WO2009056120A2

WO2009056120A2 - Door lock for a motor vehicle

Info

Publication number: WO2009056120A2
Application number: PCT/DE2008/001780
Authority: WO
Inventors: Ludger Graute; Volker Westerwick; Thorsten Bendel; Ulrich Nass
Original assignee: Kiekert Aktiengesellschaft
Priority date: 2007-11-02
Filing date: 2008-11-03
Publication date: 2009-05-07
Also published as: WO2009056129A3; EP2247810B1; DE102007052889A1; DE202008003815U1; EP2229493B1; WO2009056130A3; DE202008012241U1; WO2009056129A2; EP2229493A2; EP2247810A2; WO2009056120A3; WO2009056130A2

Abstract

The invention relates to a door lock for a motor vehicle, said lock comprising a locking mechanism (3, 4) and a closing/opening mechanism (10 to 18) which impinges the locking mechanism (3, 4) by means of at least one motor drive (10, 11, 12). The invention is characterized in that the motor drive (10, 11, 12) is mounted above an insertion opening in a plane that is substantially perpendicular to the plane of the locking mechanism.

Description

Motor vehicle door lock Description:

The invention relates to a motor vehicle door lock, with a locking mechanism, and with a closing / opening device, which acts on the locking mechanism by means of at least one motor drive.

Zuzieh- / opening devices are known both in the form of a closing aid and an opening aid. Thus, DE 20 2004 001 850 U1 is concerned with such a closing aid, which has a closing pawl which engages on a pull-in contour of the locking mechanism. As a result, a catch of the catch and consequently the catch as a whole can be transferred by a motor from a prelocking position into a main closing position. That is well known and has proven itself.

In the context of DE 10 2004 052 599 A1, an opening / closing device designed as an opening aid is described. The opening aid causes in the closed position of the locking mechanism on the rotary latch a torque in the closing direction of the rotary latch. As a result, the associated pawl is adjusted from a Öffnungsverstellbereich the rotary latch and the catch can be opened by a motor.

The known arrangements can not convince. Because often the closing / opening device is complicated and requires a multiple power deflection. As a result, any play in the entire closing / opening device possibly has a negative effect. In fact, this game not only leads to a disturbing noise behavior, but can also be accompanied overall with functional impairments. Here, the invention aims to provide a total remedy.

The invention is based on the technical problem of further developing a motor vehicle door lock of the embodiment described at the outset in such a way that a force-deflection without deflection is achieved, taking into account an optimized noise behavior.

To solve this technical problem, a generic motor vehicle door lock in the context of the invention is characterized in that the motor drive is arranged in a plane substantially perpendicular to the Gesperreebene.

In this substantially vertical plane is usually the so-called housing level, which is regularly spanned by a lock housing. In contrast, the Gesperreebene corresponds to the spanned by the locking plane, which usually coincides with a box level. This is because the locking mechanism is usually taken in a lock case (made of steel), whereas the lock housing is usually designed as a plastic injection molded part.

In general, the motor drive is also placed above an inlet mouth of the locking mechanism. This applies in any case in the installation or

Mounting position of the motor vehicle door lock. That means that with the

Locking bolt of the door lock interacting lock is with his

Einlaufmaul arranged below the motor drive, which finds its place above it. Through the inlet mouth known to interact with the locking locking pin is inserted into the locking mechanism.

Because the motor drive is now arranged (in the installed position of the motor vehicle door lock or the door lock) above the inlet mouth and, for example, not at its level or below the inlet mouth, the closing / opening device can altogether in one area the motor vehicle door lock are arranged in the space is available. Of course, the same also applies to the associated motor vehicle door, which generally provides the necessary installation space for the motor drive above the inlet mouth.

The area in the amount of the inlet mouth and below this installation space usually has not. For here mostly facilities, such as an anti-theft device, a central locking device, etc., have to find space. In any case, the installation space above the insertion jaw is advantageously used within the scope of the invention, namely by placing the motor drive in this area. In most cases, there is even a transmission device in this area in addition to the motor drive.

This transmission device is designed so that it generally provides for a reduction of the rotational speed and rotational movement of the motor drive and works by means of this reduced rotational movement on one end of the Zuzieh- / opening device provided latch arrangement. This pawl arrangement is in turn arranged in the Gesperreebene.

That is, the motor drive is generally found together with the transmission device in the common housing level, and advantageously above the inlet mouth of the locking mechanism. As a result, the most space available at this point can be used optimally. In addition, since the motor drive is placed together with the transmission device in the common housing level, the motor drive can work essentially without deflection on the transmission device. As a result, the transmission device can be actuated almost free of play and particularly quiet. In addition, malfunctions are reduced to a minimum because ultimately the motor drive and the transmission device each arranged in a plane gears and drive lever have.

