Kiekert Ag

Michael Strathmann

Stephan Mittelbach

Rolf Siemensmeyer

Frank Kleefeldt

Horst Brackmann

Dirk Eichel

Dietmar Kritzler

Gerhard Zimmermann

Stefan Uecker

Rolf Meier

A closing device for a motor vehicle includes a locking mechanism having a rotary latch and at least one pawl, a trigger lever, with the locking mechanism being unlocked by the trigger lever, and a blocking component which is arranged on the closing device for blocking a movement of the trigger lever when a load acts on the motor vehicle from the outside. The blocking component can be guided in the closing device in a movable manner.

Closing device for a motor vehicle

The invention relates to a motor vehicle door lock which is equipped with a locking mechanism, an actuating lever mechanism, comprising at least one actuating lever and a coupling lever, and finally at least one blocking element. The blocking element ensures a mechanical connection between the actuating lever and the coupling lever during normal operation. In the event of acceleration forces of a specified magnitude, for example during an accident, the blocking element mechanically separates the actuating lever and the coupling lever. According to the invention, a locking element is provided in addition to the blocking element, said locking element acting on an actuating element for the coupling lever such that at least during an accident, the coupling lever is not just mechanically separated from the actuating lever but additionally assumes the 'locked' position.

Motor vehicle door lock

A motor vehicle door lock is provided with a catch with an actuating-lever mechanism which acts on the catch. There is also a locking lever which, together with the actuating lever, renders the actuating-lever mechanism inactive when accelerating forces of predetermined magnitude occur, for example in the event of a crash. The actuating lever and locking lever disable the actuating-lever mechanism mechanically, as a result of the accelerating forces occurring, by associated deflection. Following dissipation of the accelerating forces, the actuating lever and locking lever reconnect the actuating-lever mechanism.

A motor-vehicle door-latch handle assembly has a mounting plate, an elongated handle having a rear end pivoted in the mounting plate and a front end formed with a horizontally and transversely projecting actuation arm having a hook end. The handle is pivotal on the plate between an inner position with the front end resting against the door and an outer position with the front end pulled horizontally out of the door. A coupling element is pivoted on the door about a horizontal axis and has one radially projecting coupling arm engageable with the hook end of the handle, another radially projecting coupling arm, and a radially projecting abutment formation. A link extends vertically between the other coupling arm and the latch so that when the handle is displaced into the outer position the element is pivoted and the link is displaced vertically to actuate the latch. A spring rotationally urges the coupling element such that the one coupling arm bears on the hook end and biases the handle into the inner position. A lever pivotal on the plate has one lever arm movable into and out of a blocking position angularly engaging the abutment formation and blocking rotation of the coupling element and inward movement of the one coupling arm and another lever arm. A holding pin displaceable on the door is engageable with the other lever arm for displacing the one lever arm into the freeing position.

Pull handle for motor-vehicle door latch

A motor-vehicle latch assembly has a door latch displaceable between a locked and unlocked position, a housing forming a seat, a lever pivoted on the housing, and a linkage connected between the lever and the door latch for displacement of the latch between its positions by the lever. A lock cylinder can fit in the seat and with the lever and interengaging formations on the lever, housing, and cylinder retain the lever in a predetermined angular position on the housing except when the cylinder is fitted in the seat. The housing is centered on an axis and has an elastically deformable and axially rearwardly projecting tongue having a radially inwardly directed ramp surface. The lever projects radially from the housing and is formed with a radially outwardly open notch receiving the tongue in a predetermined angular position of the lever on the housing. The lock cylinder engages the ramp surface when fitted fully in the seat to deflect the tongue radially outward out of the notch so that until the cylinder is fitted to the seat the lever is prevented from rotating.

Lock-cylinder assembly for motor-vehicle door latch

A motor-vehicle door latch has a latching element movable between a latched position retaining a door bolt and an unlatched position releasing the door bolt, and a locking pawl engageable with the element and displaceable between a locked position retaining the latching element and an unlocked position freeing the element. A planetary-gear drive has a reversible electric motor, a sun gear rotatable by the motor, a planet carrier, at least one planet gear meshing with the sun gear and carried on the carrier, and a ring gear meshing with the planet gear. A locking lever is displaceable by a locking element and by the planet carrier between a locked position and an unlocked position and a coupling element is displaceable between a coupling position engaged between the locking pawl and locking lever for coupling the locking pawl and lever together. An antitheft element is displaceable by the ring gear between an antitheft-on position engageable with the coupling element and retaining same in the uncoupling position and an antitheft-off position. Structure coupled to the antitheft element arrests the planet carrier in the antitheft-on position of the antitheft element. A releasable coupling is provided between the antitheft element and the ring gear for joint movement of the antitheft element and ring gear. The locking lever coupled to the antitheft element displaces of the antitheft element from the antitheft-on position to the antitheft-off position by the locking lever when the locking lever is actuated with sufficient force to release the coupling.

Power-actuated motor-vehicle door latch

A motor-vehicle door latch has a housing, a latching fork pivotal on the housing, and a release pawl pivotal on the housing between a latched position retaining the fork in a latched position engaged around a bolt and securing a motor-vehicle door closed and an unlatched position in which the fork can release the bolt and allow the door to open. An inside door handle can move between a center rest position, an end open position, and an end lock position. A bowden cable has a sheath fixed to the housing and a core having a pair of ends one of which is attached to the handle for displacement of another end of the core jointly with the door handle. A locking lever can pivot between a locked position and an unlocked position. A first actuating lever pivotal on the locking lever offset from its axis has one end connected to the other end of the cable core and an opposite end and a second actuating lever pivotal on the housing between an actuated and an unactuated position has a formation engageable with the opposite end of the actuating lever only in the unlocked position of the locking lever. Mechanism between the second actuating lever and the pawl displaces the pawl into the unlatched position on displacement of the second actuating lever into the actuated position.

Motor-vehicle door latch with single-handle inside actuation

A motor-vehicle door has generally upright inside and outside panels, a window frame above the panels, a track extending vertically between the panels into the frame, and a window glass vertically displaceable in the track between the panels. A latch assembly has a holder, an outside door handle in the holder, a door latch on an edge of the door between the panels, a connecting housing between the panels and having a U-section lower part fixed to the door latch and an upper part fixed to and carrying the holder for the outside handle with the handle on the outside door panel, and a link rod extending between the outside door handle and the door latch and laterally enclosed by the U-section lower part.

Motor-vehicle door

A motor-vehicle door latch having an element settable in locked, unlocked, and open positions, has an actuating assembly having a pivot defining a pivot axis remote from the latch. An inside locking lever mounted on the pivot has an outer end to one side of the pivot and an inner end to the opposite side of the pivot and a bowden cable is connected between the outer end and the latch element and connects the latch element with the inside lever for joint pivoting between the locked, unlocked, and open positions. An inside actuating lever is mounted on the pivot coaxial with the locking lever. A coupling between the levers is displaceable between a coupling position for displacing the locking lever and bowden cable and thereby setting the element in the open position on pivoting of the actuating lever and a decoupling position for pivoting of the actuating lever without pivoting of the locking lever.

Growing community of inventors

Velbert, Germany

Michael Strathmann