Abstract:
A low-noise embodiment of a motor vehicle lock, which optimally transmits the forces that occur when driving a motor vehicle, is provided with a lock bow (8) having a specially designed bow leg (4). The outer wall (17) of the bow leg (4) has a surface structure (16), particularly in the contact area (15), consisting of grooves (19, 20) running obliquely to the longitudinal axis (22) or of corresponding webs (21). In addition to a special design of the grooves (19, 20) and the webs (21) on the outer wall (17) of the bow leg (4), it is thus possible to provide the rotary catch (11) in the receiving section (12) with such a surface structure (16) or similar in order to be able to transmit optimal pressure loads or other loads and in order to significantly minimize noise that may occur in this area when the vehicle is in motion.
Abstract:
In order to minimize the sliding friction appearing between the pawl (5) and the rotary latch (2) of a motor vehicle door lock (1), it is advantageous, if during the production process, the various catch surfaces (12, 13) of both locking parts (30, 31) are associated with one or also two puzzle components (50, 51), said puzzle components (50, 51) being inserted into the main latch area (49) of the pawl (5) or rotary latch (2), in a secured position in correspondingly adapted puzzle-shaped contours (53, 54). Said edge surfaces (55) and/or (56) can advantageously compensate the effect of the adverse stamped contours (11 or 14) present on the other locking part (30, 31) such that both locking parts (30, 31) are in mutual contact reducing the friction.
Abstract:
The invention relates to a motor vehicle door lock equipped with a locking mechanism, an actuation lever unit acting on the locking mechanism, and a catch lever. The catch lever blocks the locking mechanism at least when acceleration forces of a given magnitude occur, e.g. in case of an accident (crash), rendering the locking mechanism ineffective. According to the invention, the catch lever acts upon a rotary latch of the locking mechanism in the direction of the blocking position of the rotary latch during normal operation and in the event of a crash while allowing the rotary latch and thus the locking mechanism to be in the releasing position only during normal opening operation.
Abstract:
The invention relates to a motor vehicle door lock comprising a locking mechanism (3, 4) and an closing/opening device (10 to 18) that consists essentially of a motor drive (10 to 12) and a transmission device (13 to 16) comprising at least one transmission lever (15, 16) that forms, together with at least one reinforcing plate (20), a bearing base (15, 16, 20, 21), which has to a large extent a U-shape when viewed from the side, for the entire transmission device (13 to 16).
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.
Abstract:
The problem addressed by the invention is providing a closing device for a motor vehicle that can be opened comfortably and nevertheless can be produced with little effort and cannot open in an unplanned manner. This problem is solved in that a closing device comprises a locking mechanism, which has a rotary latch and a pawl, and at least one electrical drive for opening the locking mechanism. The closing device has an actuating apparatus for actuating the electrical drive, such that the locking mechanism can be opened exclusively electrically. Thus, there is no mechanical system - for example, comprising a handle and a Bowden cable that connects the handle to a release lever of the locking mechanism - for enabling the locking mechanism to be opened exclusively in a mechanical manner, i.e., without the use of the electrical drive or another electrical apparatus. In the non-actuated state, the electrical drive is completely disconnected from the current-carrying electrical conductors. Thus, there is then no voltage on the drive, which must be used to open the locking mechanism. The actuating apparatus is designed in such a way that, by means of actuation, one or more electrical contacts are closed in order to contact the electrical drive to a current source and put the electrical drive into operation such that an associated door or flap can be opened.
Abstract:
In order to minimize the sliding friction between the locking parts (30, 31), that is, between the pawl (5) and the rotary latch (2) of a motor vehicle door lock (1), it is advantageous if, during the production process, the different latch surfaces (12, 13) of both locking parts (30, 31) are provided with a stamped contour (14) have straight grooves and also with a stamped contour (11), characterized in that the provided grooves (18', 19') are oblique. Said grooves (18',19') which are oblique to the latch surface (13) on the pawl (5) can be produced such that the entire pawl (5) or also the rotary latch (2) are connected in an oblique manner to the base (39) of the lock case housing (40) which can be produced in several ways. Between the straight grooves (17) and the oblique grooves (18', 19'), at least two coverings are provided which ensure that both locking parts (30, 31) are in mutual contact reducing the friction.
Abstract:
The invention relates to a method for producing motor vehicle door locks with the locking parts: a rotary latch and a pawl. Said latch and the pawl are stamped from rolled sheet metal defining vertical or approximately vertical edges with corresponding latch surfaces on the rotary latch and the pawl, and subsequently are provided with a covering whilst maintaining the catch surfaces. After stamping, the locking parts are bent in the region of the main latch and/or another latch resulting in the formation a contour which is void of stamped channels, and are then inserted into the lock housing box.
Abstract:
In order to minimize the sliding friction between the locking parts (30, 31) that is, between the pawl (5) and the rotary latch (2) of a motor vehicle lock (1), it is advantageous if, during the production process, the different latch surfaces (12, 13) of both locking parts (30, 31) are provided with a stamping contour (14) having straight grooves (17) and with a stamping contour (11) characterized in that the provided grooves (18', 19') are oblique. Said oblique grooves (18', 19') of the latch surface (13) on the pawl (5) are placed in the position indicated in figure (3) such that the entire pawl is twisted (5) about the longitudinal axis (38) thereof. Also, at least two overlapping points are provided between the straight grooves (17) and the oblique grooves (18', 19') such that both of the locking parts (30, 31) come into mutual contact reducing the friction.
Abstract:
The invention relates to a lock for a door or flap, comprising a locking mechanism that consists of a rotary latch (1) and at least one pawl (2) for locking the rotary latch (1), the rotary latch (1) when in the detent position preferably initiating an opening moment in the pawl (2). The design of the rotary latch (1) is such that said latch is deformed under excessive stress in the locked state in such a way that an engagement between the pawl (2) and the rotary latch (1) is maintained or increases. A lock of this type will not open even under excessive stress.