A deflection of the predominantly rotational movement of the motor drive and the transmission device in the common housing level takes place only at the transition from the transmission device to the latch arrangement. In fact, the transmission device interacts with the said pawl arrangement, taking into account a substantially rectangular motion deflection.

For the arrangement of the motor drive, the invention recommends various possibilities. Thus, individual components of the motor drive, such as a motor and / or an output shaft and / or a worm within the lock housing and the remaining components can be arranged outside. Mostly, the design is such that the motor is flanged on the outside of the lock housing and projects with its output shaft into the housing interior. Consequently, the screw located on the output shaft is naturally also found within the lock housing.

In this way, the already existing on the engine housing is advantageously used, namely as an extension of the lock housing to the outside. The motor is generally an electric motor, which usually and from the outset has its own housing. This housing or motor housing is encapsulated and therefore requires no additional encapsulation. As a result, the invention can deliberately dispense with mounting the motor, which is already equipped with its own housing or motor housing, even inside the housing for the motor vehicle door lock. Rather, the already existing motor housing is used for sealing and delimitation from environmental influences. Of course, it is also within the scope of the invention to place the engine including output shaft and worm inside the lock housing. Then it is conceivable, for example, to dispense with a separate motor housing, which saves costs and weight. - Of course, it is also within the scope of the invention that the motor is disposed within the lock housing, whereas, for example, the output shaft and the worm thereon are arranged outside. However, this is a variant that is not regularly used in practice.

It has proven useful if the lock housing in side view is designed substantially L-shaped. In this case, the longer L-leg of the L-shaped lock housing faces the locking mechanism. In fact, the longer L-leg directly adjoins the scaffolding plane and the box plane and is substantially perpendicular to this. From the longer L-leg of the L-shaped lock housing is a component from an angle. Of course, both L-leg and component are of course arranged unchanged in the common housing plane.

For the arrangement of the motor drive usually the longer L-leg of the L-shaped lock housing has proven to be favorable. He usually takes the transmission device. Due to the arrangement of the motor drive in the component of the L-leg of this is in principle accessible from three sides with the lock housing open. As a result, for example, the engine can easily be placed outside the lock housing and / or settings can be made on the output shaft and / or the worm, if necessary, in order to ensure transmission of the rotary motion of the motor or electric motor to the transmission device as free of play as possible. As a result, a motor vehicle door lock is provided, which is characterized by a kinematically particularly favorable arrangement of the motor drive, the associated transmission device and consequently the closing / opening device as a whole. Due to the special arrangement, deflections of the rotational movement of the motor, which is generally designed as an electric motor, are reduced to a minimum. In fact, de facto only takes place at the transition from the transmission device to the pawl arrangement, a movement reversal.

In this way, the noise behavior is optimized and can practically exclude functional impairments. As a result, the safety is increased and a cost reduction is observed. Quite apart from that, of course, the comfort associated with a closing / opening device comfort are given. Here are the main advantages.

In the following the invention will be explained in more detail with reference to a drawing showing only one exemplary embodiment; show it:

1 and 2 the motor vehicle door lock according to the invention in one

View of the overall housing, partially with the housing cover removed (FIG. 2),

3 shows the motor for the closing / opening device with the following gear in detail,

Fig. 4 is a front view of the catch with associated Zuziehklinke

(Fig. 4),

Fig. 5 shows the rear view of the article of FIG. 4 and Fig. 6 shows a modified embodiment in the assembled state.

In the figures, a motor vehicle door lock is shown, which essentially consists of a motor vehicle door lock 1 shown completely in FIGS. 1 and 2 and a lock holder 2 indicated only in FIG. 4. The motor vehicle door lock 1 is arranged in the interior of a motor vehicle door, for example such that an outer panel and an inner panel of the motor vehicle door are each arranged predominantly parallel to the motor vehicle door lock 1 in the illustrated position according to FIGS. 1 and 2 above and below the plane of the drawing.

