Kiekert Ag

Thomas Waldmann

Thorsten Bendel

Michael Scholz

Holger Schiffer

Ludger Graute

Armin Handke

Werner Pohle

Marek Dragon

Klaus Götzen

Alexander Grossmann

Thomas Heide

Volker Westerwick

Andreas Schmitz

Thomas Hülsmann

Tobias Steffen

Bernhard Kordowski

Jianfeng Wang

Dimo Kloubert

Annika Rutenkolk

Hans-Joachim Westerhoff

Frank Nieddu

Steffen Akkermann

The invention relates to a motor vehicle locking device comprising a locking mechanism having a rotary latch and at least one pawl, an actuating lever mechanism acting on the pawl, and a child safety device having a control element (), wherein the control element () is latchable in at least two latching positions (R, R), and a spring element () on the control element (), wherein the spring element () interacts with a control cam () in such a way that the control element () is adjustable in a spring-loaded manner into the latching positions (R, R), and wherein the spring element () is designed as a spring lip ().

Motor vehicle locking device

A motor vehicle lock includes a catch, a pawl, and a latch plate, wherein the catch and the pawl are rotatably supported on the latch plate, the latch plate has at least two openings for mounting the motor vehicle lock, and the latch plate has an inlet slot for a latch holder, and wherein a splay lying opposite the inlet slot is provided on the latch plate, wherein the splay has the form of a semicircle at least in an end region opposite the inlet slot.

Motor vehicle lock

In order to minimize the sliding friction occurring between the locking parts, that is, between the pawl and the rotary latch of a motor vehicle lock, it is advantageous if, during the machining process, the different latch surfaces of both locking parts are provided with a punched contour and with a contour having a oblique machining groove. Machining grooves are formed, in particular on the latch surface thereof, after stamping the pawl. Defined shapes of oblique channels and/or machining grooves are produced, for example, by milling out the machining grooves. The oblique machining grooves are produced at a defined angle and guarantee that the straight channels on the rotary latch only have a few overlapping points with the oblique grooves, if both locking parts come into contact with each other.

Method for producing motor vehicle locks with an oblique main latch contour

In order to minimize the sliding friction between the locking parts, that is, between the pawl and the rotary latch of a motor vehicle door lock, it is advantageous if, during the production process, the different latch surfaces of both locking parts are provided with a stamped contour have straight grooves and also with a stamped contour, characterized in that the provided grooves are oblique. The grooves which are oblique to the latch surface on the pawl can be produced such that the entire pawl or also the rotary latch are connected in an oblique manner to the base of the lock case housing which can be produced in several ways. Between the straight grooves and the oblique grooves, at least two coverings are provided which ensure that both locking parts are in mutual contact reducing the friction.

Method for producing motor vehicle door locks with pawl placed in an oblique manner

In order to minimize the sliding friction between the locking parts that is, between the pawl and the rotary latch of a motor vehicle lock, it is advantageous if, during the production process, the different latch surfaces of both locking parts are provided with a stamping contour having straight grooves and with a stamping contour characterized in that the provided grooves are oblique. Said oblique grooves of the latch surface on the pawl are placed in the position indicated in figure such that the entire pawl is twisted about the longitudinal axis thereof. Also, at least two overlapping points are provided between the straight grooves and the oblique grooves such that both of the locking parts come into mutual contact reducing the friction.

Method for producing motor vehicle locks with a twisted locking part edge

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 while 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.

Method for producing motor vehicle door locks with a rolling surface as a locking part contour

The invention relates to a lock for a motor vehicle or a building, said lock being equipped with a rotary latch () rotatably supported in the lock housing () about a locking bolt (), wherein the lock housing () has a slotted guide () for the locking bolt (), said slotted guide having at least one spring lip () on the insertion side, which spring lip reaches into the slotted guide and cushions the locking bolt (), said spring lip having creaking protection () that partially covers the surface () of the spring lip, wherein the spring lip () has a bounding bead () at the free end () and wherein the creaking protection () is designed as a sheet metal clamp () that can be attached to the spring lip () in front of the bounding bead with a preload.

Lock having a modified spring lip for motor vehicle doors

Growing community of inventors

Mulheim (Ruhr), Germany

Thomas Waldmann