to the lock box (2) of the lock (1), wherein
    the metal sheet (66) preferably has a through cut-out, in particular slot-shaped, through which the lever mechanism engages the lock box (2).
20. A vehicle door lock according to any one of the preceding claims, characterised in that the vehicle door lock (1) has a push button mechanism by means of which the lock can be actuated from the first side (81).

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