The motor vehicle door lock or the motor vehicle door lock 1 is equipped in its interior with a locking mechanism 3, 4, from which one recognizes in Fig. 4, the rotary latch 3 and an associated pawl 4, which cooperate in the usual manner. That is, the lock holder 2, which retracts into a lock case 5 via an inlet opening E, rotates the catch 3 in a clockwise direction as shown in FIG. 4, so that the pawl 4 initially engages in a pre-catch 8 and then in a main catch 9 as shown. In order to support this process and to overcome opposing forces caused by deformed door rubber seals on the motor vehicle door, a closing / opening device 10, 11, 12, 13, 14, 15, 16, 17 and 18 is additionally realized. The closing / opening device 10 to 18 is presently configured as a closing aid 10 to 18. The lock case 5, in conjunction with a lock housing 6, 7, forms an overall housing 5, 6, 7 of the motor vehicle door lock 1.

The closing / opening device 10 to 18 or the closing aid 10 to 18 has a motor 10 designed as an electric motor 10, which works with the aid of an output shaft 11 and a worm 12 to a first gear 13, which with a second gear 14 of larger diameter combs. The second gear 14 operates via a crank mechanism 15, 16 to a drive lever 17, which acts on the end of the drive chain, a pawl 18 which is present and not restrictive designed as a closing pawl 18 (see Fig. 4).

The closing pawl 18 engages in a Zuziehkontur 19 on the rotary latch 3, if the electric motor 10 is applied in the zugziehendem sense. For then ensures the retracting into the Zuziehkontur 19 Zuziehklinke 18 that the rotary latch 3 is pivoted in the illustration of FIG. 4 in a clockwise direction and example is safely transferred from its pre-locking with fallen into the pre-ratchet 8 pawl in the main latching position as shown, in which engages the pawl 4 in the main catch 9 of the catch 3.

For the invention is now of particular importance that a motor drive 10 to 12 of the closing / opening device 10 to 18 is arranged in a spanned by the lock housing 6, 7 housing level. In this case, the housing plane is arranged perpendicular to a scythe plane spanned by the lock case 5 or the lock 3, 4. The motor or electric motor 10 for acting on the closing / opening device 10 to 18, which in turn acts on the locking mechanism 3, 4, in the example on the outside of the housing or lock housing 6, 7 of the motor vehicle door lock 1 attached. Here, the motor or electric motor 10 is connected to the housing 6, 7, that its output shaft 11 projects into the housing interior. It can be seen that the housing or lock housing 6, 7 is arranged in the longer L-leg 7 of the lock. The longer L-leg 7 faces the lock holder 2 or the lock 3, 4. The component 6 is at an angle from the longer L-leg 7 and is designed as a motor mount 6.

FIG. 3 shows a further motor or electric motor which, in the present case and not restrictively, performs both a central locking and anti-theft function. This is not mandatory. The elements of the opening / closing device or the closing aid 10 to 18 are placed on or inside the lock housing 6, 7, except for the latch arrangement 17, 18 placed in the scythe plane or in the lock case 5. In this way, the motor vehicle door lock 1 has over the same width of the lock box 5 as if, in comparison, a motor vehicle door lock 1 without closing aid 10 to 18 would be placed inside the vehicle door. It is thus realized a compact design that can be easily install between the outer panel and the inner panel of the vehicle door. In fact, the flange-mounted electric motor 10 ultimately only causes the size of the lock housing 6, 7 increases in the longitudinal extent of the vehicle door, which is technically no problem. In addition, the weight ratios are particularly well balanced, as already described in the introduction.

It can be seen that the electric motor 10 is flanged to the engine mount 6. In this way, the locking mechanism 3, 4 and the associated actuating and locking elements on the one hand and the closing device or the closing aid 10 to 18 on the other hand each be designed as prefabricated modules.

In order to be able to fix the electric motor 10 reliably to the motor mount 6, the motor 10 has a mounting flange 20 resting against the respective housing 6, 7. Mounted on this mounting flange 20 or inserted in the mounting flange 20 is a seal 21, which ensures the encapsulated connection of the electric motor 10 to the housing 6, 7 and the motor mount 6. In this way, the electric motor 10 can be easily installed and removed. This is even more so, as he can easily bring his worm 12 on the output shaft 11 into engagement with the first gear 13. In fact, this is only necessary to insert the electric motor 10 through an associated housing opening and with Help the Anbauflansches 20 to anchor edge of the housing opening. - The electrical connection is thus easily possible, because the electric motor 10 dives with its terminals 22 into the housing interior and can be contacted here.

It can be seen from the detailed illustration according to FIG. 3 that the electric motor 10 operates on the closing pawl 18 via a transmission 12, 13, 14, 15, 16 and 17. The transmission 12 to 17 is composed of the worm 12, the two gears 13, 14, the crank mechanism 15, 16 and finally the drive lever 17, which is connected directly to the closing pawl 18 in an articulated manner. So that the closing pawl 18 is protected against external influences as reliably as possible, it is found above the inlet mouth E.

