Zf Friedrichshafen Ag

Bernd Austermann

Matthias List

Tobias Miller

Gert Hanker

Armin Gierling

Heinz Reichert

Julia Klein

Stefan Csajagi

Berthold Schraff

Franz Brugger

Gerhard Spindler

Ulrike Ziereisen

Karl-Hermann Katzoreck

Thomas Breitweg

Armin Rasch

Juergen Igelmaier

A parking lock arrangement with an actuating device for engaging and disengaging a parking pawl () for interlocking and releasing a parking interlock gear () includes an axially movable actuating rod () with an axially displaceable actuating element () on an end facing the parking pawl (). During the engagement and disengagement of the parking lock, an actuating contour () of the actuating element () is in contact with an actuating zone () of the parking pawl () and with a support contour () of a housing-affixed guide element (). The actuating contour () is designed to be rotationally symmetrical with respect to a longitudinal axis () of the actuating element () and extends along this longitudinal axis (). The actuating contour () is a circular arc as viewed in the direction of the longitudinal axis () of the actuating element ().

Parking lock arrangement

A parking lock includes a locking pawl () and an interlocking element (). The locking pawl () is pivotably mounted on a pawl pin () and engageable with a parking interlock gear (). The interlocking element () is arranged on a connecting bar () to a selector disk (), spring-loaded with a spring element (), and clampable between the locking pawl () and a guiding plate (). An end of the connecting bar () facing away from the interlocking element () is articulatedly connected to the selector disk (). An engaging piece () of the selector disk () is operatively connected to a parking lock actuator (). The connecting bar () is arranged below the locking pawl () such that a motion plane of the connecting bar () is parallel to a motion plane of the locking pawl () and perpendicular to the pawl pin ().

Park lock for an automatic transmission in a motor vehicle

A parking lock device for a motor vehicle including a parking interlock gear and a parking pawl. The parking interlock gear has teeth and tooth gaps, wherein each of the teeth has a first and a second deflecting contour that are counter-revolving and radially increasing from a radial indentation toward a respective tooth flank. The parking pawl includes a ratchet tooth. The parking interlock gear is rotatable about an axis of rotation and the parking pawl is rotatable about or translational along a swivel axis parallel to the axis of rotation. The contours slidingly guide the ratchet tooth to catapult over the tooth gaps in a targeted rotational speed range of the parking interlock gear, the targeted rotational speed range being between a minimum limit speed and a maximum limit speed, such that contact is avoided between tooth flanks of the parking pawl and of the parking interlock gear.

Parking lock device for a motor vehicle

A transmission parking lock has an actuating rod that is essentially translationally displaceable, which bears an actuating element, and with a locking lever that is essentially rotationally displaceable, bears a locking element For inserting the transmission parking lock through the displacement of the actuating rod, the locking lever is pivotable from a resting position of the same into a locked position in such a manner that the locking element engages in a recess of a gear wheel () allocated to a gear shaft, and with a device that withdraws the actuating element of the actuating rod in the resting position of the same from the locking lever.

Transmission parking lock

A parking interlock arrangement for an automatic transmission of a vehicle which comprises a parking interlock gear () operatively connected to an output shaft and which can be locked by way of a locking pawl () in a shift position (P) of a notched disk (). The notched disk () is connected, in a rotationally fixed manner, to a selector shaft (). The locking pawl () can be actuated by way of a connecting rod (), and the connecting rod () is operatively connected to the notched disk () by way of a coupling device in order to limit the selecting torque to be applied to the selector shaft ().

Parking interlock arrangement for an automatic transmission

A transmission parking lock device having a gearwheel with teeth and gaps and a pawl having a pawl tooth. The gearwheel rotates and the pawl pivots about axes that are parallel to each other. The gearwheel teeth each have a first contour and tooth flanks with respect to rotation of the gearwheel. The pawl tooth has a second contour and tooth flanks relative to the rotation of the gearwheel, and the gearwheel has an outer radius. The gearwheel and pawl are kinematically linked by a linear relationship between the pivoting and rotational angles. The first and/or second contour are at least partially circular with a radius of the outer radius of the gearwheel, and the teeth and/or the pawl tooth have, in the area of the front tooth flank of the gearwheel or parking lock pawl, a crown tip relief relative to the outer radius of the gearwheel.

Growing community of inventors

Meckenbeuren, Germany

Bernd Austermann