When attaching the closing pawl 8 above the inlet mouth E, the invention makes use of the knowledge that dirt can possibly penetrate via the inlet mouth E into the interior of the overall housing 5, 6, 7. Since the closing pawl 18 is as far away as possible from the inlet mouth E, consequently, impairments due to dirt are reduced to a minimum. Finally, the figures show that the drive lever 17 is mounted coaxially in comparison to the rotary latch 3 on the matching axis. As a result, a kinematic particularly favorable action on the closing pawl 18 is achieved with the aid of the electric motor 10.

Overall, it can be seen that the opening / closing device or the closing aid 10 to 18 in the example case of the motor drive 10, 11, 12, the transmission device 13 to 16 and finally the latch assembly 17, 18 composed. In this case, the motor drive 10, 11, 12 is preferably arranged in the housing plane substantially perpendicular to the Gesperreebene, wherein the arrangement according to the invention can have an angle of 80 ° to 150 ° to Gesperreebene. The spicery plane coincides with the spanned by the locking mechanism 3, 4 plane or the box level of the associated lock box 5 together. On the other hand, the housing plane is spanned by the housing 6, 7 or the lock housing 6, 7, which is configured in a L-shaped plan view to form the lock retainers 5.

The motor drive 10, 11, 12 is now placed above the inlet opening E of the catch 3, 4. In addition, the motor drive 10, 11, 12 is located together with the transmission device 13 to 16 in the common housing plane, which is spanned by the housing 6, 7. In the variant according to FIG. 6, the motor drive 10, 11, 12 is now arranged completely in the housing or lock housing 6, 7. Incidentally, the motor drive 10, 11, 12 operates substantially without deflection on the transmission device 13 to 16. End of the transmission device 13 to 16 is the latch assembly 17, 18, which is arranged in the plane perpendicular to the housing plane Gesperreebene.

Only at the transition from the transmission device 13 to 16 to the pawl arrangement 17, 18 takes place a substantially rectangular motion deflection. In contrast, the rotational movements of the motor 10 and the motor drive 10 to 12 without deflection on the transmission device 13 to 16 are transferred. As shown in FIG. 6, the motor mount 6 essentially carries the motor drive 10, 11, 12. On the other hand, the longer L-leg 7 receives the transmission device 13 to 16.

Claims

Protection claims:

1. Motor vehicle door lock, with a locking mechanism (3, 4), and with a closing / opening device (10 to 18), which by means of at least one motor drive (10, 11, 12) acts on the locking mechanism (3, 4), characterized in that the motor drive (10, 11, 12) is arranged in a plane substantially perpendicular to the ground plane.

2. Motor vehicle door lock according to claim 1, characterized in that the motor drive (10, 11, 12) above an inlet mouth (E) of the

Gesperres (3, 4) is placed.

3. Motor vehicle door lock according to claim 1 or 2, characterized in that the motor drive (10, 11, 12) together with a transmission device (13 to 16) is arranged in a common housing plane.

4. Motor vehicle door lock according to one of claims 1 to 3, characterized in that the motor drive (10, 11, 12) completely or partially in a lock housing (6, 7).

5. Motor vehicle door lock according to one of claims 1 to 4, characterized in that individual components of the motor drive (10, 11, 12), for example a motor (10) and / or an output shaft (11) and / or a worm (12) within the lock housing (6, 7) and the remaining components are arranged outside.

6. Motor vehicle door lock according to one of claims 1 to 5, characterized in that the lock housing (6, 7) is substantially L-shaped with the locking (3, 4) facing the longer L-leg (7) and from the longer L-leg (7) angularly projecting engine mount (6) is formed.

7. Motor vehicle door lock according to one of claims 1 to 6, characterized in that the motor drive (10, 11, 12) substantially without deflection on the transmission device (13 to 16) works.

8. Motor vehicle door lock according to one of claims 1 to 7, characterized in that the closing / opening device (10 to 18) has an end on the locking mechanism (3, 4) engaging pawl arrangement (17, 18) which is arranged in the Gesperreebene.

9. Motor vehicle door lock according to one of claims 1 to 8, characterized in that the transmission device (13 to 16) interacts with the pawl arrangement (17, 18) taking into account a substantially rectangular motion deflection.

10. Motor vehicle door lock according to one of claims 1 to 9, characterized in that the motor housing (6) of the lock housing (6, 7) substantially carries the motor drive (10, 11, 12), while the longer L-leg ( 7) receives the transmission device (13 to 16).